• Blonde, Brunette, Redhead: The initial trio is this, with Miko as the brunette, Hana as the redhead and Yuria as the blonde.
• Four-Girl Ensemble: Miko is calm and sensible, Hana is sweet and ditzy, Yuria is childish and temperamental, and Michiru is a beautiful model.
• Four-Temperament Ensemble: Miko is Phlegmatic (calm and good at keeping control of her emotions), Hana is Sanguine (cheerful, sociable and caring), Yuria is Choleric (impulsive, competitive and outspoken), and Michiru is Melancholic (stoic, reserved and a bit obsessive towards Miko).

Miko Yotsuya

Voiced by: Atsumi Tanezaki (Kadokawa PV), Sora Amamiya (anime) (JP), Alexis Tipton (EN)^{Other Languages} Itzel Mendoza (LA), Giulia de Brito (BR)

A normal high school girl with the unwanted ability to see ghosts.

• A-Cup Angst: While there's no indications that she's necessarily flat, there are times when she gets annoyed with Hana's bust size.
  • When Hana is playing around with a stethoscope in the nurse's office, she finds that she can't get a good read on her own heartbeat and wonders if she'd have an easier time with Miko's, much to the latter's chagrin.
  • In the same chapter, Miko is trying to get some perverted ghost away from Hana and is close to letting it latch onto her instead to spare her friend. At that movement though, the busty School Nurse enters, and the ghost almost immediately latches onto her. While Miko and Hana are thus able to leave safely, Miko can't help but feel as if she lost.
• Ambiguously Gay: Has shown no interest in men, and has been growing closer to Michiru and admiring her beauty, but it's still not confirmed if she returns her feelings. Then there is Miko's Pseudo-Romantic Friendship with Hana who is convinced that Miko is in love with her.
• Beautiful Dreamer: Michiru sneaks into Miko's bedroom at night and closely stares at her sleeping face.
• Becoming the Mask: A humorous version. Miko is implied to become Anaconda Anaguma fan for real after watching a video of his wrestling match to throw off the ghost stalking her in the cafe, enough to attend his meet-and-greet later.
• Big Sister Instinct: When Kyousuke unknowingly plucked a mysterious snowman, Miko panicked as the snowman's ghost got quite close in freezing her younger brother to death. She immediately destroyed the snowman with a can of hot red bean before picking him up and sprinting all the way back to her house whilst being chased by the ghost.
• Blessed with Suck: Miko's ability to perceive spirits is so powerful that it outdoes even actual veteran exorcists in their ability to see. This ability is also so strong that it actively hinders Miko's ability to function in daily life. Not only is she constantly stressed from seeing ghosts everywhere, the ghosts' activities impede Miko in various ways. They will rant and talk on their own even if nobody can hear, which can cause Miko to be unable to listen to what actual people are saying, and while they are incorporeal, they appear solid in her eyes, resulting in many situations where they block Miko's eyesight. The consequences of not having a clear line of sight speak for themselves; this has run the full gamut, from being as inconvenient as not letting her watch a movie with Hana to being as dangerous as causing her to run out into the street and nearly get hit by a truck. Not to mention, spirits actively take interest in humans that can perceive them, meaning despite all this, Miko has to actively ignore the spirits around her and pretend nothing is wrong.
• Born Unlucky: Miko has extremely bad luck since she keeps running into very scary and dangerous ghosts at every turn. When she goes at the temple for the New Year, she ends up drawing a bad luck fortune paper, three times in a row. Possibly literally as well, since Miko's father had the sight too, the ability is likely genetic.
• Bring My Brown Pants: In Chapter 15, following a terrifying encounter with a ghost on the subway that swung an axe at every living passenger, she asks Kyousuke to make a stop for some new underwear, with the obvious implication that she soiled herself in fear. In Chapter 58, she encounters this ghost on the subway a second time, and once again has to make a stop for new underwear.
• Butt-Monkey: The things that she needs to endure from seeing terrifying ghosts is astounding.
• The Champion: Ensuring Hana's safety from the ghosts is her top priority and she willingly goes to extreme lengths to stop any that might harm her, whether it's solving the matter of the ghost of Zen's mother, stopping the river ghost when Hana was sick, or even confronting the "god" of the mountain shrine they had visited.
• Closet Key: To Michiru. She used to be rather uninterested in people, but her increasing obsession with Miko is making her discover new feelings.
• Cowardly Lion: As much as she is genuinely terrified of the ghosts around her and absolutely hates having to pretend she doesn't see them, there will come times when she puts her foot down and willingly confronts them, such as deliberately provoking the ghost of Zen's mother to make her finally leave him, stopping a ghost that was trying to get an ill Hana, and confronting the "god" of the mountain shrine to prevent Hana from getting hurt as Miko's accidental debt to it.
• Cursed with Awesome: Miko's ability to see ghosts has brought her almost nothing but stress and misery. However, there's some benefits that come with it, like being able to see her ghost father and pass messages from the dead to their living loved ones. She also uses her ability to try and protect her friend Hana from the spirits drawn to Hana's aura.
• Deadpan Snarker: Mostly around Hana and her ginormous appetite.
• Deal with the Devil: As Romm explains to her in Chapter 34, her prayer at the shrine to keep Hana safe and help her with her ghost problem caused her to unwittingly enter a contract with the resident god, where it and its pair of kimono-wearing ghosts will save her from hostile ghosts thrice for an unspecified price. Because of how vague her requests were as well as mistakenly making two wishes instead of just one, they had a hard time carrying out the requests and getting their due, causing them to go after her cosigner, Hana, which understandably horrifies her.
• Energetic and Soft-Spoken Duo: Miko is much more reserved than her cheerful best friend Hana.
• Even the Girls Want Her: There's Michiru's behavior towards her for starters, and when Miko drops by Kyousuke's school to pick him up, two of Kyousuke's friends, one of whom is a girl, get flustered around her because of how pretty she is.
• Fangirl: Though she was initially faking it to get a clingy and jealous ghost off her tail, she eventually becomes a real big fan of the wrestler, Anaconda Anaguma, shortly after that. She even went to one of his meet and greets to pose for a photo with him!
• Girly Girl with a Tomboy Streak: Miko is girly enough, but she's also a big pro-wrestling fan.
• The Heart: She becomes this to the exorcists. While Mitsue, Romm and Seto don't always get along, mainly because of Seto's impulses to exterminate all ghosts without mercy, they're willing to put their differences aside to protect Miko because her good heart and bravery moves them.
• I Just Want to Be Normal: Nothing would make Miko happier than stop seeing scary ghosts.
• I See Dead People: She sees ghosts everywhere, much to her displeasure. Since they're Invisible to Normals, she struggles not to react to them, so she won't attract the attention of the ghosts or look insane in front of people.
• Leg Focus: A lot of focus tends to be put on Miko's legs, especially her thighs, in the anime.
• Light Feminine and Dark Feminine: Miko is the serious-minded and deadpan Dark Feminine to Hana's bubbly and outgoing Light Feminine.
• Lost Food Grievance: A year before the start of the story, Miko got into a fight with her father because he ate her pudding. According to her brother, Miko was so angry that she looked like a demon back then.
• Magnetic Medium: Miko seems to have a knack for meeting ghosts that only she can see wherever she goes. Considering how ghosts are everywhere in this setting, this might be inevitable, but they still make an annoying habit out of getting uncomfortably close to her.
• Meaningful Name:
  • Her given name is also the word for shrine maidens, the female religious attendants that are often depicted as having powers of exorcism in fiction.
  • "Yotsuya" contains the kanji for "four", symbolizing her connection to ghosts. It's also the name of a popular Japanese ghost story.
• Mistaken for Badass: Yuria thinks Miko is a part of a ghost hunting duo with Hana, even though in actuality Miko is trying her darnedest to stay away from ghosts. Yuria's mental evaluation of Miko's supposed greatness as an exorcist only gets wilder as the series progresses, from believing Miko can set up barriers and make simple gestures to exorcise ghosts to getting so badass she can get rid of them just by glaring at them.
• Mistaken for Flirting: Michiru mistakes many of Miko's actions towards her as flirting, like when Michiru asks her why she has been taking pictures of her and Miko says that she thinks Michiru is pretty. Actually, she can't even see Michiru's face because of the spirit that's attached to her body and only came up with an excuse in a panic because she can't tell Michiru she's been taking pictures of the spirit to show it to an exorcist.
• Mistaken for Gay: Hana thinks Miko may have a crush on her because Miko acts a bit odd when they're alone and sometimes gets apparently overprotective of Hana. In reality, Miko is trying to keep Hana away from the ghosts around them.
• Ms. Fanservice: Miko has a Shower and Bathtub Scene that the anime uses to show off her naked body (albeit covered with Scenery Censor, Godiva Hair and other camera tricks).
• Nerves of Steel: She can maintain a perfect poker face even when faced with several nightmare inducingly scary ghosts. Mostly out of necessity, since she fears the ghosts might go after her should she acknowledge them, which is proven right on multiple occasions.
• Nervous Tics: While she's able to keep a straight face during her ghost encounters, a sure sign that she's scared is her gripping the hem of her skirt. This works as a clever visual cue for viewers if the author makes an "invisible" chapter where ghosts are not drawn, since it clues the viewer into the fact that something terrifying is in the room.
• Nightmare Fetishist: Downplayed but she does think that some smaller ghosts are cute even though they are often just as grotesque-looking.
• Non-Action Protagonist: Miko is completely defenseless in front of ghosts and has no means to fight them. All she can do to protect herself is ignoring them so they don't notice her ability to see them. She has to rely on guardian spirits and experienced exorcists, like Romm and Seto, to be safe from the particularly dangerous ghosts that she can't ignore.
• Not So Stoic: While she maintains a straight face when a supernatural entity attempts to make contact with her, she's shown to enter a brief panic the moment they're gone, usually having Tears of Fear in her face.
• Oblivious to Love: From her perspective, Michiru looks like a scary monster that she must keep happy to prevent others from getting hurt by Michiru's tentacles. She has no idea that her actions towards Michiru are causing the latter to develop a big crush on her. Even after she becomes able to see Michiru's human face, Miko still doesn't seem to catch a hint even though Michiru isn't being subtle about her crush at all.
• Ordinary High-School Student: Miko was a perfectly normal high school girl until one day she suddenly started seeing abominable ghosts all around her. From then on, she constantly struggles to keep living her life like normal despite the scary things only she sees.
• Pinball Protagonist: For most of the series, Miko tries to live normally without any intention to get involved with the ghosts she keeps seeing around her. She only actively tries to do something about the ghosts if they jeopardize her friends' safety.
• Potty Failure: A semi-regular occurence to her due to frequent encounters with ghosts.
• Properly Paranoid: She tries her hardest to pretend that she can't see ghosts due to fearing they'll attack her if she reacts to or acknowledges them, which is proven right in every single occasion that she does so.
• Red Oni, Blue Oni: The Blue Oni to Hana's Red Oni. Miko is quiet, stoic, and introverted while Hana is energetic, cheerful, and outgoing.
• Right for the Wrong Reasons: When she and Hina meet Zen when trying to find someone to adopt a stray cat, she assumes that he's a cat killer based on the evil-looking cat spirits surrounding him and instead gives the cat to the guy with the Face of a Thug surrounded by more benevolent cat spirits. She's right that the cat would have been in danger, but more so because of the ghost of Zen's mother who killed every cat he came to own after her death.
• Selective Obliviousness: Miko tries to get involved with ghosts and the paranormal as little as possible, so she deliberately doesn't try to question the motives of their presence. Even though she sees her dad's ghost every day, the fact that he must have some Unfinished Business doesn't even cross her mind until Yuria points it out to her.
• Stalker Without a Crush: She tails haunted humans like Zen and Michiru to keep an eye on the ghosts attached to them. This leads to a massive misunderstanding after Michiru notices that Miko has been secretly taking pictures of her (to show them to the exorcist Romm) and she ends up convinced that Miko returns her obsessive love.
• The Stoic: While she's capable of giving small smiles every now and then, her main expression by default, when she's not being reduced to tears or a quivering mess after a spooky encounter that is, is a borderline non-expressive poker face, mostly as a means to protect herself by pretending she doesn't see the ghastly ghouls she sees in front of her. As the anime shows, she's apparently been rather subdued with her expressions even before she started seeing ghosts one day so it's likely she's just a reserved girl in general.
• Strong Family Resemblance: Miko looks so much like her mother that the only visual difference between them is their hairstyles. In fact, flashbacks show that Miko looks like a clone of her mother's teenage self.
• Sugar-and-Ice Personality: Miko is a nice and kindhearted girl, but almost superhumanly composed and controlled to be able to keep a poker face 90% of the time even in front of horrifying ghosts. She's only seen smiling around her family and friends.
• Supernatural Gold Eyes: She's the only character with yellow eyes and has an unusually potent ability to see ghosts.
• Superpowerful Genetics: It's eventually revealed that Miko inherited the ability to see ghosts from her father.
• Tears of Fear: As much as she tries to stay calm in presence of ghosts, most of the time, she can't hold back the tears from the utter terror she feels.
• Trademark Favorite Food: She's very fond of pudding.
• Unhappy Medium: Miko's ability to see ghosts only brings her a lot of fear and distress as she tries her best to ignore the terrifying stuff she sees every day.
• Unskilled, but Strong: Her ability to perceive ghosts can be considered this compare to all the other psychics. Yuria and Mitsue can only see the ghosts to a certain extent while Romm sees them as semi-transparent beings. Miko can see and hear the spirits the most clearly out of everybody. However, this would prove to be a massive disadvantage to Miko as she unable to distinguish between the human-looking ghosts and living people whereas the other psychics can see the difference. On top of that, Miko doesn't truly have any real means to defend herself from the hostile spirits other than playing dumb and hoping the ghosts don't realize that she can perceive them.
• Warning Mistaken for Threat: Miko puts Yuria in a sleeper hold in the gym's storage room to stop her from drawing the attention of a dangerous ghost that she can't see. Afterwards, Miko only tells Yuria that it's best to ignore the ghosts and don't talk about them. Yuria ends up misunderstanding it as Miko threatening her into keeping quiet about her secret and gets terrified whenever she thinks Miko is going to shut her up again.

Hana Yurikawa

Voiced by: Ayasa Itō (Kadokawa PV), Kaede Hondo (anime) (JP), Sarah Wiedenheft (EN)^{Other Languages} Azul Valadez (LA), Luana Stteger (BR)

Miko's classmate and best friend.

• All-Loving Heroine: Hana is very kind, loving and compassionate, always trying to get along with everyone and make her friends happy.
• Best Friend: For Miko, Hana is her most important friend and they do almost everything together.
• Big Eater: In the majority of her scenes, she's either eating or talking about eating. This is also shown to be how she maintains her ginormous aura.
• Boob-Based Gag: Her huge bust size is a major source of humor. For example, Hana jokes about never getting fat because all the calories go to her boobs.
• Bunnies for Cuteness: She's obsessed with the Lambda Rabbit brand, to the point her bedroom is decorated with nothing but Lambda Rabbit merch.
• Buxom Beauty Standard: She has a well-endowed chest that some perverted spirits sometimes focus on, while she remains blissfully unaware of it. It's also a Running Gag for Miko to be jealous of her bust size.
• Cast from Calories: The main weakness of her protective aura is that it requires a large amount of energy to maintain and draws directly from her life force, which is why she's always hungry. This is exacerbated when she's in the presence of more powerful ghosts that don't get instantly destroyed by her aura, causing her to expend more energy than normal and nearly pass out from hunger.
• Childhood Friends: Hana has been Miko's best friend since elementary school.
• Cooldown Hug: When Michiru is about to stab her with a pen, Hana gives her a hug and thanks her for caring about Miko. This succeeds to calm Michiru down and subside her Yandere impulses.
• The Cutie: She's a sweet, innocent bubbly girl with cute mannerisms.
• A Day in the Limelight: Chapter 10 focuses on her.
• The Ditz: She's ditzy enough to forget to put on her panties after PE class.
• Early-Installment Weirdness: During the first time we meet Hana she is possessed by a "handsy" ghost that clings to her body, before moving on to a much "fuller" woman. Later chapters would establish that Hana's massive aura was dangerous to even high-level spirits and capable of fully exorcising any low-level spirit that got too close.
• Energetic and Soft-Spoken Duo: She's very cheerful and excitable, as opposed to the more reserved Miko.
• First-Name Basis: To everyone. She's also subject to this as everyone simply calls her Hana.
• Girls Love Stuffed Animals: She keeps many Lambda Rabbit plushies in her bedroom.
• Going Commando: In one early chapter, she forgets to wear panties after changing from her PE uniform and stays that way for the rest of the day at school.
• Growling Gut: Her stomach grumbles whenever she gets very hungry and if it's too bad, she nearly collapses from hunger. Miko later discovers through Yuria that the real cause is that Hana's aura is fueled by the food she eats and it weakens when she's near ghosts.
• The Heart: Hana always keeps the spirits up for Miko and her other friends. She can win almost anyone over with her sweet and caring nature.
• Hyperactive Metabolism: Hana's aura gets drained when she's in close proximity to powerful ghosts. She unwittingly restores her aura by eating food.
• Invisible to Normals: Her massive amount of life energy puts her as more of an anomaly to other people with supernatural sight than Miko. In fact, Miko can't see Hana's aura and needs Yuria's help to know when Hana's aura is fading.
• Jokers Love Junk Food: Hana is a bubbly airhead who loves all sorts of junk food and sweets, especially donuts.
• Kindhearted Simpleton: She's a bit of a moron, but still a very kind and empathetic friend to Miko and others.
• Life Energy: Hana has enough of this to roast smaller ghosts. It can harm bigger spirits as well if they get too close to her at "full" power.
• Light Feminine and Dark Feminine: Hana is the bubbly and outgoing Light Feminine to Miko's more serious-minded and deadpan Dark Feminine.
• Loved by All: Hana is beloved by all her friends because of her kind and lovable personality. Even Michiru, who was initially bitter and jealous over Hana's closeness to Miko, becomes fond of her thanks to Hana treating her kindly.
• Man of Kryptonite: Hana has a natural, powerful, aura that keeps her safe from malicious spirits. Weaker ones get purged almost immediatelly, but stronger ones can drain her to the point she starts starving very quickly.
• Mistaken for Badass: Yuria thinks Hana is a part of a ghost-hunting duo with Miko, even though Hana can't see ghosts and is scared of them regardless.
• Never Gets Fat: Hana never gains a single pound no matter how much she eats. Miko jokingly claims all of Hana's fat goes to her breasts.
• Nice Girl: She's kind and friendly towards everyone, even complete strangers.
• The Not-Love Interest: Hana is Miko's Best Friend and the few times Miko tries to actively do something about the ghosts is when Hana's wellbeing is at risk.
• Oblivious to Hatred: She thinks of Michiru as a friend, unaware that the latter wants to steal her spot as Miko's best friend. After Michiru admits her true feelings, Hana still treats Michiru as her friend and wants her help so both can support Miko, leading Michiru to finally warm up to Hana.
• Protectorate: Unwittingly is this to Miko, as she goes extreme lengths to stop any ghosts that might harm her, whether it's solving the matter of the ghost of Zen's mother, stopping the river ghost when Hana was sick, or even confronting the "god" of the mountain shrine they had visited.
• Pseudo-Romantic Friendship: Hana and Miko have been best friends for most of their lives. They're so close that Hana often jokes about Miko having a crush on her. They also feed each other and have sleepovers together.
• Purely Aesthetic Glasses: She wears glasses when she studies. She doesn't really need them, but puts them on so "her blood sugar doesn't escape".
• Red Oni, Blue Oni: The Red Oni to Miko's Blue Oni. Hana is energetic, cheerful, and outgoing while Miko is quiet, stoic, and introverted.
• Selfie Fiend: Hana loves taking selfies everywhere she goes.
• Stepford Smiler: Downplayed. Hana is a genuinely cheerful and happy girl, but chapter 53 reveals that at least some of Hana's personality is an act she puts on because she can tell that Miko has changed since her dad died, but since Miko won't say anything and Hana doesn't want to push the issue she instead tries to be as cheery around Miko as possible.
• Tareme Eyes: In contrast with her best friend Miko, Hana's eyes are round and droopy, fitting her cheerful, bubbly personality.
• Tastes Like Friendship:
  • Hana became friends with Miko in elementary school, after Miko gave her bread at lunch.
  • Michiru feeds Hana with bread when she's running low on energy due to her aura giving a power boost to Michiru's ghost tentacles. Afterwards, they become true friends.
• Trademark Favorite Food: While she eats all kinds of sweets, she favors donuts most of all.
• Unwitting Muggle Friend: Hana is completely unaware of the existence of ghosts and is best friends with the ghost-seeing Miko, who has to deal with all the ghosts they encounter without Hana's knowledge. She can sometimes tell Miko is worried about something, but Miko doesn't tell Hana about the ghosts to not scare her.
• Weirdness Magnet: Spirits are drawn to Hana's aura as they seek to steal her energy for themselves. Several times, Miko has to protect Hana from the spirits haunting her.
• Why Did It Have to Be Snakes?: She's scared of ghosts. Ironically, she doesn't know there's ghosts everywhere she and Miko go, as only Miko can see them and keeps quiet about it.

Yuria Nigurendou

Voiced by: Ayane Sakura (JP), Lindsay Sheppard (EN)^{Other Languages} María José Moreno (LA), Paula Almeida (BR)

A schoolmate of Miko and Hana who also can see ghosts, to a certain extent. A self-proclaimed rival to Miko.

• Adaptational Early Appearance: Yuria shows up briefly in the first episode of the anime adaptation, chapters before her official debut in the manga.
• Adaptation Dye-Job: She's blonde in both the manga and anime, but the anime gives pink highlights to her pigtails.
• Aura Vision: She is able to see Hana's enormous Life Energy, which Miko is unable to do and is the focus in chapter 31 due to Miko needing to keep it active to weaken a ghost, which Yuria is unable to see.
• Butt-Monkey: She often accidentally provokes ghosts that she can't see and Miko needs to knock her out to shut her up. She also passes out from sleeper holds and Marshmallow Hell courtesy of Miko and Hana.
• Chuunibyou: She has shades of this. She does have powers to see spirits, but she definitely plays it up in her head to make it more dramatic since she isn't aware that she can only see the weakest variety of spirits.
• Eating Lunch Alone: Miko accidentally runs into Yuria eating alone in the school restroom. She later eats with Miko and Hana more often.
• Entertainingly Wrong: Her Running Gag is that due to not being able to see the bigger ghosts, Yuria gets the wrong idea of what's happening. For example, Miko has to knock her out to not alarm a ghost that she can see it, but Yuria thinks Miko was using violence to silence her after she discovered Miko's ability to see ghosts. Later, misunderstandings lead Yuria to think Miko and Hana are a badass exorcist duo when none of them has the ability to fight ghosts.
• Friendless Background: Due to her powers she had a hard time making friends because she either scared people or they thought she was faking to get attention.
• Girlish Pigtails: She has two pigtails, suiting her role as the series' Token Mini-Moe.
• Inconsistent Spelling: Her first name often gets romanized as Julia or Yulia.
• I See Dead People: Yuria has a similar ability with Miko, although she can only see smaller ghosts.
• I See Them, Too: She says this to Miko almost word-per-word.
• Loner-Turned-Friend: Yuria could never make friends because no one believed in her ability to see ghosts. That's why she's very happy to be accepted as a friend by Miko and Hana.
• The Napoleon: She's notably shorter than most characters her age, and definitely has some attitude problems.
• Older Than She Looks: Despite her short stature and childlike build, Yuria is the same age as Miko and Hana. Lampshaded when Mitsue and Kyousuke mistake her for an elementary school student, only for Yuria to angrily tell them she's in high school.
• One Dialogue, Two Conversations: Practically every dialog between Yuria and Miko is this. It started with Miko engaging in double-talk to keep a nearby ghost from noticing them and kinda snowballed from there.
• Proper Tights with a Skirt: She wears black tights under her skirt.
• Secret-Keeper: She's the only one of Miko's friends who knows she can see ghosts, as Yuria can see some of them too. She keeps Miko's secret, although mainly out of fear after a misunderstanding made Yuria think Miko will hurt her if she tells anyone about them seeing ghosts.
• Signature Headgear: She ties her pigtails up with mushroom-themed hair accessories.
• Token Mini-Moe: Yuria is very childlike when compared to Miko and Hana who do look like teenage girls.
• Tsundere: She desperately wants to be friends with Miko, but also sees her as her rival.
• Tsurime Eyes: Her eyes are slanted upwards to reflect her somewhat abrasive character.
• Underestimating Badassery: Since she can only see smaller or weaker spirits, she ends up thinking that all spirits are as weak and harmless as those.
• Unknown Rival: She thinks of Miko as a rival after a series of misunderstandings make her think Miko is a powerful exorcist and Yuria gets desperate to prove that she can exorcise ghosts too. Meanwhile, Miko is ignorant of Yuria's one-sided rivalry and is merely trying to ignore the ghosts around her.
• Wrong Genre Savvy: Yuria thinks that she's in a supernatural action manga where she's The Rival to Miko who she mistakes for a protagonist with overpowered exorcism powers. She's really in a Horror Comedy and Miko's only power is seeing ghosts more dangerous than those Yuria can see, not having any ability to fight them, but Yuria's limited supernatural sight makes her misunderstand the situations she's in all the time.

Michiru Ichijou

Voiced by: Saori Hayami (Kadokawa PV)

A magazine model who transfers into Miko's class. Despite being human, Miko can only see her as a monster with an octopus for a head. Miko is able to tell her emotions and thoughts through the movements of her tentacles, which sparks Michiru's interest in getting close to Miko.

• Abhorrent Admirer: Michiru is all but outright stated to be madly in love with Miko, or at the very least wants to be close with her. Although most people see Michiru as a pretty girl, all Miko can see is a terrifying tentacle monster whose odd mannerisms only makes her scarier towards Miko. She starts losing the abhorrent part after Hana breaks through to her and she joins the group, as the tentacles retract into her body, allowing Miko to properly see her for the first time, whereupon she's struck by Michiru's beauty.
• All of the Other Reindeer: Throughout her childhood, other kids avoided and shunned her because of her weird behavior.
• Animal Motifs: Caterpillars. Michiru loves the insect and has a pet named "Pii-chan", which in truth is constantly being replaced by Michiru's sister Yoh every time one starts cocooning itself. In the same way, Michiru metaphorically is trapped in her development, as she's cut off from society by her well-meaning but over-protective sister and figuratively cocooned by a Guardian Entity that protects her. When the tentacles recede, it shows that Michiru is leaving her shell and finally able to connect with real friends. In Chapter 64 it's revealed that the tentacle creature is actually the spirit of Michiru's first ever pet caterpillar.
• Because You Were Nice to Me: Although many of her classmates treat her kindly, she believes they are only interested in her because of her looks and popularity, but then quickly develops an obsessive attachment to Miko because, from her perspective, Miko is the only classmate who can tell when she's upset and tries her best to make her feel comfortable rather than admired. What Michiru doesn't know is that Miko sees her as a horrifying monster whose tentacles will move to stab whoever makes her upset. Even after the issue is cleared up and she's legitimately friendly with Hana and Yuria, she's attracted and wants to be closest with Miko.
• Beneath the Mask: She tries to look calm and keep her emotions bottled up, but Miko can see whenever she's angry or upset by looking at her octopus spirit's tentacles. The most noteworthy example is when Michiru is in the presence of her Control Freak older sister; her human face looks unbothered, but Miko sees the octopus spirit going into a mad rage.
• Berserk Button:
  • It tends to be hard for anyone who isn't Miko to tell, since Michiru appears extremely unemotive on the surface, but there are a lot of seemingly small things that will cause her to get very upset, which Miko can tell due to her octopus spirit's tentacles acting like they're about to stab someone. Most of which are generally linked to her loneliness and isolation.
  • Touching her hair. She's subtly uncomfortable with her classmates crowding and fawning over her to begin with, but when one of them reaches for her hair her spirit tentacles immediately become hostile. This appears to stem from the fact that her sister, Yoh, treats brushing her hair as a one-sided bonding activity, causing Michiru to associate it with Yoh's smothering tendencies, and a violation of her control over her life and body.
  • Her sister, Yoh, serves as one in general. Yoh's constant attempts to control her life and isolate her from socializing has caused Michiru to build up a lot of resentment toward her sister, and her spirit violently ripples with eyes and spikes when Yoh appears.
  • Anything that looks like it might take Miko away from her. She's starts out mostly annoyed and somewhat hostile toward Hana for interjecting into moments where she feels connected to Miko, such as when Hana mentions that she thinks her Lambda Rabbit keychain is cuter than the Meme-chan keychain that Michiru and Miko like, but the realization that Hana actually already has the sort of extremely close relationship with Miko that she herself wants provokes a violent response from her spirit similar to their reaction to Yoh. She loses this after befriending Hana as well, however. Mostly.
• Better with Non-Human Company: For most of her life, Michiru only felt comfortable talking to caterpillars because her attempts at socializing with people always resulted in her being shunned and rejected for her weird behavior. This changes after she truly becomes friends with Miko, Hana and Yuria.
• The Big Girl: Thanks to the Guardian Entity that's protecting her, Michiru is the only one in Miko's group who can directly attack ghosts and only very strong ghosts aren't instantly destroyed by her spirit tentacles.
• Big Little Sister: She is much taller than her older sister.
• Clingy Jealous Girl: At first, Michiru doesn't take kindly to anybody who would steal Miko's attention away from her. In particular, she doesn't like Hana due to her status as Miko's Best Friend. She (mostly) grows out of it when Hana's kindness wins her over, outside of some small moments that are Played for Laughs.
• Consulting Mister Puppet: She doesn't confide her true feelings to anyone, not even her own sister, except for her pet caterpillar.
• Covert Pervert: She appears to be a calm and elegant model, but when she thinks no one is looking, she bites and sucks on the pencil Miko used for art class while thinking of Miko.
• Creepy Blue Eyes: She has blue eyes and is prone to very creepy behavior. However, it's downplayed because she's a nice girl deep down.
• Creepy Good: Michiru acts like a creepy Stalker with a Crush towards Miko, and it doesn't help the spirit possessing her makes her look like a terrifying mass of tentacles with legs in Miko's eyes. Despite her eeriness, Michiru is a good and caring girl at heart; she's just obsessive and possessive towards Miko because she believes only Miko can truly understand her. Once Hana gets Michiru to open up to her, Michiru dials down her bizarre behavior and the tentacles become mostly hidden, allowing Miko to see Michiru as the beautiful girl she is.
• Cthulhumanoid: From Miko's perspective, Michiru looks like a girl with a large tentacled and eyeless thing for a head, even in photographs. After she feels fully accepted by Miko's friend group, her face becomes visible and the tentacles only show in the lower half of her body. Though they'll still occasionally extrude from her body in odd places such as curling from the sides of her head like horns, or emerging from her eye sockets or mouth.
• Deuteragonist: Shares this role with Hana after her introduction in Chapter 39. Even after her main story arc concluded in Chapter 54, Michiru continues to be a focal character for the story.
• Diving Save: When Miko almost gets run over by a truck, Michiru jumps in and pulls Miko back to save her, although it also results in an accidental head bump for Miko.
• Emotionless Girl: Michiru does have emotions, but she bears either a completely neutral expression or a placid smile at nearly all times, rarely ever emoting at all and usually being fairly understated when she does. This trait simultaneously gives her a sort of ethereal air to her beauty when seen from afar, that attracts her many surface admirers, yet also makes her appear eerie and off putting when interacted with up close, which has isolated her from friendship. It seems Michiru has always been this way even as a young child, not visibly reacting even as she's shunned and rejected.
• Even the Girls Want Her: Her female classmates swoon over her beauty.
• Extreme Doormat: Around her sister Yoh, Michiru is very passive and obedient. She can't bring herself to protest against any of Yoh's actions, no matter how much these make her uncomfortable.
• First-Name Basis: After one day of knowing her, she begins addressing Miko solely by her given name while addressing everyone else by their last names like is proper. This being set in Japan, the fact she calls Miko by her given name would be interpreted as a sign of closeness if Miko had given her consent, but as she hasn't, it just further highlights her creepiness by disrespecting Miko's boundaries in the pursuit of her obsession. Nobody calls her out on it, and Miko gives the impression that she's reciprocates Michiru's closeness in her effort to get close in order to investigate her octopus spirit.
• Friendless Background: For most of her life, Michiru couldn't make friends because her strange behavior caused other kids to think she was creepy. Her sister Yoh limited her social interaction as much as she could, thinking that she was protecting her from being hurt, but it only made Michiru feel lonely and suffocated.
• Friend to Bugs: She has a pet caterpillar and is very fond of it.
• Good All Along: At first, it's heavily suggested that Michiru has a history eventually becoming violent towards others, even stabbing another student with a pen to drive them away from the target of her affection. However, it's revealed that she's never deliberately hurt anyone in the past and the aforementioned student was the target of her affection. Michiru had gotten obsessed with trying to find the girl's favorite missing pen in an attempt to win her over and accidentally cut the girl's palm when she tried to pull Michiru away from rooting around other students' desks.
• Head-Turning Beauty: Wherever she goes, people stare at her because of how beautiful she is.
• Huge Schoolgirl: She's at least a head taller than the other girls of her class and towers over the tiny Yuria.
• Hyper-Awareness: Michiru seems to possess a preternatural awareness of events around her, which are implied to be due to her bond with her tentacle spirit.
  • She immediately recognizes that Yuria is peeking out behind her from a bathroom stall, even calling out Yuria by name before turning to actually look at her.
  • She somehow notices that somebody (Miko) has just taken a picture of her from the sidelines even in the middle of a focused activity like shooting a basketball, and is secretly aware of every subtle picture Miko takes of her afterward.
  • She reaches out and pulls Miko back from running to what Miko thinks is Hana, a full handful of seconds later a vase falls directly in the path that Miko would have run through if Michiru hadn't stopped her. Due to the timing there's no feasible way she could have seen the vase falling beforehand, and she admits that she can't explain how she knew Miko would be in danger.
• I Just Want to Have Friends: All Michiru wants is to have friends, but she always ended up driving people away with her creepy and obsessive behavior. It didn't help that her sister Yoh tried to "protect" her by isolating her from her peers. She's very happy to hang out with Miko and her other friends because she finally feels like part of a group.
• I Love You Because I Can't Control You: She becomes obsessed with Miko because she's the only one who has no interest in her modeling job nor her beauty (since Miko can't even see her human face). She's only happy about Miko lying about seeing her as beautiful because it makes Michiru believe her love for Miko is mutual.
• Indifferent Beauty: At school, she ignores the many girls fawning over her beauty and focuses all her attention on Miko, the only one who treats her as a normal person because she can only see Michiru as a monster with an octopus for a head.
• Lipstick Lesbian: She's very feminine, works as a fashion magazine model, and has a major crush on Miko.
• Loner-Turned-Friend: Michiru couldn't make any friends while growing up because her peers always ended up becoming scared of her creepy personality and her sister deliberately blocked her attempts at socializing to protect her from being rejected. When she transfers to Miko's class, Michiru quickly becomes a member of Miko's friend group.
• Loon with a Heart of Gold: Michiru is stoic to the point of appearing emotionless and does very weird stuff, such as breaking into the houses of the people she likes at night. However, she's actually a very kind and caring person at heart. Despite initially showing hints of being a Yandere for Miko, she officially becomes a member of Miko's friend group after making peace with Hana.
• Lost Pet Grievance: Whenever "Pii-chan" becomes a cocoon, Michiru freaks out and makes a mess out of her bedroom looking for the caterpillar, until Yoh gives her a new one. After she officially joins Miko's friend group, Michiru accepts it when the newest Pii-chan becomes a cocoon and is waiting for it to turn into a butterfly, but she still misses talking to it every day.
• Maybe Magic, Maybe Mundane: The nature of Michiru's relationship with the supernatural is unclear. Romm posits that she's just a normal girl overlaid with a spirit possessing her, but there are aspects of Michuru herself that seem strange.
  • She somehow manages to break into Miko's room at night, bypassing locked doors and windows without being seen or heard by anyone, as if she simply appeared over Miko's bed suddenly.
  • She seemingly possesses a near unnatural Hyper-Awareness of others spying on her, immediately knowing that Yuria is watching her off to the side in a bathroom stall, or that Miko has just taken a picture of her mid basketball shot.
• Mistaken for Undead: Miko sees Michiru as a human with a creepy octopus-like head. She at first thinks Michiru is another of the weird ghosts haunting her so she tries to walk through her, only to find out Michiru has a physical body and everyone else sees her as a cute girl.
• My God, What Have I Done?: Played for Laughs. She saves Miko from a truck by pulling her back, but accidentally causes Miko to hit her head against the street. While Miko is unharmed, Hana tells her to get checked in case of a skull injury. Michiru freaks out so much that she calls for an ambulance.
• Mystical White Hair: She has pure white hair and a tentacled Nature Spirit has bonded itself to her, giving her the power to absorb and exorcise powerful ghosts.
• New Transfer Student: After a major arc, she joins the cast as the transfer student of Miko's class.
• Nobody Touches the Hair: Miko sees the intensely negative reaction of Michiru's head spirit's tentacles when a classmate tries to touch her hair. Michiru is happy that Miko apparently noticed and stopped the classmate for her sake.
• No Good Deed Goes Unpunished: From her perspective, she does nothing but try to help the people she likes, and they always end up hating her for it. With her knowing that she did something to drive them away, but not able to understand where she went wrong.
• No Sense of Personal Space: As she grows obsessed with Miko, Michiru wants to be as close to her as she can. While she herself doesn't invade Miko's personal space beyond socially accepted boundaries, physically at least, her octopus spirit's tentacles tend to touch and wrap themselves around Miko on multiple occasions, much to Miko's discomfort. It gets worse when a misunderstanding causes Michiru to mistakenly believe that her feelings for Miko are mutual, resulting in Michiru holding Miko's hand as the octopus' tentacles aggressively grab Miko and one of them shoves itself into Miko's mouth.
• No Sense of Privacy: Ever since she was a child, Michiru has had a bad habit of breaking into her friends' houses at night. She knows people get upset about that, so she makes sure she doesn't get caught.
• No Social Skills: From a young age, Michiru hasn't been able to understand social cues and personal boundaries, which has cost her several friendships due to misunderstandings.
• Oral Fixation: She makes a disturbing habit of chewing on the pencil Miko used at art class.
• The Pen Is Mightier: She once stabbed a classmate with a pen, although it was just an accident. Later on, she tries to do the same with a pencil to Hana, but Hana calms her down before she can attack her.
• Permafusion: She's an apparently unique case of a human fusing with a spirit, having come together in Michiru's childhood and showing no sign of being able to separate. Michiru gets flashes of Hyper-Awareness from the spirit and is weakened when the spirit is hurt, whereas the spirit acts on her desires and emotions.
• Perverted Sniffing: When Miko spills a drink on her and lets her borrow her clothes, the first thing Michiru does is sniffing them for Miko's smell.
• Pinocchio Nose: Her eyes dart away whenever she lies to someone. Ironically, Miko actually can't see this obvious tell since Michiru's spirit covers her entire head.
• Psycho Lesbian: She takes an almost immediate liking to Miko which quickly becomes a scary obsession. Thankfully, she grows out of the psycho part after Hana talks sense into her.
• Removed from the Picture: After she sees how close Miko and Hana are, Michiru steals one of Miko and Hana's childhood photos, and crushes Hana's face with her thumb out of spite.
• Secret Secret-Keeper: For the past ten years, Michiru has kept several caterpillars as pets, but since she always reacted negatively when her caterpillars turned into a cocoon, her sister Yoh kept replacing it in secret. Actually, Michiru always knew what Yoh was doing, but didn't say anything because having a caterpillar to talk to made her feel at ease.
• The Shadow Knows: She looks like a normal girl to people without paranormal vision, but the tentacles of her head octopus spirit do appear in her shadow.
• Signature Headgear: She always wears an iconic hair accessory that vaguely resembles a caterpillar.
• Stage Name: She's known as Chiruru when working as a model.
• Stalker with a Crush: She quickly turns into a very obsessive stalker for Miko. She learns where Miko lives from the teacher's student list, breaks into Miko's house at night and creepily watches her as she sleeps.
• Statuesque Stunner: Her tall stature is one of her many attractive features.
• Sugar-and-Ice Personality: She's generally aloof and apathetic because a lot of people are only interested in her fame and beauty. Since Miko seems to treat her like a real friend, Michiru quickly develops a very passionate affection for Miko and can show a surprisingly playful side when feeding Miko a donut to get an Indirect Kiss with her.
• Tall Is Intimidating: She towers over Yuria, who gets easily intimidated by Michiru's height.
• Transfer Student Uniforms: She wears a black Sailor Fuku instead of the uniform of Miko's high school, making her stand out as the New Transfer Student.
• Transparent Closet: It doesn't take long for Yuria to notice Michiru's big crush on Miko.
• Unknown Rival: She feels jealous of Hana's long-term friendship with Miko and soon starts seeing Hana as her rival for Miko's affection, not that either Miko or Hana notice because they don't even know about Michiru's obsessive infatuation. When she confronts Hana about her jealousy, Hana comforts Michiru and still accepts her as a friend, leading Michiru to start warming up to Hana.
• Violently Protective Girlfriend:
  • While she's Miko's stalker rather than girlfriend, Michiru is very protective of Miko. She saves Miko from getting hit by a truck and then makes sure to memorize the license plate number of the vehicle as it speeds off. Michiru even goes so far as to call an ambulance over a relatively minor injury Miko received. Interestingly enough, Michiru's protectiveness seems to extend to her ghost form, as her tentacles have a tendency to "feed" on any ghost that gets too close to Miko.
  • Her protectiveness remains in force even after properly integrating into Miko's friend group. When she thinks that getting knocked over by drunken metro commuter made Miko cry she's immediately livid, promising to hunt him down.
• What Is This Feeling?: She visibly trembles with excitement whenever she starts to daydream about Miko, and in at least one scene wonders to herself about what she feels for Miko, quoting the trope almost word for word.
• White Hair, Black Heart: Subverted. She has white hair and she's a creepy stalker with dangerous Yandere tendencies. However, Michiru isn't actually a bad person, just lonely and socially maladjusted. She starts to get better as she grows closer to Miko's group.
• Yandere: Subverted. After she sees Miko is much closer to Hana than her, Michiru thinks she must remove Hana to have Miko to herself. However, Hana's kindhearted and compassionate nature wins Michiru over and both become good friends.

Kyousuke Yotsuya

Voiced by: Yumiri Hanamori (JP), Suzie Yeung (EN)^{Other Languages} Atzin Padgett (LA), João Vitor Mafra (BR)

Miko's younger brother.

• Accidental Pervert: Played With. Because of an amusing misunderstanding, he thinks Miko has an abusive boyfriend and wants to check if her body has any hickies or bruises, he deliberately walks on her bathing to check, but gets embarrassed when he happens to walk in just as she's climbing out of the water.
• Animal Lover: He loves animals and gets very excited at the zoo.
• Big Brother Instinct: Inverted, since he's the little brother. He's very protective of his older sister and was worried when he thought Miko was in an abusive relationship.
• Entertainingly Wrong: While he notices his older sister started to behave oddly, he has no idea that the real cause is her becoming able to see ghosts. After talking about it with his classmates, Kyousuke thinks Miko's strange behavior is due to her getting a boyfriend. When following Miko at a library, he thinks she was looking at a book about kisses when she was actually looking at one about ghosts, furthering the misunderstanding. He also worries about Miko stress eating after noticing her eat the sweets and cup ramen she leaves out for Seto's familiars at night as offerings.
• Family Eye Resemblance: Kyousuke has narrow eyes with long eyelashes, just like his mother and older sister.
• Fun T-Shirt: Kyousuke is always seen in a t-shirt with an animal on it, captioned with its name in Romaji.
• Hidden Depths: He knows a lot about animal biology.
• Incest Subtext: He gets very flustered when his sister lets him join her in the bath. Also, an attendant at the clothing's store thinks Kyousuke acts like Miko's boyfriend.
• Mistaken for Superpowered: Because he's Miko's younger brother, Yuria thinks Kyousuke can see ghosts too, but he's completely normal.
• My Sister Is Off-Limits: He gets cagey at the thought that his sister might be in a relationship. When one of his friends at school tells him that "his sister's hot", Kyousuke tells him to put his eyes elsewhere.
• Nightmare Fetishist: In sharp contrast to his sister, Kyousuke is completely engaged when he and Mieruko are watching a TV show on paranormal sightings in the extras for Volume 2.
• Strong Family Resemblance: Flashbacks show that Kyousuke has a very close resemblance to his father's younger self.

Touko Yotsuya

Voiced by: Hitomi Nabatame (JP), Elizabeth Maxwell (EN)^{Other Languages} Karina Altamirano (LA), Ana Maria Morais (BR)

The mother of Miko and Kyousuke.

• Brooding Boy, Gentle Girl: She had this dynamic with Mamoru when they were teens. Mamoru was very gloomy and lonely because his ability to see ghosts isolated him from other people. Touko was the only one who was nice to him and became his Only Friend.
• A Day in the Limelight: Chapter 65 starts out as a flashback that reveals how Touko met her future husband.
• Gamer Chick: Touko is a skilled gamer and apparently is the best player among the Yotsuyas being the "unbeatable" champion of family video game night.
• Good Parents: She's a good mother to her children.
• High-School Sweethearts: Her relationship with Mamoru started when they were students around Miko's age.
• Lost Pet Grievance: She had a pet dog named François when she was younger. After François died, she felt sad and started wanting to see ghosts. Unbeknownst to her, François did become a ghost and currently haunts her house while hanging out with her late husband.
• Motherly Side Plait: Touko wears her hair in a loose ponytail over her right shoulder. Ironically, she isn't the dead one of Miko's parents.
• The Mourning After: She still dearly loves her husband after his passing. Made even sadder because she can't see his ghost even though he's still at their house.
• Satellite Family Member: Her only role is being Miko's mother and she doesn't get as much characterization or screentime as the rest of her family.
• Shared Family Quirks: When she was a teenager, she held the locket with Francois' picture like Miko holds Meme the Cyclops doll.
• Single Woman Seeks Good Man: She fell in love with Mamoru because of his kind, sincere and protective personality.
• Strong Family Resemblance: She looks like an older version of Miko with a different hairstyle. As a teenager, Touko looked exactly like her daughter.
• Tastes Like Friendship: She first became friends with Mamoru when she shared her lunch with him.

Mamoru Yotsuya

Voiced by: Kosuke Toriumi (JP), Michael Sorich (EN)^{Other Languages} Beto Castillo (LA), Juliano Lopes (BR)

The father of Miko and Kyousuke. He died sometime before the start of the series, but still hangs around the house as a ghost.

• All of the Other Reindeer: When he was a student, most of his peers avoided him and made fun of him because he could see ghosts. Touka was the only one who got close to him and wanted to be his friend.
• Blind Without 'Em: He had poor eyesight without his glasses. However, this actually helped him tell ghosts apart from living people because ghosts didn't look blurry to him when he took off his glasses.
• Brooding Boy, Gentle Girl: He had this sort of dynamic with Touko in their teenage years. Mamoru didn't have any friends and other students avoided him because he could see ghosts, which made him feel lonely. Touko was the first person who treated him kindly and became his friend.
• Connected All Along: It seems that the Old Man Spirit had been stalking Mamoru since he was a child, though in the form of a old woman from his perception.
• Dead All Along: Mamoru looks normal compared to the other ghosts, making the audience believe he's still alive until The Reveal that he's dead when Miko gives her pudding as an offering to his butsudan.
• Disappeared Dad: Played With. Mamoru died at some point before the start of the series, but he still hangs out with his family as a ghost in their house.
• Eating Lunch Alone: When he was a teenager, he used to eat lunch alone in the rooftop until Touko started joining him. It's implied that other students avoided him because he could see ghosts.
• Friendly Ghost: Unlike most ghosts in the series, Mamoru is very amicable and hangs out at his house to watch over his family.
• Good Parents: He speaks to his children like the kind father he is despite his son not being able to see him and his daughter having to pretend to not see him.
• Heroic Bystander: In chapter 51, he saves Miko's life when he warns her to not open the door, since she was about to get tricked by a ghost that was mimicking Yoh's voice right after the latter left with Michiru.
• High-School Sweethearts: He went to the same school as Touko and they started dating when they were around Miko's age.
• I See Dead People: Turns out he had the ability to see ghosts when he was alive.
• Mistaken for Badass: When defending Touko from two students that were harassing her, he managed to scare them off when they mistook the haunting presence of surrounding ghosts as Mamoru's Killing Intent.
• Nerves of Steel: Miko inherited her poker face from him as he also could see ghosts and needed to remain calm in front of them to have a normal daily life.
• Opaque Lenses: His glasses don't let us see his eyes. This was a hint that he had psychic powers just like the ghost family at the hospital.
• Papa Wolf: When a malevolent spirit tries to follow Miko and Kyousuke home, Mamoru actively blocks its path, and (with a little help from the Living Room Spirit) is able to intimidate it into backing down.
• Shrinking Violet: He was very timid when he was a teenager because his ability to see ghosts made it hard for him to interact with people.

Mitsue Takeda

Voiced by: Yukihiro Nozuyama (Kadokawa PV), Ikuko Tani (anime) (JP), Wendy Powell (EN)^{Other Languages} Isabel Martiñón (LA)

An old fortune-teller known as the Godmother of Downtown.

• Big Damn Heroes: She saves Miko from the spirits that surround her in the forest.
• The Bus Came Back: She left town after being unable to help Miko to live with her son, but reappears in chapter 24 to help Miko once more.
• The Confidant: She's the only person that Miko can really discuss her ghost troubles with.
• Cool Old Lady: Although she was first shown as a scammer, she has genuine powers and tries to help Miko with her situation.
• Eye Motifs: Her robe's hood is lined with eye patterns.
• I Was Quite a Looker: She was shown as a very beautiful young woman in the chapter 34 flashback.
• Jack of All Stats: As far as Psychic power goes, she can do a lot. She can sense ghosts, auras, and enchant items. She also appears to be rather mediocre at all of them. For example, she can't see ghosts as well as Miko and her enchanted items seem to be weaker than Romm's.
• Jerk with a Heart of Gold: Inwardly admits that she only cares about getting money, though she also sympathizes with Miko's plight and tries to help her as best as she can. The ghost of one of her former neighbors even calls her a good person in Chapter 24.
• Know When to Fold 'Em: Quit the fortune-teller business after her strongest charm is broken by the ghost following Miko.
• Mama Bear: After getting to know more about her and her unlucky situation thanks to her ability to see the paranormal, Mitsue becomes a very protective grandmother figure towards Miko, looking out for the younger girl as much as she can and giving Miko an outlet and a safe space to share her ghostly woes without fear. She even explicitly threatens both Romm and Seto on different occasions not to harm her or else there'll be hell to pay. While it isn't as pronounced, thanks to the strain between them, she is also motherly towards Romm and tries to look out for him whenever he needs help.
• Miniature Senior Citizens: She is a pretty short woman who stands around a head shorter than Miko.
• Not-So-Phony Psychic: She looks, acts, and even thinks like a typical scammer even though she possesses genuine powers.

Shindou Romm

• Anti-Hero: His motivation is good, but his method is shady. He had mentioned three plans to enter the Shrine which required Hana's aura to break through its barrier. Plan A is to convince Miko to bring Hana along. Plan B is to use stones to absorb some of Hana's aura so that her personal presence is not needed. Shindou remarks that he is very pleased than Plan C was not needed. Whatever it was, it could not have been good.
• Big Good: Being an active ghost hunter who arguably has the strongest psychic abilities among the cast, and has by far the most success of excising hostile spirits. This is best highlighted in the Anthology comic when Romm tends a make an appearance every time a particularly dangerous ghost needs to be taken care of.
• Broke Your Arm Punching Out Cthulhu: It's heavily implied that him defeating the Fox God has put some sort of curse on him, as afterwards he's shown largely holed up in his own home with a massive amount of magical defenses and wards set up to keep something out.
• Brutal Honesty: He bluntly tells Miko that his charms won't do much against the Fox God while asking her to keep its attention anyway.
• Catchphrase: "[This item] is brimming with power!"
• Chronic Hero Syndrome: Surprisingly, Romm took Towako's teachings to help people, both the living and the dead, to heart. The reason why he has such a great interest with the mountain shrine is because he once heard a girl asking for help, implied to be the spirit of a sacrifice victim who later became the Fox God.
• Covered with Scars: While he survived his brief encounter with the "old man" spirit, the after-effects of it are so bad that his body becomes covered with scars.
• Creepy Good: Miko's first impression of Romm is him acting like a creep and a lot of his behavior makes him suspicious. He's ultimately a good guy with heroic intentions, although his methods can be crafty.
• Creepy Shadowed Undereyes: He has distinct undereye shadows, making him look a bit creepier than other living characters.
• Exhausted Eye Bags: He has some noticeable bags under his eyes, which are implied to come from the horror he experiences due to being able to see spirits like Miko.
• Good All Along: He takes several actions to help Miko like sending Mitsue the picture of Miko and Hana at the shrine, which allowed Mitsue to save Miko, and giving Miko one of his exorcist stones. However, whether he's a good guy is still questionable for a while. He becomes more suspicious after it's implied he's willing to use his tour group as guinea pigs to test his items on a very dangerous spirit. Mitsue also didn't trust him since she knew he had an ulterior motive for helping Miko get rid of the Shrine God. At the end of the Shrine arc, it's revealed Romm's ultimate goal was freeing the ghost of the girl that was sacrificed long ago and was left trapped inside the shrine for centuries, waiting for someone to help her.
• Hiding Behind Your Bangs: His right eye is obscured by his hair and he's very shady most of the time, causing Miko and Mitsue to question how much they can trust him.
• Jerkass Has a Point: Mitsue is pissed that Romm brought Miko along, as she's concerned he may use her for selfish reasons. Romm argues that Mitsue's insistence on dealing with the shrine gods on her own while leaving Miko in the dark completely, considering they may come to "collect their debt" at any moment, is not very reassuring.
• More Powered Protégé: He was Mitsue's disciple when he was younger, but Romm's stronger ability to see spirits made Mitsue feel very unfit to be his mentor.
• Nerves of Steel: He has the same degree of paranormal vision as Miko and has had a lifetime to learn how to keep a cool head in the presence of terrifying ghosts.
• Not-So-Phony Psychic: He performs exorcisms and posts videos of them on Youtube, but most of his audience can't see the ghosts so they think he is a fraud, which isn't helped by him to keep telling them to subscribe and buy his overpriced exorcism gear. But a few people like Yuria and Miko can see the ghosts he's exorcising and know he's the real deal.
• Oh, Crap!: While investigating Michiru's Spooky Photographs, Romm senses something has gone terribly wrong when his metronome stops moving, the candles go out, and the rocks and flower he was using in his ritual suddenly rot away. He barely has time to prepare a defensive barrier before the spirit targeting him destroys the room and tries to kill him.
• Perma-Stubble: He has a small amount of facial hair on his chin. It helps to add to his sleazy appearance.
• Pet the Dog: He lets Miko keep one of his power stones since he feels she truly needs it and sends Mitsue a picture of the shrine.
• Post-Modern Magik: Use this liberally compared to everyone else. For example, he uses a smartphone and heavy metal music to repel ghosts. Other than that he's also shown to use the more mundane aspect of this trope, such as using the internet to promote his psychic business.
• Punny Name: His name translates as "Boy Wonder Rom", but it's pronounced the same as his moniker "Syndrome".
• Shameless Self-Promoter: In his online videos, he keeps telling people to subscribe and buy his exorcism gear.
• Signature Headgear: He wears an iconic top hat with buttons sewn on it.
• The Worf Effect: Romm is arguably Miko's most dependable ally. The fact that his first encounter with Old Man Spirit left him Covered with Scars and bedridden for ten days pretty much confirms that the Old Man Spirit is on a completely different level compare to other hostile ghosts that Miko had dealt with so far.

Oka Towako

Mitsue's mentor and Shindou's mother figure. A spiritualist who starred in her own occult television show, Towako parleyed some of that income into supporting her orphanage which catered to children with spiritual powers.

• Ass-Kicking Pose: Does the same pose after a successful exorcism as part of her television show with her right palm held up and her left hand in a fist with two fingers pointing to the right. This is how Mitsue and Shindou recognize her after she has been transformed into a servant of the Fox God.
• Big Damn Heroes: Intervenes when Mitsue and Shindou fall afoul of the Fox God.
• Cool Old Lady: Was a caring parental figure, active exorcist and media personality deep into old age.
• Eye Motifs: As part of her television costume. Mitsue presumably has the same patterns on her clothing as a tribute to Towako.
• Go Out with a Smile: After the Fox God is defeated and the soul is the sacrificed girl is freed, Towako's soul passes on with a smile.
• Heroic Sacrifice: Grabs the Fox God's bell meant for Shindou.
• Hime Cut: She had the traditional hairstyle and her exorcism style was similar to a shrine maiden's.
• Mama Bear: Goes out in full regalia to confront the Fox God who was trying to seize Shindou.
• Mentor Occupational Hazard: Presumably dies to protect Shindou from the Fox God.
• Mistreatment-Induced Betrayal: Forcing her to attack Mitsue and Shindou caused her to turn on the Fox God and attack her fellows.
• Not-So-Phony Psychic: Her television show was mostly Towako going around exorcising ghosts. While she admitted that some of those televised cases were actually fake, she did indeed perform exorcisms for many people in need. Her being a media personality might have influenced Shindou into doing his own webstreaming channel.
• Orphanage of Love: Used to run one where both Mitsue and Shindou were raised. It specifically cared for children with spiritual powers since others could not perceive the ghosts these children were reacting to.
• Parental Substitute: A mother figure to Shindou and to a lesser extent Mitsue.
• Posthumous Character: Died when Shindou was still a kid, though her spirit still lingers around as one of the servants of the Fox God.
• Reforged into a Minion: In the current day, she is one of the two servants of the Fox God.
• Tragic Keepsake: Her robe which is in Mitsue's keeping.

Seto

An elderly office worker who is secretly an exorcist. Unlike Romm and Mitsue, he can't see the form of ghosts and only hears their voices, which has made him much more nondiscriminatory and ruthless towards ghosts. He's accompanied by a group of ghosts in suits that give him information regarding other ghosts.

• Ambiguously Evil: Leaving his drive to exterminate ghosts indiscriminately aside, Seto always claims to have been on the side of humanity. But his interaction with Rom was tense, to say the least, and he says things that make him sound sinister after his chat with Miko in the karaoke room.
• The Archmage: In the context of the story, he's a terrifyingly powerful exorcist, that even Romm seeks his help. Unlike other exorcists who can only see ghosts and ward them off with charms, he actually has enslaved/bound several ghosts as his lackeys, and he could destroy ghosts without any tool other than his hand. Even discounting all that, in his introductory chapter he is able to Neck Lift Romm using only one arm.
• Badass Longcoat: He's a powerful exorcist and usually wears a black long coat.
• Chekhov's Gunman: It's revealed that the mysterious suited men keeping tabs on Miko are actually ghosts under Seto's control, meaning he knows she can see ghosts.
• Cool Old Guy: He's one of the oldest exorcists in the series, making him one of the strongest and most experienced.
• Cryptic Conversation: When Miko directly asks him what's going on with all the restless ghosts in town, he answers with a stream of mixed metaphors so bizarre that it leaves her more confused than before. It's not entirely his fault: everyone perceives spirits differently, so it's tricky to find a common frame of reference.
• Disability Immunity: The Old Man Spirit after Miko seems capable of attacking anyone who perceives him, even through a photo, as Romm and Pii-chan found out the hard way. The fact that Seto can't technically see the Old Man Spirit means that Seto is immune to the ghost's remote attacks and can safely look at photos of the Old Man Spirit.
• Disproportionate Retribution: He completely destroys the spirit of a young girl due to the mere suspicion that she was harassing one of his coworkers.
• Enemy Mine: Even though Mitsue and Romm don't trust him and dislike working with him, they agree to form an alliance in order to protect Miko from the Old Man Spirit.
• The Ever-Calm: He's always calm, even when he exterminates ghosts.
• Friend to All Living Things: Animals seem drawn to him, as seen when a sparrow gets attached to him.
• Good Is Not Soft: He's very well-liked by his coworkers for his polite and helpful behavior, but when it comes to ghosts, he's completely ruthless and immediately goes for a kill.
• Hearing Voices: He doesn't have the ability to see ghosts, but does hear them and thus has his ghost assistants tell him where to strike the ghosts.
• Nice Guy: He always looks out for his coworkers and helps them out whenever he can, making him well-loved and highly respected.
• Scars Are Forever: He has a large scar on his left hand which he got when he was young. It bleeds when he takes metaphysical damage.
• Summon Magic: He is apparently able to summon a large number of suit wearing ghosts that act as his spies.
• Teeth-Clenched Teamwork: Neither he nor Romm are on good terms, but they're both pragmatic enough to team up when their interests align or they need to trade favors.
• Touch of Death: His hand seems to be able to exorcise or even destroy spirit outright, all he has to do is grab the spirit.
• Van Helsing Hate Crimes: Unlike Romm, Seto has no sympathy for ghosts of any kind and sees them all as monsters that need to be exterminated for the sake of humanity. He even tries to exorcise Miko's father the moment he hears his voice. That said, there are some ghosts he won't try to a pick fight with, like the diner ghost.
• Weak, but Skilled: His ability to perceive ghosts is actually weaker than Yuria's as he can't see ghosts at all and only hears them instead. He has to rely on his lackeys to relay information and coordinates for his attack. Despite this, he's the most powerful exorcist shown so far, who can destroy instead of just warding the various spirits.
• What Measure Is a Non-Human?: He doesn't consider ghosts human, often comparing them to pests like rats.

Zen Toono

Voiced by: Yuichi Nakamura (JP), Yuka Terasaki (JP, child), David Matranga (EN), Kira Buckland (EN, child)^{Other Languages} Roberto Gutiérrez (LA)

A man who has dead cats following him. He later returns as a teacher at Miko's school.

• Accidental Misnaming: He has trouble memorizing the names of his students. At one point, he just avoids calling them by name altogether.
• Anti-Hero: It's eventually revealed that he's actually a selfless and heroic person who got hit by a car to save a kitten. However, it's also shown that he made an evil man disappear because he liked to kill cats for fun.
• The Atoner: He feels guilty about his pet cat being killed by his mother. His friend thinks Zen saves stray cats to atone for it, but would like he can take care of a cat out of love someday.
• Bad People Abuse Animals: He's heavily implied to be a regular cat killer. Actually subverted though, he's a genuine cat lover.
• Brutal Honesty: He tells Miko to her face that he thinks she's weird. After he hears Miko speak about freedom to his evil ghost mother, Zen takes it as her suggesting him to be more honest. He follows her "advice" by rejecting his neighbor's leftover stew as he finally admits he always throws it away anyway since he finds eating other people's food to be disgusting.
• Childhood Friends: His Only Friend is a vet who he has known since elementary school.
• Dull Eyes of Unhappiness: His regular expression is a dull look with shineless eyes.
• Good All Along: Despite being set up as a cat killer, it's revealed that he's actually innocent, as it's his dead mother whose been the source of the dead cats, while someone else was doing the dirty work. Still, it's heavily implied that he tortured a real cat killer to death.
• Good Is Not Nice: Despite Zen ultimately being innocent of the string of cat killings and becoming much more sociable after his mother's spirit is banished, he abducts the actual cat killer and makes him disappear.
• Inconsistent Spelling: His family name is sometimes spelled as "Touno".
• Introverted Cat Person: Because of his isolated childhood under his abusive mother, Zen isn't very sociable and doesn't seem to have friends besides his veterinarian childhood friend and fellow cat lover Gozuka. He still loves cats more than anything.
• Kindhearted Cat Lover: Doubly Subverted. It initially seems like Zen is a nice guy willing to adopt a stray cat. However, Miko sees dark, corpse-like spirits around him that heavily imply he kills cats. It is later revealed that Zen genuinely does love cats to the extent of getting hit by a car to save one.
• Lost Pet Grievance: When he was a boy, his mother killed the stray cat that he had taken in as a pet. Zen was so traumatized that he couldn't bring himself to adopt another pet even after his mother died, but he still tries to help stray cats and get them adopted by someone else. Once Miko gets his mother's ghost exorcized, she convinces Zen to adopt a cat.
• Odd Friendship: In the extra chapters, he ends up forming a bond with Gozuka, the man who got the cat he was denied previously, over their love of cats.
• Pay Evil unto Evil: He eventually finds the cat killer who was hunting the cats in his neighborhood. Zen tases the culprit and makes him disappear mysteriously.
• Reasonable Authority Figure: When Michiru's sister demands Michiru to be transferred to another class to separate her from Miko, Zen listens to Michiru's wish to stay in Miko's class and decides to not force her to change classes against her will.
• Red Eyes, Take Warning: Subverted. His red eyes are definitely meant to make him seem like a menace, but he's actually not dangerous at all. Except to zoosadists.
• Red Herring: The cat ghosts haunting him make Miko sure that Zen is the cat killer running around the town. Zen was actually innocent and was in fact trying to find the real cat killer. The cat ghosts were in fact cats that he failed to save from the cat killer and they followed him because they sympathized with his pain caused by his mother's ghost.
• Sheep in Sheep's Clothing: When he's first introduced, Hana thinks Zen looks more trustworthy than the guy with Face of a Thug, but the cat ghosts haunting him make Miko think otherwise. Turns out Zen never hurt any cats and would even risk his life to save a kitten from being run over. It was his abusive mother that was responsible for the cat spirits. Afterwards, Miko realizes that she judged Zen wrong.
• Sugar-and-Ice Personality: He acts cold and uncaring towards his students, but there's more to him than Miko thought at first. He's a Kindhearted Cat Lover at heart and is willing to risk his life to protect a stray kitten.
• Taking the Bullet: He gets hit by a car to save a stray kitten. Fortunately, he only comes out with a few injuries.

Living Room Spirit/François

^{Click here to see its original appearance}

A horse-like spirit that always hangs around Miko's ghost father at the Yotsuya household.

• All Animals Are Dogs: It looks like a huge horse-like monster, but it shows behavior similar to a dog's, such as licking and sniffing stuff and growling. Turns out it really was a dog when alive.
• Benevolent Abomination: It looks terrifyingly monstrous like most spirits in the setting, but its actions don't portray it as malicious. It mainly behaves as a companion and protector for Miko's ghost father.
• Canine Companion: His original form is a Schnauzer dog that belonged to Touko. After his death, he became Mamoru's companion as Mamoru could see him while Touko couldn't. He's still keeping Mamoru company after he became a ghost as well.
• Crouching Moron, Hidden Badass: Despite its halfway terrifying yet goofy-looking appearance, the Living Room Spirit appears to be absurdly powerful, as it is capable of fighting back against and even intimidating Michiru's tentacles when previously, the tentacles had no issue curbstomping every other ghost it had encountered. This is an early hint that Michiru's tentacles aren't actually evil.
• Dark Is Not Evil: It looks terrifying and threatening, but it actually protects Miko's ghost father, by pulling him back from getting hit by Seto's Touch of Death.
• Guardian Entity: It's implied to be some sort of guardian for Miko's father, as seen when it stops Michiru's ghost tentacles from absorbing him. It's later revealed that his true identity is François, Touko's pet dog who died long ago, meaning that he became a guardian spirit to Touko's family.
• Mix-and-Match Critters: It has a large horse-like body with humanoid face and arms. Apparently, it used to look like a regular dog when it first started protecting Touko and Mamoru when they were still students.
• Slasher Smile: Its facial expression is locked in a scary grin that goes from ear to ear.
• Tombstone Teeth: It sports a Slasher Smile replete with huge square teeth.

Gozuka's Cats

A pair of cat ghosts who were Gozuka's beloved pets when alive.

• Bakeneko and Nekomata: After their deaths, Gozuka's cats became nekomata, as evidenced by both having two tails, and apparently became guardian spirits who watch over him alongside his late wife.
• Parrot Pet Position: They're often sitting on Gozuka's shoulders.

Gozuka's Wife

Gozuka's late wife. Unbeknownst to him, her spirit is still at their apartment to watch over him.

• Cute Ghost Girl: She's one of the few humanoid ghosts to not have any grotesque elements to her at all. Instead, she's still as pretty as when she was alive.
• Delicate and Sickly: According to Gozuka, she was very frail and sickly in life, so she spent all her time in the hospital.
• Eyes Always Shut: She keeps her eyes closed at all times.
• Friendly Ghost: Similar to Miko's father, she's one of the very few ghosts who isn't creepy or malicious. She still hangs around in the world of the living to lovingly watch over her husband and make sure he's living happily even after her death.
• The Lost Lenore: Gozuka loved her deeply and still does after her death.
• No Name Given: Her name isn't given.
• Perpetual Smiler: According to Gozuka, she was always smiling despite her sickly condition. Even after her death, she's still smiling.
• Ugly Guy, Hot Wife: Her husband has a Face of a Thug that easily scares off people, while she's a beauty both in life and death.

Train Spirit

An axe-wielding spirit that appears on trains. It seemingly hunts other spirits that hide inside human passengers.

• Badass Longcoat: He appears to be a quite powerful spirit and his body is covered by a long raincoat.
• Bandaged Face: His head is wrapped in bandages, showing only his eyes, his wide, lipless mouth with braces on his upper teeth and two extra mouths on the sides of his head.
• Barbaric Battleaxe: He wields a large axe that he violently swings at humans, but he only hurts the ghosts hiding inside them. Miko is still terrified of getting an axe on her face, even though it phases right through her.
• Hunter of His Own Kind: Hunts down other ghosts that enter his train, using his axe to pull them out of humans they've hidden inside of.
• In the Hood: He wears a raincoat and covers his head with a hood, making him look even more ominous.
• Shinigami: Seemingly one of several encountered in the series. Even though he's a spirit himself, he hunts ghosts hiding inside of the train he haunts and puts them in his bag.

The Fox God

Voiced by: Masashi Yamane (JP)

^{Click here to see its true form}

• Animalistic Abomination: It looks like a giant fox-like creature with a Lamprey Mouth and horns. Its true form is even worse, a human-fox thing with a permanent rictus grin and jingle bells for eyes.
• Arc Villain: Serves as the first main antagonist of the series from Chapters 11 to 39 after Miko and Hana made an accidental Deal with the Devil with the powerful spirit.
• Asian Fox Spirit: A monstrous creature that resembles a nine-tailed fox, but it's actually a very powerful spiritual entity that's worshipped as a deity.
• Deal with the Devil: Miko's innocent prayer at the shrine results in her making one with it on accident.
• Deity of Human Origin: Turns out to be a shrine maiden who was ritually sacrificed to be transformed into a god.
• Deus ex Machina: Shows up out of nowhere to devour a spirit that was terrorizing Miko and Hana. It then continues to send its shrine maidens to protect her from any spirits that try to harm her. It is later revealed that Miko unknowingly made a deal with it.
• Disc-One Final Boss: The Fox God is the first true main antagonist of the story for almost 30 chapters before she is finally laid to rest thanks to the efforts of Miko, Mitsue, and Romm by Chapter 39.
• Eldritch Abomination: Far and away the most unearthly spirit in the series, residing in a shrine on a mountain invisible to those who couldn't see ghosts, assisted by a pair of shrine maiden ghosts, and as Miko finds out, it answers prayers at a high price. Mitsue says that though it's called a god in local folklore, no one actually has a clue what this thing even is.
• Exotic Eye Designs: Has jingle bells for eyes.
• God of Good: Helps Miko by protecting her from spirits, killing the one that Miko and Hana had brought to its shrine and then sending its shrine maiden ghosts to destroy any ghosts that attack her to her up to three times. Turns out to be a subversion, as Miko actually made a deal with it unintentionally, where it would protect her from hostile ghosts thrice before she has to pay up. The only words when it asks for its repayment that Miko can make out are "sacrifice of flesh and blood".
• Multi-Armed and Dangerous: Has rows and rows of humanlike arms holding innumerable bells in its true form. For extra creepiness factor it also possesses at least one arm inside its mouth.
• One-Winged Angel: After it tries to devour Miko, the god sheds its skin to reveal a true form that looks so horrific that the usually deadpan Miko drops to her knees in absolute terror.
• Soul Jar: Its human self's skull, sealed inside its shrine. Once Miko accidentally destroys it, it promptly reverts from a fox monster back into a shrine maiden and starts to move on.
• Tears of Joy: She cries when she's finally allowed to pass on from the world of the living, no longer bound to the shrine.
• Villainous Rescue: It kills off the river-dwelling ghost that had been trying to kill Hana, as she was the payment for Miko's unwitting Deal with the Devil.
• Was Once a Man: Originally a shrine maiden who was strongly implied to be the subject of a Human Sacrifice ritual.

Zen's Mother

Voiced by: Mai Nakahara (JP), Morgan Garrett (EN)

^{Click here to see her when she was alive}

Zen's emotionally abusive mother, who now haunts him as a monstrous ghost.

• Abusive Parents: She was emotionally abusive towards Zen, didn't let him have a life outside of schoolwork, and killed the stray cat he secretly took in as a pet.
• Bad People Abuse Animals: She killed a cat Zen brought in one time when he was young, to punish him for keeping secrets from her and doing something that wasn't studying. Her ghost still haunts him, and keeps the dead cats he regrets being unable to save bound to him.
• Berserk Button: She hated it when Zen didn't share information with her, telling him he was just like his unfaithful father.
• Control Freak: Zen could not have anything independently of her, to the point she'd yell at children passing by her house to stay away if she thought they were his friends. She still has this attitude as a ghost, bellowing at her son's students not to look at him.
• Education Mama: She forced Zen to study all day and never let him spend any time with other kids. When he got 98 out of 100 on a test, all she did was berate him for not getting a perfect score.
• Eerie Pale-Skinned Brunette: As a living human, she had dark hair and her skin was extremely pale, bordering on gray. This made her look creepy even before she became a ghost.
• Family Eye Resemblance: Zen got his dull, lifeless red eyes from her.
• Ghastly Ghost: After dying, she became a horrifying spider-like ghost that continues haunting her son, roaring furiously at anyone who merely looks at him.
• Gonk: Downplayed. Her face is thin and elongated, she has dark iris with no pupils and a set of Tombstone Teeth. While she's not exaggeratedly hideous, her looks take a turn for the creepy and unnatural compared to other character designs in the series. It's even worse in the manga, where she's drawn in the same uncomfortably detailed style as the ghosts while she's still alive.
• Hate Sink: She's a controlling abuser who made her son's childhood miserable and killed the only pet he ever had. Then she keeps haunting him as a terrifying ghost until Miko makes some shrine spirits forcibly exorcise her.
• Incest Subtext: The odd specificty of the scorn she heaps upon her young son, calling him a promise-breaking malicious liar who betrays the trust of the woman who loves him more than anyone else in the world, certainly suggests she sees Zen as an emotional proxy for her cheating ex-husband.
• My Beloved Smother: Even in death, she's a deranged Control Freak out to maliciously maintain a vise-grip on her son's life.
• Spider People: As a ghost, she has spider legs and a spider-like mouth.
• Unnamed Parent: We never get to hear her name.
• Walking Spoiler: Her backstory with Zen reveals he isn't the cat killer Miko thought him to be.

A mysterious spirit with tentacles that has attached itself to Michiru's body. It has the ability to stab and absorb ghosts in order to protect Michiru. It's later revealed that the spirit is actually the first "Pii-chan", Michiru's pet caterpillar, and possessed her body so it could protect her.

• Androcles' Lion: Pii-chan is actually the first pet caterpillar that Michiru kept as a child, having taken it home after saving it from a bird. Michiru didn't know that Pii-chan was really a forest spirit and while she thinks it merely disappeared, it actually attached itself to her body so it can protect her out of gratitude for her protecting it back then.
• Combat Tentacles: Pii-chan's tentacles can stab and absorb ghosts that get close to Michiru.
• Curb-Stomp Battle: Most spirits that pose any threat to Michiru end up being torn apart by Pii-chan in seconds. In one notable case, an enormous ghost attempts to rip apart a tentacle clinging to Miko while Michiru is busy talking in another room, its efforts are treated as so nonthreatening that the tentacles don't even bother reacting until Michiru walks out into the hallway, whereupon the ghost is immediately shredded.
  • In Chapter 64, the roles are reversed, with Michiru's tentacles being instantly disintegrated by the Old Man Spirit.
• Curb-Stomp Cushion: During Michiru's confrontation with Hana, a monstrously large spirit, related to the similarly enormous one that tried to rip her tentacles from Miko, attacks her in revenge. This time, possibly due to Pii-chan being distracted with preparing to attack Hana (as it coils into a spear-like limb surrounding the hand that Michiru is holding a pencil in), the giant actually manages to cause some damage by successfully ripping some tentacles away. However, Pii-chan barely acknowledges the assault due to being so focused on Hana and after being supercharged by Hana's aura, it swells to such enormous proportions that its spiky tentacles literally take up the entire room, crushing the attacking spirit instantly.
• Dark Is Not Evil: Pii-chan is very ominous in appearance, but turns out to be an entirely benign Nature Spirit that's trying to protect Michiru.
• Empathy Pet: This is effectively how Pii-chan functions in Miko Vision. Its tentacles will writhe and poise themselves to "stab" someone if Michiru gets upset with them, they will reach out for things she wants, like a caterpillar-shaped pastry, and they will gently wrap themselves around Miko while walking together since Michiru likes her.
• Eyes Do Not Belong There: Pii-chan has eyes attached to the end of its tentacles.
• Guardian Entity: Pii-chan only moves offensively when Michiru is in danger, as they freely lash out and consume any ghost that wanders close to her.
• Know When to Fold 'Em: When Michiru formally visits Miko's home, Pii-chan attempts to attack the ghost of Miko's father with one of its tentacles, only for it to be effortlessly stopped by the Living Room Spirit. Both it and Pii-chan have a stare down until the latter backs off.
• Nature Spirit: Pii-chan is a forest spirit, or kodama, that has the ability to absorb evil spirits to protect humans.
• Symbiotic Possession: Pii-chan is the first caterpillar Michiru adopted, and it bonded itself to her after she saved it from a crow, becoming a Guardian Entity to protect Michiru from evil spirits. The real reason why Pii-chan covered her entire head was that Michiru couldn't bring herself to fully open up to other people until Miko, Hana and Yuria fully accept her for who she is and become her first true friends.
• The Worf Effect: Pii-chan has curbstomped just about every other spirit it has encountered, yet it's instantly defeated by the Old Man Spirit. This shows that this "old man" is on a whole other level in terms of power.

A spirit resembling an older man that seems to appear in many photos that Miko has taken.

• Appearance Is in the Eye of the Beholder: Miko sees it as a creepy middle-aged man, while Romm implies he sees something completely different and more disturbing. In Chapter 69, it is revealed that it was the same old lady spirit haunting Miko's parents when they were younger, as perceived by Miko's father and François' spirit.
• Brown Note Being: Romm cannot look at even a picture of it without it attacking him. He saw it once by mistake, and doesn't think he'll survive a second visit from it.
• Curb-Stomp Battle: Michiru's tentacles are immediately taken out by it, causing Michiru to collapse. It wasn't even really a fight, rather her tentacles seem to be aware that something is terribly wrong with the last accident that nearly befell Miko, extruding their eyes to look around before they immediately start withering and bleeding.
• The Dreaded: Whatever it is, it's incredibly dangerous. Despite preparation when examining the photo, Romm was still affected to the point he was out cold for around 10 days under Mitsue's care. When Michiru's tentacles are alerted to its presence they immediately start to bleed and wither, causing Michiru to collapse. Romm and Mitsue state they can't do much against that thing, as a result they have to rely on Seto despite disliking his methods.
• Eldritch Abomination: It's clear that only Miko sees this spirit as a human, while other people who have had the misfortune of seeing it see it as something completely different. In addition, Seto pretty much lays out that this spirit is completely incomprehensible, even to powerful and experienced exorcists like him, Romm, and Mitsue. They have no idea on how to actually defeat it, so the best they can do is try to avoid it or ward off its attacks.
• Grim Reaper: Whatever it really is, its human-ish form is holding a sickle whenever Miko sees it. Miko herself is afraid that it's the personification of Death itself.
• Hereditary Curse: He originally haunted Miko's parents. After Mamoru's death, he switched his target to Miko.
• He Was Right There All Along: It can be seen in the background of many manga panels just standing in the crowd.
• Humanoid Abomination: Miko sees it as a fairly humanoid spirit, but it's really a terrifying being that causes even Romm to feel fear.
• Make It Look Like an Accident: It has repeatedly appeared just before or after a deadly accident nearly befalls Miko. First appearing from across the road as a truck nearly runs her over, and the second time a watching from around the corner as a vase nearly falls upon her head. The nature of the second incident heavily implies that these are not natural events and it is deliberately engineering these circumstances in an attempt to kill Miko, as she's lured into the path of the falling vase by what she thinks is Hana, but when the panel shows Michiru's point of view there's nobody there. Furthermore, Michiru saves Miko's life on both occasions, and the second time prompts it to lash out at her.
• Nothing Is Scarier: While Miko only perceives the spirit as a regular middle-aged man holding a sickle, Romm sees it as something completely different and won't even tell Miko how it appears to him, only warning her to stay away from it at all costs.
• Stalker Without a Crush: Has been following Miko since childhood, and it definitely doesn't have any benevolent intentions in store for her.

• Animal Lover: Aoyama loves animals.
• Combat and Support: They are the Support to Seto's Combat. Since Seto can't actually see the spirits, he needs these guys to act as his "eyes" and direct him towards the other ghosts so that Seto may exorcise them.
• Creepy Good: Despite being spirits, they are highly considerate of Miko's personal space and pretty much act like humans. They even go out of their way to nudge Miko when there's an opportunity to easily help someone, or protect others nearby from spirits by themselves without being asked to.
• Face Framed in Shadow: Their faces are constantly covered in darkness. A couple close-up shots show that they have rather uncanny-looking facial features which include having maws for mouths.
• Familiar: They serve as Seto's personal assistants and vigilance system.
• Fedora of Asskicking: As part of their sharply dressed attire.
• Humanoid Abomination: From a distance, they look like well-dressed men with their faces covered in shadows. But what little can be seen of their faces shows that they are clearly not human.
• Killed Off for Real: At the end of Chapter 70, Reida is lured away and apparently destroyed by what is presumably the Old Man Spirit.
• Lamprey Mouth: They have lamprey-like mouths which they reveal when they eat or whisper into Seto's ear.
• The Men in Black: Their theme, sharply dressed ghosts in suits and hats who act as familiars to the powerful exorcist, Seto.
• Mundane Utility: While bodyguarding Miko, they initially try to help her with her day to day life at school, from giving her the correct answers to her tests (to her chagrin) to telling her the location of lost objects. Eventually, they learn how to give Miko more personal space and privacy.
• Sinister Surveillance: They keep Seto up-to-date on the goings-on in their town and Seto can use them to tail certain individuals.
• Sweet Tooth: They have a particular fondness for sweets.
• Talking the Monster to Death: When they see a giant grasshopper spirit planting eggs on humans, they apparently say some harsh words to the insect until it's left cowering in the middle of the street.
• Trademark Favorite Food: They enjoy sweets, except Boutte who likes ramen in particular.

Tooru

A lion who recently died at the local zoo.

• Handicapped Badass: He's blind even after becoming a ghost, making it hard for him to fight the mantis ghost until he gets help from Aoyama.
• Horse of a Different Color: Aoyama rides Tooru's back while giving him instructions on where the mantis ghost is.
• Papa Wolf: Even after death, he continues protecting his mate and cubs from the mantis ghost trying to feed on his mate.

Gozuka

Voiced by: Atsushi Imaruoka (JP), Brent Mukai (EN)^{Other Languages} Dafnis Fernández (LA)

A man who comes to adopt a kitten Miko and Hana found. Even though he looks scary, Miko lets him keep the cat because she can see two ghost cats who love him.

• Bald Head of Toughness: Subverted. He's a bald guy with a Face of a Thug, causing people to find him scary. The truth is he's a Kindhearted Cat Lover who would never hurt a fly.
• Face of a Thug: He looks like a scary Yakuza, making people think he's going to hurt them. Miko, who can see the cat spirits next to him, knows he's just a good man who loves cats.
• Kindhearted Cat Lover: He had two pet cats who still hang around him as ghosts because he was that good to them. He treats his new cat Nyansuke very well too.
• The Mourning After: He still loves his late wife and offers her flowers in the anniversary of their wedding.
• No Full Name Given: An extra chapter names him Gozuka, but it's unknown whether that's his given name or surname.
• Odd Friendship: He forms an unexpected friendship with Zen, thanks to their cats getting along.
• Rugged Scar: Subverted. The scars in his face make him look like a dangerous thug. However, they're actually a result of his cats scratching him.
• Tragic Keepsake: He still has a four-leaf clover that his late wife gave him for good luck.

Yajiro Tanaka

The true cat killer around Zen's apartment. Zen finds him after getting out of the hospital and confronts him, making him go missing.

• Bad People Abuse Animals: He tortured and killed cats for fun, and was about to kill a mother cat and her kittens before Zen finally found him.
• Killed Offscreen: One morning after Zen tazes him, Miko walks by trash bags where a ghost resembling Tanaka sticks his head, an arm and a leg out. Each part from a different bag.
• Named by the Adaptation: Played With: His name is in the manga, but hard to make out. The anime clarified it.

Yoh Ichijou

Michiru's older sister and manager.

• Bathtub Bonding: At home, she takes baths with Michiru and does nothing but talk about her while they're in the bathtub. Yoh seems to see it as bonding activity between sisters, but Michiru clearly isn't comfortable with it.
• Big Sister Instinct: She's highly protective of her younger sister and is always trying to look out for her.
• Clingy Jealous Girl: Subverted. At first, it's made look like Yoh wants Michiru all to herself and doesn't approve of her forming personal relationships outside of her. Turns out the real reason is that Yoh is well aware of Michiru's obsessive behavior towards her friends and she's trying to limit Michiru's social interaction because her sister might end up hurting people, as it has happened before.
• Control Freak: She tries to supervise everything her sister does, from what she eats to the people she hangs out with. After she realizes Michiru has found good friends she loosens up on this behavior.
• Freudian Excuse: Her parents died when she and Michiru were still young, and Michiru's problematic behavior made the job of raising her even harder for Yoh. She ended up developing very controlling behaviors towards her sister in an attempt of keeping her safe from people, and other people safe from her as well.
• Good All Along: Initially, Yoh appears to be controlling and possessive towards her younger sister, trying to intervene in her attempts to become closer to Miko and spend time with new friends. Turns out Yoh isn't doing this out of malice, but because she doesn't want Michiru to come out hurt if her new social relationships end up badly again. Once she realizes Miko, Hana and Yuria have accepted Michiru, she allows them to become friends.
• Incest Subtext: At home, she doesn't leave Michiru alone for one second, even taking baths with her, until Michiru goes to bed and Michiru seems to be all she ever talks about. For extra creepy effect, the walls of their apartment are covered with photos of her with Michiru as if it was a Stalker Shrine.
• Intimate Hair Brushing: Subverted. She likes brushing Michiru's hair and Michiru lets her do it to keep her happy, but this happens after it's been established that Michiru hates it when people touch her hair. Therefore, the scene actually serves to show how Yoh either doesn't know or care about Michiru's personal boundaries.
• Kindhearted Cat Lover: She loves cats, leading her to start bonding with Zen.
• My Beloved Smother: She's Michiru's older sister instead of her mother, but fits perfectly otherwise. She's extremely controlling and clingy towards Michiru, often suffocating her with overbearing attention. When Michiru tries to have a sleepover with Miko, Yoh runs through a storm to pick up her sister and take her home, as she would worry too much if she let Michiru stay the night at a stranger's house. After she realizes Michiru has found real friends in Miko, Hana and Yuria, she loosens up and tries to stop being overprotective.
• No Sense of Personal Space: When she's alone with Michiru, she just can't keep her hands off her sister. Michiru puts up with it, but the spirit bonded to her shows Yoh's behavior upsets her a lot.
• Not Quite the Right Thing: Ever since Michiru was a child, she displayed odd behavior that made people find her weird and creepy. Wanting to protect her sister from being hurt, Yoh tried to do everything to keep Michiru socially isolated. Unfortunately, this only resulted in Michiru getting overly attached to the few friends she could make, causing her to quickly show obsessive and possessive behavior that turned her into a danger to the people who she thinks will steal her friends away.
• Odd Friendship: She becomes surprisingly good friends with Zen, Michiru's teacher.
• Parents as People: Yoh deeply cares about Michiru, but she had to take up the responsibility of raising a young child when she was just a teenager herself. Michiru's odd behavior also made it especially hard for Yoh to handle her. To protect her sister from being hurt by others' rejection, she started to isolate Michiru from her peers and tried to make her spend all her time with only her, but this only resulted in Michiru feeling suffocated. After she sees Michiru has finally found friends who accept her for who she is, Yoh stops acting overprotective and allows Michiru to socialize more.
• Promotion to Parent: She has acted as Michiru's guardian and caretaker ever since the death of their parents.
• Stalker Without a Crush: Even after she decides to rein in her Control Freak behavior towards Michiru, she still has a habit of worriedly tailing after Michiru while she's hanging out with Miko.

Aya Mikumo

A girl who went to the same elementary school as Yuria. She runs into Yuria again at the Lambda Rabbit Festival and Yuria tries to help her when she sees she's haunted by a ghost that has attached itself to one of her legs.

• The Cassandra: She is convinced that her injured leg is cursed, but none of her friends believe her, which lets her realize how much of a jerk she was to Yuria in school.
• Gyaru Girl: She has the typical image of a gyaru because of her light hair, tanned skin, and fashion sense, such as the short shorts and jewelry.
• Jerkass Has a Point: While she still unfairly bullied Yuria when she was young, Aya does point out that regardless of whether ghosts exist or not, Yuria's pushy personality and Chuunibyou tendencies didn't really help endear her to the rest of her class.
• Jerkass Realization: Now that Aya knows ghosts are real, she realizes she was wrong in mocking Yuria when they were children.
• Reformed Bully: She used to be one of the girls who bullied Yuria because she didn't believe her claims of being able to see ghosts, but she seems much nicer in the present.
• Tastes Like Friendship: She gives Yuria a candy apple to thank her for saving her from falling down the stairs, and also to make peace between them.

Hitoe

The owner of an antique store that Miko visits. She's friends with Mitsue.

• Ambiguous Situation: The ghost dog guarding her shop may or may not be the ghost of her cat, given that both were able to tell where she hid the prize.
• Beautiful All Along: Miko is creeped out when she first sees Hitoe because her face is completely obscured by her hair, giving her a look similar to a Stringy-Haired Ghost Girl. When her face is revealed, she's actually beautiful.
• Hiding Behind Your Bangs: Her long, messy hair completely obscures her face, giving her an unkempt look that makes Miko nervous at first.
• Irony: She's allergic to dogs, but doesn't know that her shop is being guarded by a ghost dog.
• Kindhearted Cat Lover: She used to own a cat and talks about it fondly to Miko.
• Right for the Wrong Reasons: She challenges Miko to find the Shining Lambda Rabbit among her lucky bags. When Miko keeps guessing it right, Hitoe figures out that Miko got help from a ghost, but she thought it was her deceased cat rather than a random ghost dog that was at her shop.
• Statuesque Stunner: She's about as tall as Michiru and just as beautiful.
• Unkempt Beauty: She's attractive even though she has disheveled hair that falls over her face and is dressed only in a haori and her underwear.
• Younger Than They Look: She initially gives the impression of being old because her hair covers her face and she seems to be about Mitsue's height. In reality, she's a very attractive young woman and only looks short because she's hunched over during cold weather.