A list of characters for Akuma No Riddle. Class Black is listed according to their attendance numbers, except for Haru.WARNING: Spoilers ahead!
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General tropes for the whole class:
Myojo Academy's secret Deadly Game disguised as a high school class of thirteen girls. In reality, this is an assassination game where twelve assassins compete to be the first to kill the target within the class. In a twist, one of them decides to protect the target and despite this, the game is on.The true nature of Class Black is revealed to Tokaku and Haru (who already knows) by the Myojo Academy chairwoman Yuri Meichi. It is a trial to test Haru and her "Queen Bee" ability and see if she can survive from other assassins targeting her. If Haru succeeds, she will be the new "Primer" for her and Yuri's clan.
Dark Action Girl: They're all rather morally ambiguous and the best of them can still be considered anti-heroic.
Ambiguously Gay: All of the girls with possible exception to Suzu, who is more Ambiguously Bi. In the anime, none of the pairings go beyond subtext, and some are even left out; the manga, however, is more forward and includes more pairings between the girls.
Sort of in Episode 10, all of the expelled assassins return for Sumireko's tea party... as robots. However, this is played straight for Otoya, who is the only one to return as herself in the tea party.
Everyone reappears in episode 12 for the epilogue.
Tokaku's aunt Mako and mother Karami were killed by her grandmother for opposing the Azuma's way of life. In the case of her aunt, Tokaku was able to witness it.
Haru has been an assassination target for her entire life. Several members of her family have sacrificed themselves to save her, and being hospitalized after the attacks meant she was never really able to go to school like a regular person.
Isuke's biological parents nearly let her die while raising her, and later were killed by her current father Eisuke, who trained her to be an assassin since childhood so that she could succeed him.
Kouko was known as an incompetent assassin for most of her life and was responsible for the death of her mentor.
As a child, Mahiru was imprisoned and forced to be photographed continuously, and is heavily implied to have been sexually abused as well. It put her under so much stress that she developed the split personality Shinya and killed her captor.
Sumireko was targeted by assassins for most her her life, similar to Haru. The difference is that while Haru gained several scars from the attacks, Sumireko lost all of her limbs, which she had replaced so that she could fight against her attackers herself, and had to relearn how to do things like walk.
Deadly Game: Class Black is an assassination competition. Several hired killers compete with one another to see who can kill the target first while following specific rules:
Assassination must be announced first via special notice, and then carried out within forty-eight hours. Failure means expulsion.
No one outside the class can be involved in these attempts, including their homeroom teacher Mizorogi. Breaking this rule also means expulsion.
The victor gets whatever they want as a prize.
In Episode 7, Suzu sets up one of her own with Riddle Me This as her plan to take down Haru. The other assassins (except Isuke) even see this as a nice change of pace.
Disney Death: All of the deaths by the ending. Explanation is only given for one of them: Haru's, who only survived because of a metal plate implanted in her chest.
Everybody Lives: Yes, everybody and only Haru is given an explanation on how she survived. Haru is shown being taken away in an ambulance so it can be assumed everyone was given quick and highly professional medical attention.
Expy: A bunch of girls have similarities to popular girls from other shows, appearance and personality-wise. Particularly that one magical girls anime.
Flower Motifs: Every expelled assassin gets a flower on their desk once they leave. The flowers have meanings in Hanakotoba that are relevant to the assassin in some way.
Foreshadowing: Some of the later assassins give out many hints about them before their episodes.
Before her episode, Suzu gave hints regarding her age, like how she got a stiff shoulder during one of the tests in Episode 4.
Notice that Nio doesn't bathe with other girls, is always fully-clothed, and has no roommate? That's because she has a bunch of elaborate markings on her entire body.
In episode 3, Otoya, who is later revealed to be an Ax-Crazy serial killer, tells Mahiru that they have more things in common during the day. Sure enough, it turns out that it's Mahiru, not Shinya, who actually wants to kill people.
When the class is taking pictures in episode 6, Mahiru hides from the camera, and during episode 8, Shinya is noticeably bothered by the brightness of the lamp behind Sumireko, and makes it a point to adjust the shade. It turns out later that exposure to bright lights can reduce her to a sobbing wreck because her past involved imprisonment and a lot of unwilling flash photography.
Sumireko herself is riddled with this. First, she claims to have a frail health and is only comfortable on her own furniture that she brought to school. And then in the school's pool facility, she wears a small dress instead of a swimsuit. Lastly, Shinya tells Tokaku and Haru that she (and Nio) doesn't like bathing with the others. What do they all lead to? Sumireko reveals herself to be a cyborg in her episode.
Friendly Enemy: Class Black is a competition and nearly everyone participating is an experienced killer, but this doesn't stop them from chatting about mundane topics like food and even taking baths together.
Further proven in the final episode, when despite having spent the majority of the series fighting for their lives against the deadly attacks from the others, Haru and Tokaku plan on visiting everyone to give them their graduation diplomas.
Numerological Motif: Some of the number assignments happen to be significant for their characters:
7 is thrown around everywhere with Suzu, as can be seen in her section below.
While not as prominent, Haru's number also gets a trope for itself.
Otoya, no. 8, is associated with the spider.
Hitsugi and Chitaru's numbers, 4 and 9, both have unlucky connotations in Japan (Four Is Death happens to be more well-known than nine, which can be read as "suffering"). It's an early hint to what happens to them.
While possibly a coincidence, Shiena's number, 5, is the difference between Hitsugi's and Chitaru's, as in 9-4=5 or 4+5=9. In the manga, Hitsugi eliminates her because she didn't want Shiena to get between herself and Chitaru.
Out of all the number assignments in the class, Tokaku's and Haru's are the only ones that can't be rolled with a pair of dice. 1 cannot be rolled, and 12 is the maximum number, so 13 can't either.
Professional Killer: Most of the assassins. Some of them are born into the job, while others do it for the money, whether they want to or not. Otoya is the only one explicitly stated not to fall into this category.
The Unfought: In the anime, Tokaku never fights Shiena (as she is poisoned by Hitsugi before she could send her notice), Hitsugi (because of the events of the school play), and Suzu (who traps Haru with a Explosive Leash seconds after the latter receives the former's notice).
Walking Spoiler: Expect to see a handful of assassins having this in this page.
An assassin from Academy 17 and the protagonist of the series. Right before Class Black is activated, she changes her role in the game from one of Haru's assassins to her protector. Apparently, she has some sort of reputation as an assassin, but Isuke quickly discovers that she has never killed anyone before. Tokaku attributes her inability to kill to a curse in her past.Her reputation comes from being from a family of assassins.
Declaration of Protection: She mentions her intention to switch to Haru's side twice: first to Haru, and then the rest of the assassins.
Dulcinea Effect: She's pretty quick to risk death and openly declare her intentions to a room full of killers for a girl she's only recently met. Justified as she is implied to be influenced to do so by Haru's Queen Bee power.
Iconic Item: Her classic cellphone which is a flip cellphone with physical keypads. Interestingly, its OS appears to be as good as modern smartphones. Isuke destroys it in Episode 9; Tokaku appears to have bought the same phone the next episode.
Made of Iron: She could still stand up after having a chandelier thrown at her.
Meaningful Name: "Azuma" means "east" (which makes "Azuma of the East" seem redundant). The way Tokaku's name is written makes it mean "rabbit horn", which is used to refer to impossible or imaginary things. Her grandmother meant for it to make her intimidating.
The Nose Knows: She has a very sharp sense of smell, which she shares with some of the other assassins.
Panty Shot: Has a few ones during her battle with Sumireko.
Punch Catch: Against Haruki, who had the upper hand until that point in the fight, when Tokaku completely turns it around.
Not So Stoic: By episode 7, Tokaku becomes so worried that she can't save Haru that she yells at Isuke after she wastes one of the tries to deactivate the bomb. In the final episode, she's even in tears after she thinks she killed Haru.
Thou Shalt Not Kill: Enforced on her by her aunt to honor the wishes of Tokaku's mother. Later, becomes averted after Tokaku's mother "gives her daughter permission". Still kinda played straight since even after gaining the ability to kill, she only strangles Isuke unconscious and the two people she stabbed lived.
Class Black's target. She comes from a very large family, who also seems to be out for her blood for reasons unexplained. Despite being a mark for assassins her entire life, Haru remains cheerful and, alongside Tokaku, tries to graduate from Class Black alive. The manga mentions that Haru has a special ability called Queen Bee, which allows her to gather protectors. Tokaku is implied to be under the effect of this ability. In the anime, Haru is from a clan where "Primers" like herself gather people for protection. The Class Black game is meant to be a trial for her, something that she is already aware of from the beginning. The reward that she wants is to leave the clan and have a normal life.
Acquired Poison Immunity: All the surgeries Haru has been through has made her somewhat resistant to sleep-inducing drugs.
Action Survivor: Not much of a fighter, but she's good at taking advantage of her surroundings.
One of Class Black's more pragmatic assassins. Isuke is blunt and confident enough to attempt to kill Haru before Class Black is activated. Through this, she learns that Tokaku has never killed a person, but decides to keep it a secret.She is the eighth person to go after Haru, requesting money as her reward. Her final goal is to build a villa for her parents when they get old.
Abusive Parents: Her biological parents were neglectful and nearly let her die. Seems almost fair that her adoptive parents killed them and took her in.
Impaled Palm: Or below the wrist, anyway. Tokaku gives her one just before she is about to kill Haru.
It Amused Me: Isuke tries to avoid boredom as much as possible. Her efforts to do so range from mild teasing to putting people in mortal danger.
Likes Older Men: Isuke only likes guys over forty, and she'll kill you for calling them old.
Loophole Abuse: She sends Tokaku and Haru her notice with Banba's name on it, luring them that Banba is after Haru. The rules never mentioned anything about putting someone else's name on their notice. It also turns out that Banba is also after Haru.
Ship Tease: With Haruki. She is shown to actually be upset when Haruki is eliminated and states in the manga that her ideal type is the blue-collar hardworking type, so Haruki is shown in the finale to be a construction worker.
Spot of Tea: Guilty of this. She even tried to use tea to take out Haru.
An assassin who looks like an elementary school student. She met Chitaru Namatame while trying to find her way to Myojo Academy, and the two seemed to become friends afterwards.She is the famously cruel assassin Angel's Trumpet, whom Chitaru entered the class looking for, and is the fourth to attempt to assassinate Haru, but later stabs herself with Chitaru's dagger during the school play. She was originally thought to be dead, but the final episode revealed that she is alive and well. Her wish was to leave Class Black with Chitaru.
Alas, Poor Villain: When Chitaru hesitates to kill her for the sake of her mentor, she stabs herself to save her the trouble while hugging her. Immediately afterwards, it's revealed that she was planning to quit Class Black and leave with Chitaru.
Easily Forgiven: Subverted. Despite she and Chitaru surviving, the latter has not fully forgiven her for killing her mentor's daughter. Though its somewhat played with as its still implied Chitaru still wants to be with Hitsugi
Four Is Death: She's No. 4 in her class, the fourth to attempt to kill Haru note If you don't count Shiena, as she was taken out before she could even make her attempt.and the first character to (seemingly) die.
Hidden Depths: Hitsugi is actually "Angel's Trumpet", a ruthless assassin who killed the daughter of Chitaru's teacher (the teacher in the manga). When Chitaru told Hitsugi of her goal to kill Angel's Trumpet, Hitsugi promises to help anyway she can, even if it means helping Chitaru plunge the knife into her own heart.
Nice Girl: Generally very sweet and polite. Later on subverted when it's discovered that she's the ace of a notorious assassin organization, kills for her own amusement and only acts sweet in front of Chitaru.
Possibly Zigzagged given how Hitsugi willingly allowed herself to be killed by Chitaru, so that the latter could fullfill her goal to kill Angel Trumpet.
No Sense of Direction: She befriended Chitaru after the latter helped her find the academy. Later, they're shown holding hands often so Hitsugi doesn't get lost.
Not Quite Dead: The final episode reveals that both she and Chitaru survived.
Older Than She Looks: Hitsugi is a high school student despite looking young enough to pass for elementary school.
Poisoned Weapons: Her Weapon of Choice is the deadly Angel's Trumpet poison from which she got her nickname. She sometimes coats them on objects, or simply shoots her targets with poisoned needles.
Tender Tears: In the last episode she is trying to talk to Chitaru who is steadily ignoring her. When she finally gives up, Chitaru clasps her hands and implies that she has forgiven Hitsugi, which causes her to break into tears.
A slightly scatterbrained member of Class Black. The manga shows that she's highly against bullying, calling it unforgivable.In the anime, she's poisoned by Hitsugi just before Haru receives her assassination notice. After she's sent to the hospital, Nio explains that by the time she recovers, her 48 hours would have been up, so she's expelled in advance. Her abilities as an assassin are unknown. The manga reveals that she wanted her reward to be decided by the other members of her organization.
Adaptation Distillation: Is practically a non-entity in the anime, with her backstory and hatred of bullying being completely left out.
Brainy Brunette: Word of God says that she's more skilled at analysis than assassination. It's evident during her time as director; she's able to discern things like Hitsugi's and Chitaru's weapon types through subtle hints that she gets from watching them.
Bully Hunter: Some of her lines concerning Otoya suggest this. In fact, she's later revealed to have joined an assassin organization specifically to get back at the people who bullied her in the past.
Cute Bookworm: Often depicted with a book and seems to have an interest in drama and theater.
One of the friendlier assassins. She is noted by Tokaku be very physically strong. Gets along with Isuke well, despite the latter's attitude.She is the third to attempt to assassinate Haru, requesting to have her family fed for the rest of their lives as a reward.
I Just Want To Be Free: Part of her motivation is that she wants to get rid of the burden of having to kill to sustain her family. While she considers dying a viable method of escape from it, she isn't so selfish she'd leave her family to starve afterwards. In the finale she is shown still trying to sustain her family, but at least she doesn“t work as an assassin anymore.
Irony: She, Tokaku and Haru are spared from her Suicide Attack by the set that she made for the play.
Tomboy with a Girly Streak: The first conversation she and Isuke have is about nail polish, but she acts and dresses like a tomboy would.
"Where Are They Now?" Epilogue: Haruki gets a job as a construction worker, and judging by the equivalency exam instructions she has with her, she also plans to send herself and her siblings to school.
No. 7: Suzu Shuto
Voiced by: Chika Anzai
A calm, pleasant member of Class Black who happens to know about topics that the others may not know about. For some reason, she has a speaking pattern that's used mostly by the elderly. :She acts as class rep after Kouko's expulsion.She is the seventh student to be expelled out of Class Black, after asking to be able to age and die like a normal person (by being cured of her Highlander Syndrome). Once again, the class is left without a rep.
The Ageless: As a result of her Highlander Syndrome, her body doesn't visibly age.
Ambiguously Bi: She had a boyfriend in the past, but in the present, she has plenty of Les Yay with Kouko.
Graceful Loser: Despite having another day to kill Haru, she willingly surrenders.
Granola Girl: She refers to herself as a health nut and is shown exercising often. This is to keep her body in good condition even with its age, which explains why she couldn't physically take down Haru.
Japanese Pronouns: "Washi", a pronoun that (as far as anime goes) is used mostly by old men. Shiena comments on this while they prepare for the play, saying that it doesn't fit Suzu's role. It turns out she has a reason for using it.
Meaningful Name: Her surname contains the kanji for neck and wisteria. Suzu plants a bomb on Haru's neck. A wisteria is a type of flower; Suzu explains the meanings of the other students' flowers.
The Unfought: Because of her extreme age, she can't kill Haru or fight Tokaku through physical means.
"Where Are They Now?" Epilogue: She visits the grave of her dead loved one for the last time, saying she's going to stop looking at the past and apparently accepting her form of immortality.
Who Wants to Live Forever?: The reason she doesn't want to be immortal is because she fell in love with someone who aged without her, left her for someone who did age and eventually died. In the end she comes to terms with it and decides to live her long life to the fullest.
Class Black's most energetic student. She's actually a notorious serial killer dubbed the 21st Century's Jack the Ripper, known for killing her victims brutally for pleasure.She's the first to attempt to assassinate Haru, requesting life-long serial killer insurance as a reward. She is also the only assassin (so far) to return after being expelled.In episode 10, she breaks out of her prison and makes another attempt to kill Haru. However, she is captured by Sumireko and is "invited" to her tea party. She is seen back in jail near the end of the anime's finale, planning her next escape though admitting that it will be years in the making.
Airplane Arms: In the manga, this is how she runs while chasing Haru in the botanical garden.
Animal Motifs: Spiders. Specifically, she kills like a spider would — little by little.
Ax-Crazy: She likes killing and the only reason she joined class black was so that she could keep killing without having to worry about the law.
Big Damn Villain: She battles Sumireko with a kukri and even manages to disable one of her cybernetic arms. Sumireko easily knocks her down, though.
Bound and Gagged: In episode 10, Sumireko restrains her and puts her in a straitjacket so she won't cause trouble at the tea party.
The Bully: She really enjoys messing with her classmates, especially Mahiru and Shiena.
The Bus Came Back: In episode 10. She escapes from her prison to kill Haru, only to be captured by Sumireko for her tea party.
Cute and Psycho: She's chipper, energetic and not that bad to be around until you learn she's a serial killer.
Dual Wielding: Otoya's good enough with scissors to use two at once. She also uses a pair of saw-like blades (Word of God says they're actually giant scissors) after Tokaku interferes with her attempt at killing Haru.
Finger Tenting: In the manga, as she sees Haru receive her anonymous assassination notice.
Flower Motifs: Mountain lilies. Suzu explains that they symbolize the joy of life.
Glowing Eyes of Doom: It's almost definitely just an artistic touch, but Otoya's eyes take on a bit of a glow when she starts getting really violent.
I Lied: About a speech to Haru saying how she's been protecting her from Shiena, and while she puts her to sleep with Gelsemium flowers.
Irony: In Episode 3, she strips Haru down to her underwear and puts her in a Bound and Gagged position. In Episode 10, Sumireko puts her into one, though with clothes on and with a straitjacket. Interesting enough, they escape from that position in almost the same manner, by cutting the rope holding their hands behind them with a sharp object.
Jerkass Has a Point: A Foreshadowing one. In one lunch break, Otoya tells Mahiru how they are alike during the day, which prompts a reaction from the latter. Several episodes later, Mahiru does have some Ax-Crazy attitude, which Otoya was referring to.
Kukris Are Kool: Out of all the weapons available in the room to use against Sumireko (which include heavy firearms), Otoya chooses to use a kukri. It turns out to be a good choice, as the first thing to cause any real damage to Sumireko's body.
Loophole Abuse: In the anime, she doesn't include her name in her assassination notice when she sends it to Haru, since the rules don't state anything against it. She uses this to pin the notice on Shiena to lower Haru's guard.
Meaningful Name: Her given name contains the kanji for strange and "how?"/"what?"/question mark. Her surname contains the kanji for warrior and knowledge.
An assassin with a princely demeanor, who became friends with Hitsugi after helping her find the academy. Though she's a participant of Class Black, her real target isn't Haru, but an assassin called Angel's Trumpet.She attempts to assassinate Haru during the play, thinking that she is Angel's Trumpet when in reality the person she's looking for is Hitsugi, but never sends a notice since she is not doing this as part of Class Black competition. She drinks a vial of Hitsugi's poison after Hitsugi stabs herself with Chitaru's dagger. Like Hitsugi, she was thought to have died, but is revealed to have survived in the final episode
Big Sister Instinct: Chitaru seems rather protective of Hitsugi and is almost never away from her side.
Class Black's arbitrator and a student affiliated with Myojo Academy. She's upbeat and playful, but treats the rules of Class Black very seriously. She also claims that Haru directly killed her family members, instead of them sacrificing themselves for her. She is a subordinate of the chairwoman Yuri Meichi and a member of the Kuzunoha clan, a family of assassins and rivals of the Azuma clan. In the end she also tries to assassinate Haru by disguising herself as Tokaku in order to confuse her, but the real Tokaku defeats her by fatally stabbing her. The reason why she failed was because she wasn't really trying to kill Haru and just wanted to test her Queen Bee abilities.
"Nio" is an old name for the grebes that lived in Lake Biwa. In the manga, Mizorogi guesses that Nio comes from Shiga based on this fact, which Nio never confirms. Her full-body markings have wing patterns on the torso, likely evoking grebe imagery.
Miss Exposition: Because she is a Myojo Academy student from the start, she knows a lot about the school, such as how it was constructed and its seven wonders. As the arbitrator, she sometimes explains things related to the game, such as what an assassin wished for.
In the first episode, she mentions Tokaku about how the school was constructed over an underground graveyard. In Episode 11, said graveyard was renovated into one for Haru's clan, where the people who died for the clan members have their names engraved in stone.
New Transfer Student: Averted. Despite wearing a different uniform, she is the only one in Class Black who is already a student of Myojo Academy.
The Nose Knows: Agreed with Tokaku that Haru was the target because she smelled different.
Obfuscating Stupidity: She constantly acts as if she's not a very big threat, though there are many hints suggesting she's one of the most dangerous students.
Out of Focus: She spends so much time being the arbitrator that she has to remind Yuri that she is a part of the game too.
Pint-Sized Powerhouse: She is the second shortest in the class behind Hitsugi and while she doesn't have much strength as Sumireko, she's not the kind of little girl to mess with.
The daughter of a conglomerate CEO, and the last student to transfer into Class Black. She's rich enough to bring her own furniture to the class, but she doesn't mean to cause anyone inconvenience.She intentionally waited until all of the other assassins (aside from Nio) had finished their attempts before she started her own, because her wish was to prove that she was the strongest by killing Haru herself. She and Haru are the only students who are aware of Class Black's true intention. In her episode, she is revealed to be a cyborg.
Lack of Empathy: She is considerably colder in the anime than in the manga, especially when she gives Banba's unconscious body her Flower Motif as a sign of her expulsion and leaves.
Male Gaze: The anime has an obsession with zooming in on her assets after she strips to her combat gear which later reveals her cybernetic limbs.
Meaningful Name: Her surname (which is spelt with the kanji for England) is read as "Hanabusa", which means the calyx of a flower. Her given name means "pure love child/child of pure love", but the "Sumire" part can also be read with the kanji for violets, a type of flower.
The Ojou: More so than Isuke. Her speech and mannerisms are much more formal.
Perpetual Smiler: Smiles in nearly all of her appearances, and sometimes it's a little sinister.
Punched Across the Room: Punches Otoya, kicks Tokaku, and sends them both flying to the walls that happen to be behind them.
Retired Badass: Her epilogue implies that she has quit being an assassin for cooking.
Riddle Me This: She introduces her knowledge of Haru's ability with a riddle: "How is a rabbit like a worker bee?"note The first character in Tokaku's name means "rabbit".
During the day, Banba is Mahiru, an extremely shy and mild-mannered girl. Once the sun is down, she turns into Shinya (pronounced as Shin'ya), who is much more aggressive and direct. Mahiru seems to enjoy collecting objects from people she expects she will kill in the future.Shinya is the ninth person to attempt to assassinate Haru, on the same night as Isuke. According to Nio, they don't have any sort of reward in mind, since Mahiru already has her "relic" from Haru (the strap).
Axe Before Entering: How Shinya sent her notice to Haru. With a gigantic sledgehammer, of course.
Ax-Crazy: Shinya. Or so it would seem. In actuality, Shinya merely carries out the wishes of Mahiru. They started having this after killing their rapist. As shown in the finale, they got better.
Character Tic: Shinya sometimes holds her hand up like she's pretending to smoke.
Creepy Souvenir: Likes to collect her victim's "relics". Like Haru's strap.
Cute and Psycho: Cute while Mahiru and straight-up psycho when Shinya. Or so it seems at first.
Flower Motifs: Moonflowers and Japanese bindweeds, which mean "bewitching" and "ties", respectively. More relevant are their Japanese names: "Yorugao" and "Hirugao", which literally mean "night face" and "day face".
School Swimsuit: According to Shinya, Mahiru's always wanted to swim in one. Amusingly, the one she wears is equipped with a "Shinya" nametag under a "Mahiru" nametag for when they switch control.
Shrinking Violet: Mahiru, who keeps her head down at all times, hardly ever initiates conversation and never raises her voice.
Split Personality: By day a Shrinking Violet, by night an aggressive psycho. They seem to take turns controlling the body, and they're also aware of the other's thoughts even when the other has taken over. This was caused by their traumatic childhood past and Mahiru depends on Shinya to murder people. As shown in the finale, Mahiru is not so dependent on Shinya anymore and can go outside without problems.
Super Strength: Word of God explains that Shinya has a "berserker" state that lets her use that sledgehammer she has. She can't stay it continuously, though, and needs to rest from time to time if she has to use it a lot.
Jerk with a Heart of Gold: In the end Kaiba's objective was to make Tokaku develop herself as both an assassin and a person. In the finale, after Tokaku answers his final riddle, he seems to be genuinely happy about her answer.
Riddle Me This: Regularly sends Tokaku riddles through her phone. He seems to use them to gather some kind of information about Tokaku's development, and claims that Tokaku might be punished if she doesn't answer them. Turns out all of them have no "right" answers. He wants Tokaku to stop relying on others and find her own answers.
Troll: His methods of teaching Tokaku come off as this, even after the reasons why are stated.
A biology teacher in charge of Class Black. He's very energetic, and has no idea about the class's Deadly Game.
Big "NO!": A comical one after seeing the entire set for the class play destroyed. It's even in Engrish.
Butt Monkey: None of the students of Class Black really take him seriously, and quite a few of them spend class time blatantly ignoring him. Fortunately, he's too enthusiastic about his job to notice.
Determinator: Despite genuinely feeling grief over losing almost all of his students and still unaware about the assassination game, he is willing to finish his job until the end. In the finale, he succeeds and he is back to his good ol' self.
Earn Your Happy Ending: The finale shows him personally giving Haru her diploma and playing the piano as she sings the school's anthem. This is enough to make him happy again.
Good Is Dumb: Even after losing half of his homeroom class, he is still in high spirits. He doesn't seem to care about the flowers that are placed on the expelled students' desks, how he loses three of his students within two days, or how his expelled students are still in for graduation.
This is the very reason why Yuri chose him to be the homeroom teacher for Class Black.
Locked Out of the Loop: The students are absolutely not allowed to involve him in their assassination attempts or let him in on the purpose of their class. In the end, he remains clueless about the class' secret game.
Nice Guy: Only wants the best for his class and doesn't seem to take very badly the way they treat him.
Stepford Smiler: It's implied that he keeps himself happy and energized as his students are expelled one by one. When Sumireko is expelled, it's his last straw and shows real grief in front of his three remaining students (Tokaku, Haru, and Nio).
Click here to see her unobscured.
The unknown chairwoman of Myojo Private School and responsible for the creation of Class Black. She monitors both the deadly game and the entire academy. Nio served as her mouthpiece during the assassins' meeting. She is also a former participant of the group. She lasted for six days as another primer candidate.In Episode 11, Nio introduces Tokaku and Haru to her in the tower building. There, Yuri tells them the real intention of Class Black as a trial for Haru to see if she can be the "Primer" for her and Yuri's clan.
The Faceless: Downplayed. Her face is somewhat obscured in the opening and her mouth is seen in the third episode. Finally averted in Episode 10.
Foreshadowing: Has one of her own. She is always seen in her surveillance room lit with many lights. It is hard to tell what hair and eye colors she has. When she personally comes to the underground graveyard in the finale, she is revealed to have the same hair and pink colors (red and pink respectively) as Haru.
Interface Spoiler: The credits for episodes where she appears spoil her name before it is actually revealed. Curiously, her name is spelt in given name-surname format despite being in kanji; this has led to some sites getting the order of her names wrong.
Meaningful Name: Her given name is spelt with the kanji for lily; it can also refer to the Japanese girls' love genre. Her surname contains the kanji for eye; she's the overseeing chairman of the school who constantly surveillance Class Black. "Ichi" is also part of Haru's surname, which implies that they are relations.
Mysterious Employer: She formed Class Black without ever saying why, and only directs the class through Nio, who doesn't seem to know much more than the rest of the students.
No Name Given: Her name is never mentioned for the majority of both anime and manga, only referred as the "chairwoman". In episode 11, Nio introduces Tokaku and Haru to her and gives them out her full name.
Pet the Dog: She took care of Nio ever since she was young. The manga implies that she also took care of Haru in the hospital.
The Everybody Lives ending can probably be attributed her, as the only way anyone would have survived is with quick and highly professional medical attention. She would have been the only one capable of providing it, as well as being the one to arrange Otoya heading toward prison after expulsion.
Screw the Rules, I Make Them!: Being the academy's chairwoman and all, she can do pretty much what she wants. She can even make all of the expelled assassins graduates.