List of characters in the series.
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Main Characters
Fudō Nomura
Fudō Nomura
Voiced by: Tasuku Hatanaka (JP), Scott Gibbs (EN)
The main protagonist. He's transferred into the academy after a street brawl that left him in the hospital...or so the records say. The reality of the situation being that he quite handily beat everyone in said fight and ended up hurt by a man in white whose terms were to "Become mine or die".
Though he looks and talks like a delinquent he actually enjoys peace and quiet instead of actively seeking fights. Now as the newest transfer student at the symbiosis academy his options are to fight his way through the student body or be forced to dress and act like a girl like so many before him. To this end he sets his sights on earning a pass that allows him to roam freely on and off campus which means defeating the Supreme Five Swords and earning all five of their stamps to validate it.
- Accidental Pervert: He often ends up in erotic situations with the girls that make him look like a perverted molester, such as walking in on them changing or groping them. It even happens to him with a bear.
- Battle Strip: When dealing with Satori, who has been fighting him naked the entire time, the trick to her defeat ends up being a taste of her own medicine. Doubling as Chekhov's Gun is the fact that he couldn't use his madan because seeing her naked left him with an erection.
- Big Damn Heroes: Throws Tsukuyo out of the way when Amou is about to finish her and charges her head on in one fluid motion.
- Chick Magnet: After winning his sumo match against Warabi's bear, Nomura has a large crowd of female students fawning over him wherever he goes, to the annoyance of Rin and Mary.
- Chivalrous Pervert: When he defeats Mary, she under the expectations of his fight with Rin, demands that he violate her. He refuses saying that as much as he'd like too, he refuses to be forced to molest someone. Unlike the anime, however, the manga made it clear that he was suffering from blood loss at the time and wasn't thinking straight as a result.
- Covered with Scars: He has scars all over his torso, back, and arms which he got from the Training from Hell he was put through as a kid.
- Defeat Equals Friendship: Towards the Five Swords. After fighting Rin and Mary, he manages to gain their respect as they realize that he isn't as barbaric as the males they're used to.
- Going Commando: In Episode 3, Rin hurrying him to get ready in the morning causes Nomura to forget putting his underwear on. The result is Choka and Mary getting a full view of his male private part when his pants fall down.
- Heroes Fight Barehanded: He's actually a practitioner of the Jigen-Ryu
, but his hatred of swords caused him to apply it to a hand-to-hand combat style. He wears knife-proof gloves to augment it. Its revealed that his dislike of swords stems from his abusive master, who was obsessed with swords. - Human Pack Mule: The Supreme Five Swords force him to carry their luggage in the Hot Springs Episode.
- Japanese Delinquents: His manner of speaking and character parodies it. Though, overall he averts it, never looking for problem and only fights for self-defense or protecting his friends.
- New Transfer Student: The series begins with him transferring to Aichi.
- Not Distracted by the Sexy: Ever since his fight with Satori, Nomura no longer gets embarrassed seeing a girl in a undressed state except for certain situations.
- One-Man Army: He was expelled from his previous school after an incident where over 40 students were injured with him receiving the most damage. In reality, the other students could barely touch him and he defeated them rather easily. He was only damaged when fighting Amou.
- Outside-Context Problem: Rin likens him to a "bare-handed swordsman", as he has all the tells of a swordsfighter, including the improved kinetic vision to follow a sword's movement (much faster than bare fists) yet he fights without a weapon, and the sheer power of his Madan is extreme and apparently inexplicable. It's only when confronted with Tsukuyu that he's revealed as having been trained as a swordsfighter in Jigen-ryu by a master so sadistic he ended up loathing swords, and the Madan is a Jigen-ryu skill repurposed for bare-handed use.
- Parental Abandonment: His parents died when he was very young, so he doesn't even remember their names or faces.
- Say My Name: Directed at Amou after he saves Tsukuyo from her.
- Signature Move: His Madan, or Spirit Bullet, is a technique that allows him to gather energy and blast through his opponent with an immense amount of energy doing internal damage, provided he can lay a hand on them.
- Training from Hell: He describes his childhood as being full of a lot of abusive training to the point that his body simply couldn't take it anymore and gave out on him.
- Would Hit a Girl: Nomura has no problem slapping Satori, or getting into a fist fight with Amou. Justified since both were trying to kill him.
Kirukiru Amou
Kirukiru Amou
Voiced by: Eriko Matsui (JP), Carli Mosier (EN)
The "other" heroine of the series and the true identity of the man in white that put Nomura in the hospital. Whatever occurred during their fight something he did left a mark on her and now she displays a low-key obsession with him. Having arrived at the academy before him she's now looms as a shadow over the academy that even the Five Swords are hesitant to battle against.
- Animal Motifs: Mary compares Amou to the Nemean lion because of her ironhard skin. During her faceoff with Tsukuyo, Amou has a lion Animal Battle Aura.
- Arch-Enemy: To Nomura in the first arc. Of all the opponents he has faced at Aichi, Amou is the most dangerous and is the only one Nomura has had a previous encounter with as well as a personal grudge.
- Bifauxnen: In her former school, she wore a male uniform and a hat that compressed her long hair, which gave Nomura the impression that she was a pretty-looking guy until he sees her in a female uniform at their new academy.
- But Now I Must Go: Not by choice, though. As punishment for the incidents she caused, she is transferred by Koharu, the owner of the school, to the other symbiosis school, Hokkai. She seems content with it, surprisingly.
- Cleavage Window: Her cleavage gets exposed as a result of the Clothing Damage leaving a hole in the front of her shirt by Tsukuyo.
- Clingy Jealous Girl: If she sees Nomura being close with someone else, people are going to get badly hurt.
- Combat Stilettos: She's the only girl to wear high heels and they never get in the way when she's stabbing people with her bare hands.
- Compressed Hair: At her former school, she dressed like a guy and somehow kept her long hair in a Commissar Cap.
- Contralto of Strength: One of the most brutal and dangerous women in the series also happens to have one of the lowest voices.
- Counter-Attack: Her training has given her an auto-counter where her body strikes instinctively with horrifying precision. No one in the series has yet to land a strike on her without getting stabbed themselves for their trouble.
- Curtains Match the Window: Black hair to go with her black eyes.
- Custom Uniform: She's the only female student who bothers to wear the uniform's jacket - normally only the males do it.
- Dark Action Girl: Cruel, easily angered, lacking in morals. She's horrifyingly powerful and can beat most of the Five Swords effortlessly. She's also the only one capable of fighting Tsukuyo on even footing.
- Disc-One Final Boss: She's Nomura's last and strongest enemy in the first major arc of the series.
- Disproportionate Retribution: A flashback reveals she nearly killed a guy Nomura had befriended because Nomura had already made plans to hang out with him. For extra atrociousness, the poor guy was a bullying victim Nomura had saved earlier and Amou had just perpetuated the abuse. Flashing forward to the present, the photo Satori took of herself naked and atop of a drugged Nomura was enough for her to go after the Five Swords and their subordinates, none of whom had anything to do with what Satori did.
- Eerie Pale-Skinned Brunette: Her long black hair and very pale skin combined with her brutality make her very creepy.
- Empty Eyes: The lack of shine in her pitch-black eyes her highlights her unhinged and bloodthirsty character.
- Evil Former Friend: If you'd only ever seen the first interaction between Nomura and Amou you'd have sized them up as two people who would have become the best of friends if not more. However, that didn't even last a day until she clocked a student he was hanging out with in the jaw in a fit of classic Yandere jealousy. The phrasing of her words after that didn't help either and more than anything set them on opposite paths.
- Finger-Lickin' Evil: After landing a strike on someone, she'll often take the time to lick the blood on her hands. Sometimes she even does it during mid-battle banter.
- Foil: To Nomura. She's the only other student shown defying the Five Swords and is shown to be stronger than the majority of them. But whereas Nomura comes to befriend each of them, Amou simply strikes fear into them. While Nomura desires freedom above all else, Amou desires domination over the things she wants.
- If I Can't Have You…: She resolves that if Nomura won't be hers only, she'll kill him before he becomes too close to the Supreme Five Swords.
- Interplay of Sex and Violence: Amou's rematch with Nomura eventually breakdowns into a pure fist fight between the two. Amou in particular is shown reallly enjoying the fight because Nomura is only looking at her as they exchange punches.
- I've Come Too Far: During her battle with Nomura, she contemplates patch things up between the two of them, but not only does she find herself unable to cast aside her pride like that she also believes she's crossed him too much for that to even be possible.
- Jerkass Has a Point: After defeating Rin and Mary for the second time, she mocks swordfighters for being helpless once they lose their weapon. Not only she's right, Chidori and Seira from Hokkai High, Warabi, and Mary herself are actually trained in unarmed combat for precisely that occurrence, even if they're outmatched by her.
- Made of Iron: She uses special conditionings that allows her to harden her skin. Not even swords or Kyo-Bo's claws have done anything besides damage her clothes.
- Meaningful Name: Her given name Kirukiru is the Japanese onomatopoeia for the sound of slashing.
- Outside-Context Problem: She's a traditionally trained Uechi-ryu Karateka, in a place where everyone else is trained in swordfighting or otherwise uses weapons. It takes until her second fight with Mary and Rin, where they chance in a way to actually harm her and force her to parry, for anyone to figure out where her ridiculous toughness and slashing and stabbing hand come from.
- Proper Tights with a Skirt: She wears black tights with her school uniform.
- Razor-Sharp Hand: She fights with the "Te-Ganata" (Sword hand) technique, a technique originating from Aikido and Okinawan Karate.
- "The Reason You Suck" Speech: She gives a scathing one to Satori, stating that she doesn't have anything to make her a person and only lives to make enemies out of everyone she meets, that she's no better than a ghost.
- Red Baron: Is known as "Empress" due to defeating both Rin and Mary, two members of the Supreme Five Swords, when they came attacking her at the same time.
- Samus Is a Girl: When Nomura first met Amou, he thought she was a guy due to her wearing male clothing and the way she spoke. When they meet again, he learns that she was a girl.
- Say My Name: When Nomura saves Tsukuyo from her, charges her, and shouts her name she loses her cool and returns in kind as her Battle Aura kicks in.
- Slap-Slap-Kiss: After what devolved into a senseless brawl on campus, when confronted by Nomura at the airport she grabs him by his tie, pulls him in for a kiss before she leaves, and tells him to inform the Five Swords that he belongs to her. This only happens in the anime though, the manga has her biting his lips after the kiss as a way to tease him and her words is still ambiguous even if the meaning is clear.
- Slasher Smile: Wears this a lot when she's in the middle of battle.
- Tomboyish Voice: She spoke in a very low voice back when she was a Bifauxnen, which is part of why Nomura was convinced she was a guy.
- Villainous Crush: She has a crush on Nomura that she can only express by hurting his friends and forcing him to focus all his attention on fighting her.
- What Is This Feeling?: In the manga after her first meeting with Nomura she disappears and once she was alone, she began laughing hysterically as it felt like she was running from him. Then she frets over a pain in her chest from where he hit her during their duel in the past. She runs through many different emotions that she felt might caused her to feel like this, but angrily stops herself just as she reaches the idea that she might be in love. She later admits that she knows damn good and well that's the case.
- Yandere: The fight that got her and Nomura expelled from their previous school started because Amou attacked a boy Nomura had started become friends with. At their current academy, Amou can barely control her insanely jealous impulses as she sees Nomura becoming friends with the Supreme Five Swords. Satori sneaking into Nomura's bed naked is the the last straw and what follows is Amou going on a rampage against the Supreme Five Swords and Nomura.
Supreme Five Swords
Rin Onigawara
Rin Onigawara
Voiced by: Yūki Takada (JP), Kira Vincent-Davis (EN)
The main heroine and the first of the Supreme Five Swords that Nomura meets by means of being in the same homeroom. Never seen in public without her mask for reasons unknown. She is a practitioner of the "Kashima Shiden Jikishinkage Ryu"
- Abusive Parents: Back when she was just a child, her father cheated on her mother and left their family. This caused her mother to take out her anger on Rin, calling her ugly and "the daughter of the devil" because Rin reminded her of her unfaithful husband.
- Accidental Kiss: At the end of her fight with Nomura in the first chapter/episode, Nono hits Nomura in the head while he has Rin pinned down. The result is Rin's Sacred First Kiss being taken by Nomura.
- Accidental Pervert: In Episode 8, she goes to meet Nomura at the infirmary to apologize for falling into Satori's trap and beating up when he was innocent earlier. She realizes too late that Nomura was in the middle of getting dressed and gets to see his exposed crotch up close.
- Aren't You Going to Ravish Me?: Downplayed. In Episode 8, she tells Nomura to do whatever he wants with her as an apology for letting herself be tricked by Satori and punishing him for something he didn't do. Nomura then asks her to close her eyes and lean in. Rin thinks Nomura might kiss her, but all he does is taking her broken mask off. Rin's expression shows she's clearly disappointed with the outcome.
- Clingy Jealous Girl: She gets extremely irritated when nearly all the girls of the school fawn over Nomura. Finding a photo of him naked in bed with Satori makes her go ballistic.
- Cool Mask: She wears a broken Hannya mask. It originally was a full face mask but it was broken in half by Amou, leaving only the upper half. It broke again when she and Nomura kiss at the end of their fight, leaving the right half intact.
- Custom Uniform: The only student to wear a sailor uniform. It's implied it's the distinctive of the leader of the Five Swords, as a flashback shows her in the normal uniform and her predecessor wearing the sailor uniform.
- Freakiness Shame: Rin finds it embarrassing to let others see her face, which is why she always wears a mask. Nomura thinks it's a waste because Rin has such a cute face. It's revealed that she has worn the mask since childhood because her mother couldn't stand her face, as it reminded her of her unfaithful husband. It's only after meeting Nomura that she musters the courage to show her face again.
- I Am Not Pretty: She came to view her own face as ugly because it reminded her mother of her father, which forced Rin to hide her face with a Hannya mask. It's until Nomura tells her she has a cute face that Rin gains some confidence and tries to hide it less.
- Onee-sama: She plays the role of the respectable older sister figure to her subordinate Nono.
- Starter Villain: She is the very first opponent that Nomura faces in the series. Although she gives him a challenge, she is ultimately defeated through Nomura's display of his Signature Move.
- Student Council President: Downplayed: while she's the leader of the Supreme Five Swords, the others will try and get around her or outright fight her whenever they find it convenient, with the only clear point of superiority being the exclusive authority to issue a pass to male students (who still need it to be validated by all members). As the story goes on, however, Mary at least starts respecting her as a leader.
- Tsundere: Harsh type. She starts out as hostile at Nomura as you might expect given the premise of the series, but after he defeats her, she has moments where she softens and blushes around him. Especially when she doesn't have her mask.
Mary Kikakujō
Mary Kikakujō
Voiced by: Sayaka Kitahara (JP), Maggie Flecknoe (EN)
Mary is the second of the Supreme Five Swords that Nomura finds himself against. She uses a rapier with lightning precision targeting clusters of nerves to cause her opponents to reflexively flinch, messing up their attacks, and thus keeping herself out of their range.
- Aren't You Going to Ravish Me?: When Nomura first defeats her, she has some pretty lewd expectations for what she wants him to do to her. When he refuses to touch her she shoves her stamp between her breasts in an attempt to make him do so. Later after he defeats Satori and she explains his innocence in her scheme against him she apologizes by stripping down to her bra and telling him to do whatever he wants to her. This time he's just put off by how forward she is about it.
- Clingy Jealous Girl: Like Rin, Mary gets very angry when Nomura becomes popular with the female students and joins Rin in torturing him after finding a photo of him naked with Satori in bed.
- Covert Pervert: She really, really wants Nomura to feel her up, but she always has to give an excuse as to why it's okay instead of just telling him that she wants him to do it.
- Dual Wielding: In a pinch can use her scabbard as a second blade, a common occurrence in the old days of European swordfighting.
- Everyone Looks Sexier if French: She's noticeably quite attractive.
- Foreign-Language Tirade: She slips into her native French when riled up.
- I Am Not Left-Handed: Her fight with Seira makes her reveal two abilities she just didn't have the time to use against Nomura or Amou:
- Faced with someone using a zweihänder and who liked her usual nerve strikes she seemed at disadvantage against the superior power of her opponent's blade... At which point she started using her scabbard as a second sword, allowing her to stop her opponent's sword and counterattack.
- As she was starting to be overwhelmed and suffering a concussion after being hit with the scabbard in the head, Seira threw away her sword and tackled Mary to beat her in grappling, only to discover Mary was the superior wrestler.
- Ojou Ringlets: She has two ringlets in front of her shoulders.
- Onee-sama: Like Rin, Mary has a subordinate named Choka who calls her "onee-sama".
- Outside-Context Problem: As the only practitioner of Historic European Martial Arts (rapier specialist) in a group of Kenjutsu practitioners, nobody has the vaguest idea on how to counter her without overwhelming strenght and speed or her underestimating her opponent. In fact nobody even realizes she practices HEMA and not fencing up until she starts wielding both rapier and scabbard against Seira (another HEMA practitioner who mistook her for a fencer).
- Phenotype Stereotype: She's a half-French girl with blonde hair and blue eyes.
- Royal Rapier: Only member of the Supreme Five Swords who wields one.
- Sadist: She enjoys inflicting pain to those she deems villainous, to the point of having a private torture chamber.
- Sheath Strike: Knows how to use her scabbard in combat to supplement her rapier. Her wielding the scabbard is the moment that reveals she's a HEMA practitioner and not a fencer.
- This Looks Like a Job for Aquaman: Has a penchant for getting involved in this kind of situations:
- Nomura's knife-proof gloves protect his hands against Rin's katana without issue, but their fabric is useless against Mary's stabbing attacks.
- During the post-Warabimpics fight Warabi's Three Beasts thought they could take on either Rin or her in a corridor due katanas needing to be swung... But Mary's rapier, being thrust to strike, has no limitation. She herself points out they'd have been correct with the other Five Swords.
- In the OVA she's revealed to be immune to Satori's Confusion Fu, as it relies on her large field of view allowing her to attack a spot while looking at another, but Mary's HEMA training assumes the opponent's eyes will not be visible and so she guesses the opponent's attacks from their blade.
- Seira's two-handed sword and wrestling skills would have overwhelmed almost everyone else, as they use lighter one-handed swords and have no wrestling skills, but Mary has been trained to counter the two-handed sword and turns out to be the superior wrestler. Seira's rampage during Souda's coup is almost unstoppable because both Mary and the HEMA fighters in Souda's group are already down.
- When the school is invaded by rogue Hokkai students she finds herself on both sides of the equation when facing a fellow HEMA practitioner, as they're the only ones who know how to deal with the other's skillset.
- Tsundere: Harsh type. She can act haughty towards Nomura, but much like Rin, she becomes attracted to him after he defeats her and easily gets jealous when she sees him with other girls.
- Wrestler in All of Us: Trained in wrestling in case she loses her sword, gets tackled by an opponent who is at disadvantage in a swordfight, or finds herself at disadvantage against an enemy swordfighter and decides to change the fight to grappling, as used to be normal in the old days of European swordfighting.
Satori Tamaba
Satori Tamaba
Voiced by: Nozomi Nishida (JP), Allison Sumrall (EN)
Satori is the fourth of the Supreme Five Swords standing in opposition to Nomura. To call her odd would be a bit of an understatement, the people around her talking about her as a monster in human skin. She fights with a katana. Her blank unfocused stare leaves her opponents unable to figure out where she'll strike from next She is a practitioner of the "Keishi Ryu Kidachi Kata", the official style taught to police officers in Japan which consists of multiple techniques from different schools of swordsmanship.
- Abusive Parents: Her own parents called her a monster, and she could never understand why.
- Aw, Look! They Really Do Love Each Other: She shares a bittersweet moment with her twin sister Misogi/Satori when the latter shields her from Amou with her body. Satori crying out while shedding tears gives definite proof that she does love her sister despite her poor treatment of her.
- Big Sister Bully: She's physically abusive towards her twin sister, even being responsible for the scar in her face. It's inverted since she's actually the younger twin, but forced her sister to swap identities when they were kids.
- The Bus Came Back: Has to spend the first part of the Hokkai arc in the hospital due the wounds inflicted to her by Amou. She finally makes her return in Chapter 52.
- Can't Bathe Without a Weapon: Carries her sword into the bath with her and doesn't see anything unusual about that.
- Confusion Fu: Takes full advantage of the fact her style includes techniques from ten different schools of swordsmanship to throw Nomura off.
- Conservation of Ninjutsu: Noted to be an expert in facing off multiple enemies at the same time. She demonstrates it during the Hokkai arc, when she single-handedly takes on a dozen of invading bosozoku and takes them all out except for the one she let escape.
- Distracted by the Sexy: If she actually found it sexy at the time is up is very open for debate, but when Nomura strips naked like she'd been throughout the battle, she can't tear her eyes away from his manhood.
- Dissonant Serenity: She remains eerily calm through all situations which contributes to her creepy reputation.
- Fatal Flaw: The inability to understand the consequences of her actions. The photo she took of herself naked atop off Nomura while he was drugged pissed off Amou so much that she attacks her and the other Five Swords over it.
- Frame-Up: She has her subordinate Misogi take pictures of her naked in bed with a drugged Nomura and places the photo on his pocket so Rin and Mary turn against him.
- The Friend Nobody Likes: The other Five Swords only put up with her because of her swordsmanship skills, otherwise they'd rather keep their distance. Only Nomura has been able to genuinely befriend her, or at least be on civil terms with her.
- Full-Frontal Assault: She has zero qualms about fighting Nomura while stark naked and still dripping from the bath.
- Godiva Hair: When Nomura fights her naked in the bath, Satori's hair conveniently covers her nipples.
- Idiot Hair: She has a long strand of hair standing atop her head.
- Laser-Guided Karma: Is brutally beaten down by Amou for what she did to Nomura.
- Mouth To Mouth Force Feeding: Nomura suddenly wakes up while she's still on top of him during her Frame-Up scheme, so she immediately puts a drug on her tongue and force-feeds it to him with a kiss.
- No Social Skills: Because of her inability to understand human emotions, she repeatedly admits she doesn't know how she should act and what to feel in certain situations such as Nomura being friendly with her after he defeats her and her twin sister Misogi/Satori acting as a human shield to protect her from Amou.
- Not So Stoic: After Amou brutally slashes and stabs her sister when she was trying to defend Satori from her, all Satori can do is cry and scream in anguish before getting the same treatment.
- Perpetual Smiler: She rarely stops smiling no matter the situation.
- Shameless Fanservice Girl: When Nomura sneaks into the girls' bathroom, she has no problem being naked in front of him and challenges him to a fight without getting dressed.
- Thousand-Yard Stare: Her standard expression which she also weaponize for great efficiency in her fights, as her fish-eyed gaze makes it impossible for her opponents to read her next move.
- The Trickster: Her erratic behavior is compared to that of a "mysterious creature pretending to be human" and she likes playing tricks on Nomura to cause him trouble.
- Twin Switch: A dark version. Satori's real name is actually Misogi. During childhood, Misogi started mimicking her twin sister Satori while forcing Satori to act like her, eventually they swapped hairstyles, speaking styles, and names. The reason Satori is so hard to understand is she is imitating her sister at all times. After Amou's defeat, however, Satori/Misogi has accepted who she is and gives her sister permission to call her by her real name again.The real Satori: "Everything she has, she stole from me. My face. My name. My future."
- Unwitting Instigator of Doom: She never expected that her actions on Nomura would attract Amou's attention.
Warabi Hanasaka
Warabi Hanasaka
Voiced by: Rina Hidaka (JP), Juliet Simmons (EN)
The third of the Supreme Swords in opposition to Nomura. Instead of fighting him directly she opts to make a spectacle of her attempted correction with her own twisted Olympic events. She is a practitioner of the "Taisha Ryu".
- Antiquated Linguistics: She uses an antiquated form of Japanese, such as calling herself with the archaic feminine pronoun "warawa".
- The Bus Came Back: Has to spend the first part of the Hokkai arc in the hospital due the wounds inflicted to her by Amou. She finally makes her return in Chapter 52.
- Custom Uniform: Wears a cape with her uniform.
- Crazy-Prepared: She taught her bear to sumo wrestle and box. While the former is apparently for her death games, the latter was in case she found someone crazy enough to get in hand-to-hand with a bear and actually able to fight one.
- Defeat Means Friendship: She initially resented Onigawara for becoming leader of the Five Swords in her place, but after being defeated in their duel starts to appreciate her more.
- Eye Scream: Amou slices her eyes as a cruel response to her begging to leave her friends alone. Fortunately, she only had her eyelids sliced to the point she can't open them on her own requiring surgery as a result.
- Fluffy Tamer: Has a pet bear named Kyo-Bo. This extends her newborn cub as well.
- Going Commando: She doesn't wear underwear beneath her yukata in the Hot Springs Episode.
- Hidden Depths: She's noted to be impulsive and not the smartest member of the Five Swords. She also taught her pet bear how to boxe just in case she found someone skilled and insane enough to pick a fight with Kyo-bo and have a chance, turned her followers in a capable fighting group, proved herself a good leader and a skilled manipulator (to the point Souta knew perfectly what she was doing by insulting him and yet he had to come out and do what she wanted or it would be even worse for him), can take advantage of the Five Supreme Swords' own rules to force the others into going along with her antics, and knows how to fight unarmed and even to bypass Amou's Takemizuchi.
- I Am Not Left-Handed: When attacked by Amou's sister after the Hokkai Arc she reveals a Taisha Ryu unarmed technique capable of bypassing the Takemizuchi.
- Large Ham: The Supreme Sword with the biggest personality, without a doubt.
- Ninja: Taisha Ryu includes ninjutsu technique, and she has no qualms using them.
- Noblewoman's Laugh: She frequently and loudly laughs like an arrogant anime girl stereotypically does.
- Screw the Rules, I Make Them!: Keeping a pet bear is against the rules even in that school, so she joined the Five Supreme Swords that are tasked with enforcing the rules and are effectively exempt.
- The Resenter: As the senior member of the Five Supreme Swords she had expected to be named the new leader in her third year, and didn't take Onigawara being given the job well. It's only after losing their duel that she starts to consider that their predecessor may have chosen well.
- Signature Headgear: She wears an iconic dark pink, rabbit ear-shaped hair bow.
- Signature Laugh: "Hyooo hyo hyo hyo hyo!"
- Take Me Instead: Begs Amou to kill her instead of her friends and Kyo-bo. All she gets for her trouble is the Eye Scream listed above.
- Taking the Bullet: She takes a poisoned dart from Misogi to shield Nomura.
- Underestimating Badassery: On both the giving and receiving end of this trope:
- On the giving, she massively underestimated Nomura in the Sumo event. To her defense, she couldn't have possibly expected him to actually be willing to wrestle a bear, let alone defeat one.
- On the receiving end, Rin thinks she's harmless without her bear, and finds out the hard way she's actually a more fearsome fighter.
- Again on the receiving end, during the Culture Festival after the Hokkai Arc, Amou's sister expects an easy fight, especially as Warabi is unarmed. Then Warabi hurts her through the Takemizuchi.
- The Unfought: She doesn't fight Nomura because he opts to fight Kyo-bo on Rin's behalf while she takes on Warabi instead.
Tsukuyo Inaba
Tsukuyo Inaba
Voiced by: Natsumi Hioka (JP), Luci Christian (EN)
The last of the Supreme Five Swords, the only middle school student of the group, and the most feared of the bunch by the students of the academy. A practicioner of the "Yakumaru Jigen-Ryu", specifically of the Iajutsu techniques.
- Animal Motifs: She's associated with rabbits because of her Girlish Pigtails and her family name Inaba being a reference to the myth of the Hare of Inaba. When she and Amou face off, Tsukuyo has a rabbit Animal Battle Aura.
- Awesomeness by Analysis: She's able to deduce that Nomura has had prior experiences with fighting with a sword based on his movements and his confidence that he can engage in a sword fight unarmed. Even more awesome is the fact that she can't even see.
- The Baby of the Bunch: Being a middle school student, Tsukuyo is the youngest of the Supreme Five Swords.
- Blind Weaponmaster: Her being blind does not stop her from the undisputed best swordfighter in the Supreme Five Swords.
- Catchphrase: "How disappointing."
- The Dreaded: Everyone has the same advice for Nomura when it comes to her: Stay away from her. She will kill you. She makes good on her reputation when she presses her blade against Nomura's neck before he gets the opportunity to realize what happened. And again when she's the one person to give Amou pause when she prepares to attack her.
- Exotic Eye Designs: Her irises have multiple concentric circles in place of pupils.
- Eyes Always Shut: Because she's blind, she normally keeps her eyes closed. If she opens them, she's about to slice someone.
- Family Eye Resemblance: Her Exotic Eye Designs seem like just a minor case of reusing Koharu's eye design from the author's previous work, Shinakoi. Turns out Koharu is Tsukuyo's older half-sister and the series is a Stealth Sequel.
- Flash Step: She can move at such a speed that she appears behind Nomura before he can notice. The technique is called "Unyo", which is passed down in her family. Hers is called Unyo "Shunkou". Her two older half-siblings, Ryuunosuke and Koharu are each masters of two different Unyo, Shippu and Jinrai, respectively.
- Girlish Pigtails: She wears her hair in a long pair of twin-tails.
- Handicapped Badass: In addition to being blind, her body is very weak and by the time she properly encounters Nomura she's recovering from a cold. With that said, her being able to sneak up on Nomura before he can notice and score a hit on Amou shows that she's still very much a threat.
- Hikikomori: Was one in Shinakoi, seems to have gotten over it in Busou Shoujo.
- Hime Cut: She has blunt bangs, cheek-length sidelocks, and ankle-length straight hair. Since she dresses like a Miko, the hairstyle suits her.
- I Just Want to Have Friends: All the students are intimidated of her due to her status as The Dreaded, which seems to bother her. She takes an interest in Nomura because of how easy he can befriend the other four Swords. There's also the fact that she was formerly a Hikikomori.
- Iaijutsu Practitioner: She's a master of the iaijutsu technique of the "Yakumaru Jigen-Ryu" sword style.
- Let's Get Dangerous!: There are two ways of discerning that Tsukuyo has finally decided to get serious: one is when she opens her eyes, the other is when the temperature in the air suddenly begins to drop.
- Little Miss Badass: The smallest and youngest member of the Supreme Five Swords is also the most dangerous one.
- Mentor Archetype: Becomes one to Nomura. Nomura would've never won against Amou without her advice and she is currently helping Nomura to perfect the Madan. Nomura even calls her "Master".
- O.O.C. Is Serious Business: Normally, she's The Stoic and not one to change emotions on her face. So when she does exhibit visual emotions, something is definitely wrong. To put it in her own words:"When my anger surpasses a certain level, I smile instead."
- An Offer You Can't Refuse: As someone who studies from a similar school of swordsmanship as Nomura she's frustrated by his imperfect technique and tries to get him to be her student. When it doesn't work, she offers him the last stamp on his off-campus pass in exchange. When it still doesn't work, she later uses the same idea, only this time if he doesn't agree there would be no way for him to reach Amou at the airport before she leaves as he's still bound by school rules. He finally caves.
- Custom Uniform: She wears a traditional Japanese outfit with only the uniform's tie.
- Reflectionless Useless Eyes: Her eyes are a dim brownish-red due to her blindness.
- Signature Headgear: Her signature accessory is the string ribbon with jingle bells on her left pigtail.
- The Stoic: She's usually the calm and collected type, but Nomura easily causes many Not So Stoic moments from her.
- Sugar-and-Ice Personality: She has a reputation as a cool beauty. Those who aren't scared of getting close to her like Nomura get to see her smile and she turns out to be way nicer than anyone would think at first.
- Super-Hearing: As a trade-off for being blind, she's able to hear and distinguish what goes on in the school from far away.
- Token Mini-Moe: She's the smallest and youngest member of the Supreme Five Swords.
- Unprovoked Pervert Payback: At the end of the Hot Springs Episode, Tsukuyo unintentionally enters the men's changing room due to being blind. When Nomura walks in on her taking off her yukata, Tsukuyo makes him into A Twinkle in the Sky.
- Unusual Eyebrows: She has short patches of hair in place of proper eyebrows.
- Worf Had the Flu: Literally in this case. She cought a cold for standing in the rain for too long while waiting for Nomura after his fight with Satori. This, along with carrying a low-quality sword, almost cost her dearly while fighting Amou.
- Wrecked Weapon: Her sword gets broken in half by Amou. Justified though, since it's just a fake, and can't even put a scratch on Amou's hardened body.
Assistants of the Supreme Five Swords
Nono Mozunono
Nono Muzonono
Voiced by: Miku Itō (JP), Shanae'a Moore (EN)
Rin Onigawara's subordinate, the head of the Assistants.
- Battle Baton: She uses a baton as her weapon.
- Repetitive Name: Nono Muzunono
- Signature Headgear: She wears a distinctive hair clip shaped like an Okame mask on the right side.
- Third-Person Person: She often says her given name in place of "I".
- Undying Loyalty: To Onigawara, to the point that she'll barrel through a building full of mooks to get to her side.
- Verbal Tic Name: She has a habit of ending her sentences in "nono" when she's nervous.
Choka U. Barazaki
Voiced by: Akane Kohinata (JP), Margaret McDonald (EN)
Mary Kikakujo's subordinate.
- As Long as It Sounds Foreign: Her pronunciation of her chosen nickname in the anime is not only horrible, it's gramatically incorrect too: she calls herself "Regina della Farfalla", that is "Queen of the Butterly".
- Cool Crown: Her blonde wig is decorated by a tiara with a butterfly at the center.
- Do Not Call Me "Paul": Doesn't like to be called by her real name because the "U" kanji contains the character for "cormorant" in it. She prefers to be called "Regina delle Farfalle", "Queen of the Butterflies".
- Fauxreigner: She puts on a blond wig and colored contacts and claims a nickname in Italian to look like a foreigner.
- Hairstyle Malfunction: At one point her wig got stolen by one of Kyo-Bo's cubs, and she didn't dare to leave her room without it.
- Improbable Weapon User: She wields a whip, and it is shown to be very impractical and hard to control. Fudo Nomura points out a whip isn't a practical weapon, especially if fighting in a group or in an area with obstacles, and uses this fact to tangle it up and render it useless.
- Mysterious Middle Initial: Subverted. Her real full name is Choka Ubarazaki. She takes the U from her surname and makes it into an initial as part of her Fauxreigner shtick.
- Ojou Ringlets: Invoked with her wig being stylized in a huge pair of ringlets, probably to copy Mary.
Kyo-Bo
Kyo-Bo
Voiced by: Saki Fujita (JP), Joanne Bonasso (EN)
Warabi's bear companion and her right hand.
- Action Mom: Not only is she the mother of a young bear cub, she can sumo wrestle and is a decent boxer.
- Action Pet: Her owner taught her sumo wrestling and boxing to make her an even better battle companion.
- Art Shift: Lampshaded by Nomura, who notes that her entire design changed to look cuter and less realistic. Warabi claims that only those who let go of their prejudices against Kyo-bo will see her true form. She changes back into her vicious appearance once Warabi realizes that Amou is finally making her move and beginning to take out the Five Swords one by one.
- Beary Friendly: Unless Warabi makes her fight someone, Kyo-Bo is a quite tame and harmless bear. She's also super affectionate to humans she takes a liking to such as Nomura.
- Boxing Battler: Warabi taught her boxing in case she had to fight someone who could fight against a bear's normal fighting ways, though Nomura notes that the latter of the two must be incredibly awkward for her having to be on her back legs and it makes her punches predictable given time.
- Covered with Scars: She has large scars all over her chest and across her left eye. This is a signal that she must have been through tough fights.
- Defeat by Modesty: Nomura wins their sumo match by undoing her mawashi, which is automatic loss by sumo's rules.
- Defeat Means Friendship: After Nomura defeats her, she's taken quite a liking to him and is hyper affectionate.
- Funny Animal: She can't talk, but often walks on two legs and does humanlike things like sumo wrestling, boxing and giving her owner a bucket for her to pee in.
- Horse of a Different Color: Warabi often goes around riding on Kyo-Bo's back, even though riding a bear isn't something anyone would do in real life unless they weren't afraid to get critically injured.
- Samus Is a Girl: Though it wasn't apparent at first, Kyo-Bo is actually a she-bear. In the manga, it's revealed when her cub makes an appearance to serve as a distraction. In the anime, it's revealed earlier, when she first starts showing Nomura affection.
- Underestimating Badassery: Massively underestimated by Nomura. In his defense, how could he have expected to meet a bear capable of boxing?
- Undying Loyalty: To Warabi. She's more than willing to attack Amou, despite knowing that she won't stand a chance, if it means saving her master.
- Unskilled, but Strong: Subverted. Warabi knew well this is a weakness of bears, so she taught her boxing.
Misogi Tamaba
Misogi Tamaba
Voiced by: Nozomi Nishida (JP), Kelley Peters (EN)
An anonymous, silent student wielding a weighted blowgun and poisoned darts and wearing a hockey mask with a wig. Leader of Satori Tamaba's henchmen, she helps frame Nomura by acting as the cameraman. Her name does not correspond to any student in the school registry. Her true identity is Satori's twin sister.
- Big Sister Instinct: Even though Satori/Misogi treats her badly and stole her identity, Misogi/Satori will protect her younger twin sister with her life.
- Hiding Behind Your Bangs: She's an extremely shy girl whose long bangs cover the upper half of her face. She's hiding the scar over her left eye this way.
- Identical Twin ID Tag: She's Satori's twin sister, but it's easy to tell them apart thanks to their different hairstyles, as well as Misogi's slightly darker hair color and facial scar.
- Idiot Hair: Like Satori, she has a strand of hair standing atop her head.
- Love Martyr: Her younger twin sister scarred her face and forced her into a permanent Twin Switch when they were kids, but Misogi still loves her sister enough as to not hesitate to risk her life protecting her.
- Malevolent Masked Woman: She usually wears a very creepy-looking hockey mask and wig. She poisons people with darts and works for the most eerie member of the Supreme Five Swords. However, Misogi herself isn't really malevolent.
- Poisoned Weapons: In addition to firing poisoned darts, her blowgun itself is tipped with poison as shown when she uses it to stab Warabi.
- Satellite Family Member: Misogi is Satori's twin sister who works as her helper and she doesn't receive much characterization or focus that doesn't tie back to Satori.
- Scars Are Forever: She has a big scar over her left eye from the injury she got when her twin sister threw her off from the jungle gym when they were kids.
- Scars Are Ugly: She's horrified at the idea of someone seeing her face because they would see her large scar.
- Shrinking Violet: She's so timid that she can barely speak.
- Speech Impediment: She stutters a lot when she talks.
- Taking the Bullet: She dives in between Amou and her twin sister to keep the latter from being stabbed.
- Trickster Twins: She's Satori's twin sister and acts as her accomplice in her scheme to frame Nomura by taking pictures of him and Satori naked on bed.
- Twin Switch: She's the real Satori Tamaba. When she was younger, her sister Misogi forced her to switch places with her.
Other students
Kusou Masukodera
Kusou "Masuko" Masukodera
Voiced by: Tetsuharu Ota (JP), Andrew Love (EN)
Nomura's only male friend and roommate at the Academy.
- Bromantic Foil: Unlike Nomura, he represents the average male student at the Academy who has chosen to assimilate. He's generally portrayed as a fearful contrast to Nomura's reckless seeking of freedom.
- Et Tu, Brute?: It's revealed that he helped Satori by drugging Nomura.
- Gonk: He looks like an overweight middle-aged woman.
- Hidden Depths: It's hinted that he has a stronger will than he lets on. It's partly for this reason that he ends up crucified.
Sassa Kurasaki
Sassa Kurasaki
Voiced by: Miharu Hanai (JP), Cat Thomas (EN)
- Butt-Monkey: Nomura purposely looks under her skirt and tells the class the color of her panties before bailing out.
