The Go Home Club
Voiced by Maria Naganawa
A quick-witted and strong-willed second-year student, who can be heard talking about being much more in need of returning to the real world than the protagonist in the beginning. She joins the Go Home Club during the Hot Springs section.
Ayana appears overall calm and sweet, which she easily displays whenever around other women. But she reacts in horror and even with violence when a man is near her, let alone approaches her. Her Catharsis Effect awakens without Aria's help, when Ayana realizes that Stork has been peeping on her and the others in the female bathhouse.
Her Character Episode has her reluctantly agree to the protagonist's suggestion to work on her issues regarding men. They begin by having her try to have conversations with the male members of the club without having her become violent or terrified. Baby steps are already too much to hope for right off the bat, though.
- Anguished Declaration of Love: The bad ending has her exclaim through sobs that she loved the female protagonist.
- Badass Gay: Her Character Episode makes it clear that she's fallen for the female protagonist, even mentioning marriage. And she can kick some serious ass, with or without her Catharsis Effect.
- Blood Knight: Relishes in beating male opponents, especially Stork.
- Does Not Like Men: Men cannot even be in her vicinity without her shaking with fear and disgust, and even hatred, leading to her often shoving them out of her way before she runs away screaming. She became an idol singer to get over her dislike of men, but things only got worse when Kouki Tadokoro assaulted her friend during a meet 'n' greet. Ayana was so distraught over this display of violence that she couldn't even stand to look at her father and brother anymore. The male protagonist isn't exempt from this, either, though she does try to work at least being able to tolerate his nearby presence.
- Dual Boss: Fought alongside Mifue on the Musician route.
- Establishing Character Moment: She escapes from some digiheads and then runs head-first into the protagonist. If the protagonist is male, Ayana will attempt to apologize before realizing that he and Shogo are right in front of her, then shoves them away and flees while screaming. If the protagonist is female, Ayana will apologize for bumping into her, then Shogo tries to check up on Ayana and she screams, calling him a pervert, and then shoving him away and fleeing.
- Flower Motifs: Japanese Snake Gourd and Carnation. They adorn her stake, and the hem of her dress has a snake gourd depicted on it. The snake gourd is part of the nightshade family, meaning it blooms in the night and shuts itself up in the early morning, which could indicate her getting along well with women, but freezing up around men. The red carnation she wears represent love and admiration, perhaps indicating her feelings for the female protagonist and maybe even Himari.
- Gamer Chick: The player can ask Ayana in a WIRE conversation which genre of videogames is her favorite, with her answer depending on the protagonist's gender. A female protagonist will have her answer role-playing games, while a male protagonist will have her answer punching games.
- Gay Option: For the female protagonist, with her being the most explicit option when compared to Suzuna, who ends up seeing the protagonist more as emotional support.
- Hikkikomori: After Himari was assaulted by Tadokoro and she eventually committed suicide, Ayana practically locked herself into her room and refused to leave the house for years.
- If It's You, It's Okay: Non-romantically done with the male protagonist, when Ayana mentions in her Character Episode that he's the only male she feels comfortable around. Completing her Character Episode has her flat-out refer to him as a friend.
- It's All My Fault
- Blames herself when she learns that her father had collapsed and become ill sometime after Ayana got taken to Mobius. She believes that her treatment of him, and having him worry over her suffering from Astral Syndrome, was what caused his health to deteriorate. She wants to return to reality, so she can apologize to him.
- Going through the Musician arc and exiling Eiji from the Go Home Club leads to Ayana blaming herself for not realizing what a horrible person he was from the beginning. Especially since she had met him in the real world, as he had been Kouki Tadokoro's lawyer, but failed to recognize Eiji.
- Kick Chick: Some of her attack skills involve her drop-kicking the enemy.
- Lipstick Lesbian: A very feminine and girly type of woman that strongly hates men, and is romantically interested in women. She even develops a huge crush on the female protagonist.
- Older Than They Look: She's 27 in the real world, while only 17 in Mobius.
- One-Gender Race: Admits in her Character Episode that, as part of μ wanting to make her happy, Mobius was inhabited by only women when she first came there.
- Precision F-Strike: The English version of the bad ending has her call the protagonist out on pulling 'this shit'.
- Sequential Boss: The bad ending has her fought alongside Mifue and Suzuna as the second round.
- Ship Tease: Gets a ton with the female protagonist. It stops being teasing and gets flat-out mentioned when finishing her Character Episode, with Ayana mentioning that people of the same sex can get married nowadays, and then bluntly asking the protagonist what her type is.
- Shock and Awe: Her Catharsis Effect weapon is a stun gun in the form of a shield, and her horns crackle with electricity. Her Overdose attack has her slam the shield into the ground, electrocuting the opponents.
- Theme Naming: Her attack skills are named after various species of slugs. Kotaro lampshades this oddity when they get into a fight at one point.
- Tomboy and Girly Girl: The girly girl to the female protagonist's tomboy.
- Tranquil Fury: Reacts this way when Stork attempts to justify his being a peeping tom to her, with her calling him the worst kind of guy, and the type that causes harm to women everywhere. When the two meet the next time, she's much more vocal before beating the daylights out of him.
- "Where Are They Now?" Epilogue: She is shown at the train station, implying that she's on her way to see her father. She is also slowly working on being okay around men.
Voiced by Kenji Akabane
A third-year student that is very handsome, friendly, intelligent, and an all-round gentlemen that leads to some people, including himself, calling him Mr Perfect. He's already aware that Mobius isn't real, and decides to tag along when the Go Home Club goes after Stork.
Eiji comes across as a mature and intelligent man that won't let little things bother him, though he has another side to himself that shows him to be anything but calm. His Catharsis Effect awakens in the Sun Temple section when he's infuriated over being stuck in Mobius and the Go Home Club's actions being too slow to return them all to the real world already. With his Catharsis Effect awake, he shows a sadistic side to his personality.
His Character Episode has him looking for a man called Kouki Tadokoro, who Eiji knows is in Mobius. He claims to have been personally wronged by Tadokoro in the past, and wanting to get even with him. Eiji eventually admits that he's not the CEO of a company as he claims, but was a lawyer, and is hoping to atone for his actions as Tadokoro's lawyer in a previous matter. Eiji's Character Episode is unique in that the events and its conclusion alter slightly, depending on the player having taken up or rejected Thorn's offer to join the Ostinato Musicians.
- Amoral Attorney: He lied about being a CEO in the real world, when he's actually a prosecuting attorney. He comes from a family of lawyers, but Eiji felt like he had control over a person's life being saved or ruined, and he abused his position repeatedly. He embezzled funds from several of his clients and killed anyone that figured it out, including Kuchinashi's family and his own father.
- Berserk Button: Gets frustrated and violent when trapped in confined places. He admits it's because he was kidnapped as a child by Tadokoro and was locked into a room with no food or water for three days. That's a lie. His reaction comes from having been imprisoned and stuck in a jail cell in the real world for the past five years.
- Bitch in Sheep's Clothing: Turns out that his calm and gentle facade is nothing more than that. He keeps his mask up well, until his Catharsis Effect awakens, and he feels free to show his sadistic and violent side during battles.
- Classy Cane: His Catharsis Effect weapon is a cane that can turn into a whip.
- Consummate Liar: Tends to lie about things. The ones mentioned on-screen are his lying about his job in the real world, as well as his relationship towards Tadokoro and Kuchinashi.
- Dual Boss
- Fought alongside Kotono on the Musician route.
- Also ends up fighting alongside Kensuke later on, if Kotaro died during the Shadow Knife arc.
- Duel Boss: The Musician route has the protagonist learn the true extent of Eiji's actions and just how twisted he is, leading to them confronting him. Eiji will fight the protagonist in an attempt to kill him in an effort to silence them.
- Expy: He works on the side of the law for twisted reasons, believes himself to have more power than he actually does, and is willing to kill anyone that threatens to expose him. Sounds a lot like Adachi.
- Faux Affably Evil: Once his Catharsis Effect awakens, his polite and calm demeanor just makes him come across as worse when he shows his true colors. He will lie through his teeth and do anything to get his way, only to gleefully backstab them the next second. He bargains with μ and Kuchinashi to be released from the cage, then uses his Catharsis Effect to cause a fire, beat Kuchinashi to the ground, and start kicking her while she's down.
- The Fighting Narcissist: Has shades of this during battles.
- Flower Motifs: Iberis and Epimedium. They adorn his stake, and an iberis flower is printed onto his vest. Iberis flowers represent sweetness and indifference, referring to his facade of being calm in all situations, while the epimedium represents strength. Two very contradicting flowers, fitting for Eiji's different personalities.
- Foil: To Lucid. Eiji is the evil teammate that repeatedly pushes for the Go Home Club to just kill μ and return to reality by destroying Mobius, as well as overall showing a nasty side of himself. While Lucid ends up being a good teammate that joins the Ostinato Musicians to learn of their own traumas and helps them come to terms with them, leading to them wanting to return to reality on their own merit.
- The Friend Nobody Likes: He's initially welcomed into the Go Home Club for his sharp wit and gentleman persona, but after his Catharsis Effect awakens and Eiji displays his more sadistic side, several of the members become more wary of him and mostly tolerate his presence. If the player goes the Musician route and completes Eiji's Character Episode, the whole club learns of his true personality and how he killed people to get his way, and they are more than happy to kick him out. And none of them shed a tear when they learn he ended up dead shortly after.
- Glasgow Grin: His Catharsis Effects gives him a constant one.
- Guide Dang It!: If the player wants to 'properly' complete Eiji's Character Episode and unlock his ultimate skill, they have to take Thorn's offer and play the Musician route. Not doing so may let the player do all of his Character Episodes, but his Trauma won't be revealed and the ultimate skill is unobtainable. Quite confusing to first-time players that may have decided to focus solely on the Go Home Club.
- He Knows Too Much
- His Character Episode in the Musician route. Eiji was caught embezzling money from his clients, with one of them preparing to take him to court over the matter. Since Eiji couldn't let that happen, he blackmailed Tadokoro into setting the man's house on fire, threatening to have his acquittance in the Uzume Corps matter overruled.
- Another instance of his Character Episode in the Musician route. The protagonist ends up learning about Eiji's actions and goes to confront him. Eiji can't have the protagonist ruin his image and livelihood by revealing his hand in the murder of Kuchinashi's family, and tries to kill the protagonist.
- I'll Kill You!: The bad ending has him snap this at the protagonist for revealing themselves as Lucid.
- It's All About Me: Turns out to be a huge narcissist and actually despises the fact that he has to work with the Go Home Club, considering most of them are highschool age or even younger. Everything he has done was for his own benefit, and he considers his reasons and matters to be more important.
- Karma Houdini: If the player doesn't play the Musician route or plays it, but doesn't complete Eiji's Character Episode before completing the Landmark Tower section, Eiji's behavior and actions will go unanswered. While he was imprisoned for embezzlement, he finished his sentence and gets released, with no indication that Eiji won't do it again. And his role in the deaths of his father and Kuchinashi's family never comes to light, leaving him to get away scot-free.
- Kick the Dog: The Sun Temple section has him and the Go Home Club being locked into a cage, where Eiji ends up bargaining with μ — if she releases him and the others, he won't burn down the place with his Catharsis Effect. She agrees and lets them go, only for Eiji to proceed to literally kick Kuchinashi onto the ground. The Go Home Club is not happy about this.
- Killed Offscreen: If the player has gone for the Musician route and completed Eiji's Character Episode before completing the Landmark Tower section, Eiji will end up banished from the Go Home Club and leaves the area. The Go Home Club later sees a newscast about Shadow Knife's fall — he landed on a glass ceiling and was badly injured, but survived, and Eiji was killed by falling glass shards underneath.
- Maniac Tongue: Has a unique character sprite that has Eiji's Catharsis Effect visible on him, where he sticks out his tongue and it's shown to be long, black, and oddly spiked.
- My Greatest Failure: His Character Episode has him reveal that he's actually an attorney, and that he was the one that got Tadokoro acquitted for his crime. Eiji considers that to be the worst decision of his life because he was too good at his job. That's another lie of his, as he gladly got Tadokoro acquitted — so that he would have something to blackmail him with into doing Eiji's dirty work.
- Never Trust a Trailer: The Japanese pre-release trailers focused on showing Eiji's gentleman-ly and calm side, leaving his actual personality in the game to be quite a surprise to players.
- Older Than They Look: He's the oldest at age 34 in reality, while he's 18 in Mobius.
- Playing with Fire: His Catharsis Effect includes him having control over fire.
- Redemption Rejection: After being defeated by the protagonist in his Character Episode on the Musician route, Aria tells Eiji to give up and return with them to the Go Home Club, so he can return to reality and pay for his crimes. Eiji pretty much tells Aria to get bent and calls the club a bunch of idiots for believing in friendship and being goody two-shoes, before devolving into a rant and fleeing.
- Red Herring: Kuchinashi believes Eiji to be the one that killed her family by setting fire to her home. The arsonist was actually Tadokoro, though he was acting on Eiji's command.
- Sequential Boss: The bad ending has him fought alongside Naruko and Kotono in the first round, if Kotaro has died during the Musician route.
- Self-Made Orphan: Eiji used to work for his father. About a year before Eiji's embezzlement was publically revealed, his father fell down a flight of stairs in his home and died from the resulting injuries, with Eiji inheriting the old man's law office. It's not outright said that Eiji was at fault for this, the timing was oddly coincidental, and Naruko outright suspects that Eiji's father had discovered his son's embezzlement scheme.
- Slasher Smile
- Sports one when his Catharsis Effect awakens initially. He also couples this with his maniac tongue sprite just before the final battle against Kuchinashi.
- The epilogue also shows Eiji sporting one when he leaves the prison he had been in for the past few years, though this is only shown if the player has played the game in a way to keep Eiji alive.
- Theme Naming: His attack skills are all named after torture or execution implements.
- Token Evil Teammate: Compared to the rest of the Go Home Club, Eiji just wants to return to reality already and thinks that killing μ and destroying Mobius would be a much faster and simpler way to do that, rather than the wild goose chase they perform by trying to find μ and talk her into letting them go.
- Trailers Always Spoil: Contrary to the Japanese pre-release trailers, the English pre-release trailers gladly revealed that Eiji was a lot more sadistic than he initially lets on.
- Villainous Friendship: His Character Episode suggests that he did consider the protagonist a friend and someone he could trust. Though this doesn't stop him from attempting to kill the protagonist in one route of his Character Episode.
- "Where Are They Now?" Epilogue: Eiji is shown leaving the prison he has been sitting off his punishment for embezzling funds in, and showing off a creepy grin as he turns around.
- Whip It Good: His main fighting style involves using the whip his cane can turn into.
Mu and the Ostinato Musicians
A good-natured Musician with a gentlemanly way of speaking. His love songs are very popular with the women of Mobius, and he's very friendly towards most of the other Musicians (even if they aren't in return). He has the ability to "mimic everything".
- Abusive Parents: His mother was a devout Christian who obstinately refused to let him see or learn anything about sexuality, to the point where he wasn't allowed to attend swimming classes at school or even watch people kiss on TV. She also would hit him and justify it as "exorcising his demons."
- Affably Evil: While he may be a pervert and an Ostinato Musician, Stork isn't a bad person. In fact, he can be quite endearing at times and does his best to try and befriend the others.
- Alternate Character Reading: "Masahiro Sagan" is a highly unusual way to read the kanji that make up his name (目 大洋). There's no single kanji that normally reads as "sagan", and "Masahiro" is usually spelled with different kanji. A more usual way of reading it would be "Taiyou Me".
- Animal Motifs: Birds (specifically storks). He's named after one, has a plague doctor mask with a beak, and wears a feathery cape as part of his outfit.
- Brainwashed and Crazy: It's heavily implied that he brainwashed himself into not feeling guilt for his actions at some point before the start of the game, and the Villainous Breakdown he has after the party defeats him is him realizing what he's done and feeling guilt for the first time.
- But Not Too Foreign: It's possible he's only half-Japanese, given his blonde hair, Gratuitous English, and his devout Christian mother.
- Butt-Monkey: While he's very friendly with most of the other Musicians, he isn't treated with the same respect by them, and certainly not from the Go-Home Club either.
- Chivalrous Pervert: All perverse tendencies aside, Stork isn't a bad person, as his Character Episodes will tell. He also greatly respects women. While is he willing to peep on them, he'll be damned if he tries anything funny with them. And then we have Kuchinashi...
- Children Are Innocent: He was a very pure child up until he learned where babies really come from. His classmates started egging him on by bringing him pinups of gravure idols, and ever since, it was a slippery slope to where he is now.
- Classy Cane: His weapon is a cane/whip like Eiji's.
- Delivery Stork: He sincerely believed this until a classmate told him what actually happens when he was 16.
- Expressive Mask: The big red eyes can change shape to match his expression under it.
- Gratuitous English: His name is written in English even in the Japanese version. He also sometimes cries out "Wow!" or "Hallelujah!"
- Hidden Depths: Despite being a peeping tom, he's also a police officer with strong morals and a sense of justice.
- Irony: Nothing could possibly fit this trope more than a police officer with upstanding morals and a strong sense of right and wrong who is also a pervert of epic proportions.
- Leitmotif: "Love Scope".
- My Greatest Failure: His inability to stop the fire that killed Kuchinashi's family still weighs on him.
- Nosebleed: Gets them a lot. He even has a dedicated hole in his mask for them!
- Oblivious to Love: The female protagonist may not realize it, but Stork seems to have developed some attraction to her. It's even noticeable in the beginning of the game where he visibly takes an interest in her when he sees her photograph.
- Older Than They Look: 17 in Mobius, 27 in real life.
- Oh, Crap!: Anytime he runs into Ayana. Since she beat him to high heaven in their first confrontation, this is hardly surprising.
- The Peeping Tom: Very much so. He tries to argue that it's the same thing as watching porn or reading dirty magazines.
- Recurring Boss: Is fought three times in his dungeon, and once more in the Grand Guignol.
- ¡Three Amigos!: With Lucid and Sweet-P. When Lucid first joins the Musicians, he and Sweet-P are their first party members. As far as character interactions go, they interact with Lucid the most. Midway through Sweet-P's Character Scenario, Stork later joins and aids her in her Training from Hell, though he mostly serves as an observer.
- Trauma Button: When Ayana claims that she'll have him sent to the police, he promptly freaks out and practically begs her not to. This is because he took a photo of Koki burning down Kuchinashi's family's home. Since he took the photo in his peeping outfit, and because he was a well-known police officer in the neighborhood he was stationed in, his life would be over in an instant if word got out.
- During his character episodes, μ accidentally presses it when she says she will upgrade his mimicry and hiding skills to the point where no one will ever be able to detect him, and no one will ever know what it is that he's seen, accidentally reminding him of the fact that he withheld crucial photographic information about Tadokoro that could have convicted Biwasaka and given Kuchinashi justice for her family. He gets better, provided Lucid doesn't accidentally say the wrong thing shortly after.
- Voluntary Shapeshifting: He can transform into inanimate objects like benches, vending machines, and lanterns.
- "Where Are They Now?" Epilogue: He's seen in an interrogation room with what is seemingly the photo he took of Koki on the table, begging for forgiveness from his interrogator.
A listless-looking Ostinato Musician. She uses a special mechanism to speak instead of using her natural voice, and rarely expresses feelings of excitement. The other Musicians like her, but she often keeps to herself.
- Determinator: Absolutely won't allow the Go-Home Club to return to reality, even if she has to die to ensure it doesn't happen. Especially not Eiji, who she believes to be the the arsonist who burned down her home and killed her family.
- Even Evil Has Standards: When Thorn declares that the Go-Home Club is to be killed, she's against it like everyone else (excluding Wicked for obvious reasons). If Eiji is still alive at this point, however, she's slightly more willing to go along with it.
- He Knows Too Much: Not her, but her parents. They knew about Eiji's embezzlement, which led to him calling on Koki to kill Kuchinashi's father (and he ends up killing her mother and sister in the process as well).
- Kick the Dog: Poor Kuchinashi gets it bad at the end of the Sun Temple. Eiji triggers her with his Catharsis Effect, and then repeatedly kicks her while she's down after the boss fight with her. He probably would have done worse had Ayana not stopped him.
- Late to the Tragedy: She was totally unaware of her home being burned, as she was on a school trip at the time.
- Leitmotif: "Onboro" (Tattered).
- Meaningful Name: The way her musician name is written (梔子) is the word for "gardenia", but the spelling can also mean "no mouth" when written 口無し, which is fitting given she wears a gas mask. Whenever Eiji is talking about her, the "no mouth" spelling is used in dialogue boxes.
- Multicolored Hair: Black and white.
- Not Brainwashed: Her loyalty to Thorn means she doesn't need to be brainwashed like Sweet-P, Shonen Doll, Stork and Ike-P in the Grand Guignol.
- Nothing Personal: Her overall views towards the Go-Home Club. She only comes into conflict with them because of her allegience to the Musicians and because Eiji is with them. Take the latter out of the equation, and she has no real reason to go against them.
- Older Than They Look: 17 in Mobius, 20 in real life.
- Pet the Dog: Her birthday party that she invites all the other Musicians to, where she introduces them to her (NPC) family. It's a genuinely happy moment for her... until one of the NPCs lights a match for her birthday cake.
- Revenge: Her single biggest motivation in life is getting revenge on Eiji for killing her family (indirectly, but still) and ruining her life.
- Shock and Awe: Her weapon is a taser like Ayana's.
- Sole Survivor: The only living member of her family after her parents and older sister died in an arson.
- The Speechless: She has aphonia as a result of the fire six years ago, and can't speak without the help of her mask. At the end of her Character Episode, you can get her to try and speak without it, but all that comes out is a weak-sounding "thank you".
- Trauma Button: Has several, but her main one is being around fire, which also causes her breathing disorder to flare up. Just seeing a lit match is enough to make her panic.
- She also has panic attacks whenever anyone raises their finger to their mouth in a shushing gesture, because that's part of how Eiji mocked her.
- Trauma Conga Line: As if her losing her family and voice in an arson wasn't bad enough, she was one of the key witnesses in Eiji's trial for embezzlement. She was unable to say anything coherent no matter how hard she tried, and Eiji started mocking her from his seat; she eventually had a panic attack and passed out.
- Undying Loyalty: To Thorn.
- Unknown Rival: To Eiji, who has no idea why she's after him and claims to not know who she is. He's lying through his teeth, of course.
- "Where Are They Now?" Epilogue: In the real world, she is last seen visiting her family's grave in the cemetery, showing them a news article — most likely about how Koki was arrested thanks to Stork turning in the photograph he took of him burning down Kuchinashi's home — before she breaks down in tears.
A man who is fanatically obsessed with μ. He's seen as selfish and egotistical by many, and is a hardcore idol otaku to the point of physical violence with the subject of his affection.
- Even Evil Has Standards: Koki is a despicable human being, of that there can be no doubt. But even he finds Eiji to be unsettling. It's also thanks to Koki that the protagonist can oust him from the Go-Home Club.
- Jerkass: Absolutely shows no respect to anyone, not even the Ostinato Musicians. Surprisingly, this also works in his favor as he's an Egohead, a type of Digihead that helps stabilize Mobius, but can't be controlled by the Musicians. Meaning he's immune to their brainwashing.
- Loony Fan: Of μ and in real life, Uzume Corps. (specifically Himari). He even claims that fans and gods are the same.
- One Degree of Separation: He is the reason why all the events that transpired in the Overdose characters' backstories happened and connects them all together.
- To Ayana: When Himari was still alive, Koki was one of her fans, albeit a deranged one as after an event, he brutally assaulted her. The attack resulted in Himari losing her eyesight, which also led to her suicide. Ayana, who was a member of the Uzume Underground, saw this happen and increased her already severe fear of men.
- To Eiji: After the above mentioned assault, Koki was defended by Eiji Biwasaka, who was a successful lawyer. By pleading temporary insanity, Tadokoro was allowed to go free. Unfortunately for him, Eiji told him he could easily overturn that decision unless he did him a favor...
- To Kuchinashi: As Koki learned, Eiji was an Amoral Attorney who had been embezzling funds from one of his clients. The client found out about it and was going to take Eiji to court. In order to silence him, Eiji threatened to have the court decision overturned and cart Koki off to jail unless he killed the man. Koki did as he was told and set the client's house on fire. The only survivor of that incident was a girl who had been away on a school trip.
- To Stork: When Koki set the house ablaze, he wasn't alone. Stork happened to see him hanging around the client's house while he was doing what he did best and initially thought he was a fellow peeper intruding on his territory. Taking pictures in order to show his carelessness, Stork realized too late what Koki was doing and tried to chase after him. Since his training didn't cover a house being on fire, all Stork could do was run through the streets and scream "Fire!".
- Oh, Crap!: Eiji Biwasaka is practically his panic button. Not surprising, given that he could easily have turned Koki's life into hell anytime he wanted.Koki Tadokoro: Wha...?! I-It can't be... A-are you... B-B-B-B-Biwasaka... Mr. Biwasaka?!
- The Last of These Is Not Like the Others: His status as an Egohead. Whereas all the enemies you've fought are Digiheads — loyal fanatics of Mu — and Laggards — individuals who realize Mobius is fake but don't have the potential to develop a Catharsis Effect — Egoheads are described as uncontrollable. While their status is overall beneficial to Mobius' continued existence, the Ostinato Musicians can't control them.
The leader of the Uzume Corps. underground idol group up until her sudden death.
- Driven to Suicide: Kills herself after Koki assaults her and leaves her permanently blind.
- One Degree of Separation: While she has a personal connection to one of the new characters in Overdose, it is her death and the events that follow it that link them all together.
- Posthumous Character: Himari is dead six years prior to the start of the game.
- Spell My Name with an "S": For a time before the reading for her name was confirmed as "Himari", many fans called her "Hinata", which is a more common reading of the kanji in her name.
A girl who appears before the protagonist when examining some of the world wonders around Mobius. She has no memory of who she is or why she's in Mobius.
- All There in the Manual: In the credits, it is revealed her name is Nanami.
- Schrödinger's Question: When the protagonist tells her about her past based on the enigmas she's found, the nameless girl is either confined to a hospital bed, in prison or she has yet to be born in the real world having heard Mu's music while in her mother's womb.