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Here are the character tropes for Natural Selection. For the canon Kill la Kill characters, see here.

Main Characters

Satsuki Kiryuin

The eldest daughter of the Kiryuin family and the original Student Council President of Honnouji Academy. She went into exile in order to discover a means of defeating her mother and left the Academy in the care of her younger sister. She returns to find the Academy has become a blood soaked nightmare under her sister's tyrannical rule, and she now seeks to amend her mistakes.

Adaptational Nice Guy: As a result of having been forced to roam the Earth fending off her mother's machinations alongside her True Companions rather than operate as an inside agent, she seems to lack The Social Darwinist mindset she had in the anime prior to Character Development.
Always Second Best: Growing up, she carried a tinge of envy for her younger sisters due to them gaining all the superhuman benefits of being Life Fiber hybrids while she, as a pure human, had to work hard to keep pace with them on willpower and intellect alone. As a result, she's shown to somewhat relish in the power a Kamui can grant her, as she's finally able to match her siblings in direct combat, though she makes it a point to avoid letting it go to her head.
Anti-Hero: She has a noble goal in mind and fights against the evils of the world, but she's held back from being a true heroine due to her arrogance and stoic, Good Is Not Nice attitude. She does slowly learn to overcome these issues overtime.
Blasphemous Boast: Her declaration that she'll kill the Primordial Life Fiber is this to Ryuko and Nui, given that they worship it as a god.
Ryuko: You basically just declared that you want to kill God, you know?
Blood Oath: Enters into one of these with Kamui Senketsu, offering him the ability to devour her as he pleases in exchange for his power, so long as she can use it to save Ira from Nui's control first. She even refers to their relationship as a covenant.
Break Them by Talking: Attempts this on Mako, pointing out the hypocrisy between the actions she endeavors in while serving under Ryuko, as well as pointing out how her battle techniques are being foiled.
Broken Ace: She's a near superhuman fighter in her own right (even without Life Fiber enhancements or a Kamui), a dominating force of will, sharp as a tack, a beautiful young woman and can generally meet any goal she puts her mind to. And none of that means a jot to her, weighed down as she is by her past of familial abuses, the guilt of abandoning her sisters in order to save the world, and the crippling knowledge that she left them in Ragyo's clutches for nothing, as she is no closer to stopping the Life Fibers as when she started. Nonon even lampshades in Chapter 26 what an over-achieving, emotionally stunted mess Satsuki is and that it's practically a miracle she didn't turn out worse.
Broken Pedestal: She's become this for Houka, as his faith in her dropped considerably after all that happened at Honnouji due to her leaving Ryuko in charge. She's also become this for her sister, Ryuko, who used to love her dearly, but now wants to horrifically kill her for abandoning the family.
Byronic Hero: She's considered stunningly attractive, is intelligent, stoic, brooding, and arrogant as a result of her horrid life under Ragyo as well as having took it upon herself to carry the burden of saving mankind from the Life Fibers. She's also heavily conflicted with having to fight and potentially even kill her own sisters, both of whom she still loves and cares for despite everything that has happened between them.
Calling Parents by Their Name: As in canon, she does this when referring to Ragyo, which really gets under Ryuko's skin.
Charles Atlas Superpower: She's completely human, and yet all of her fighting experience and unparalleled willpower has netted her with superhuman strength and abilities that exceed even individuals with Goku Uniforms.
Cool Sword: Bakuzan-Prime, her sleek black katana, and two shorter swords in the forms of Bakuzan-Gako and Bakuzan-Koryu. The latter two, when used in tandem, can even permanently severe Life Fibers, as seen in her fight with Ryuko where she uses them to slice off Junketsu's eye.
Combat Pragmatist: Even though she's incredibly adept with a blade, she's also not above targeting an opponent's weaknesses or fighting dirty, such as throwing dirt in Uzu's eyes to prevent him from using Tengantsu or attacking Ryuko and Junketsu mid-transformation.
Daddy's Girl: A rather stoic version, but her admiration for her father is only rivaled by her hatred for her mother. She cites him as her inspiration for acting against her family and calls him a good man. While Isshin/Soichiro disagrees with the idea that he's a good man in any sense, he does genuinely love Satsuki the most out of his three children. After learning that Soichiro and Isshin are the same person, she hugs him and has a breakdown in his arms.
Dark and Troubled Past: She grew up heavily abused by her mother (both physically and sexually) and had to actively help her sisters stave off the influence of her mother and the Life Fibers. She later left Honnouji Academy to her sister in the hopes that the responsibility would help her stave off her family's influence, only for the opposite to happen. She's been on the run ever since and has had to live with the weight of her failures for the longest time, resulting in her having no regard for her own life.
Determinator: She will stop her mother and the Life Fibers, and nothing is going to prevent that. Even when pushed to the absolute brink of physical exhaustion, she still pushes forward, even against protest from her allies.
Exhausted Eye Bags: She works herself into the dead of night on a regular basis, and so sports a pair of these. One of Ryuko's memories shows us that this was a habit back when she still lived with the family as well.
Failure Hero: Everything she's done has amounted to constant failure. Her leaving Ryuko to run Honnouji so she could grow outside the family's influence instead helped pave the way for her to become a tyrant, her attempt at making a false Kamui to even the odds against her sister ends in her defeat, and the Naturals Election ends with Ira getting captured, her depleted of resources, and at the mercy of Nudist Beach. Despite her attempts to stop Ragyo, she's no closer to achieving her ambitions than when she started, and she's painfully aware of this.
Fatal Flaw: Pride. Satsuki's so used to being self-sufficient that she seeks to solve the Life Fiber problem by herself, refusing to ask for help even if she's heavily injured. The closest she comes to collaboration is to demand that Nudist Beach hand over the Rending Scissors, which does nothing to engender them to her cause. Her incredible strength also keeps her from believing that anyone else can fight REVOCS and her sisters to the same degree that she can. Isshin Matoi even outright tells her that if they want to make any meaningful progress against Ragyo, then she needs to suck it up and stop being so prideful.
Femme Fatalons: She's replaced her fingernails with Bakuzan blades for emergency situations. Nudist Beach removes them while she's in their custody.
Friendless Background: A combination of Kiryuin family teachings, her self-appointed position as Ryuko and Nui's Morality Chain and her own prideful self-reliance regarding the mission her father gave her meant that she didn't have any friends growing up, save for a short period when Nonon was trying to get into her good graces.
Godiva Hair: Usually wears her hair up in a ponytail, but by the end of her fight with Ryuko it bursts open, allowing her long hair to protect her extremities after she's been stripped of Kamui Fukusei.
Hates Their Parent: She absolutely loathes her mother, Ragyo, and as shown through all the Hell the CEO of REVOCS put her through as well as the fact that she intends to sacrifice mankind to the Life Fibers, that hatred is very justified.
He Is Not My Boyfriend: When Ryuko starts teasing her about her relationship with Ira, she remains adamant that they aren't a couple and that their relationship is purely one of a shared goal. Satsuki's refusal to face her sister when trying to point this out and her trying to brush the topic aside hints at the opposite.
Heroic BSoD: Suffers a minor one in Chapter 18 as the weight of everything catches up to her in a quiet moment. Between Ira's imprisonment, being surrounded by potential enemies in Nudist Beach and the knowledge that Ryuko's mental instability runs far deeper than expected, to the point of being ingrained into her and her own temporary weakness thanks to her injuries, she checks out from the world until Nonon brings her back with a supportive speech.
Heroic Willpower: Kamui Fukusei should have suffered a meltdown and devoured her the moment she put it on. Despite this, she not only forced it to heel, but took its power to fight Ryuko with. However, she ends up suffering a Heroic RRoD after the fact.
Heroes Prefer Swords: Carries three of them and is defined by her swordsmanship, as opposed to Ira's fist and firearm style and Nonon's box of tricks. This also opposes Ryuko, who usually prefers to fight with her Kamui and bare hands.
Hypocrisy Nod: She tends to commit actions that are at odds with her desire to rid the world of Life Fibers, such as creating and wielding Kamuis, however, she's well aware of it and openly acknowledges the moral dissonance of doing so.
Nui: Speaking of Kamui… Pretty bold of you to decry the Life Fibers yet use them for power. Have you no shame?
Satsuki: If there is a hypocrisy there, I wear it gladly. There is no shame in using an enemy's methods against them. This is just another tool for me to realise my ambitions.
Hypocrite: On the other hand, a more straightforward example of this is her trying to make peace with her sisters despite their opposition towards humanity while at the same time dehumanizing Senketsu as just a tool. Ryuko even calls out how it's rather galling for her to say she's unopposed to a peaceful solution while not letting the other side speak for themselves. Even she realizes that Ryuko's right and apologizes for it.
Iaijutsu Practitioner: Her fighting style with Bakuzan-Prime is this. She can destroy a Two-Star Uniform in a single cut, and can draw Bakuzan so fast as to use it as a short-distance ranged attack.
The Insomniac: Goes into the Naturals Elections having performed multiple all-nighters working on the construction of a personalized Goku Uniform and Kamui Fukusei. Nonon points out that these poor sleeping habits are not unusual for her. Chapter 19 reveals this to be a consequence of Ragyo's abuses, and that Satsuki finds it hard to sleep for long without waking up out of sheer paranoia.
It's All My Fault: Places Ryuko's Sanity Slippage squarely upon her shoulders, as had she been there and not abandoned her to search for a means to better combat her mother, she could have protected her little sister from Nui and Ragyo's influence.
Jerk with a Heart of Gold: While not an out-and-out jerk like most examples of this trope, she is very aloof and emotionally distant, not to mention highly prideful of her abilities. Still, she carries a strong comradery with her few friends and is completely dedicated to saving the world.
Katanas Are Just Better: Wields one with great skill as opposed to her sisters, who tend to use their respective bastard sword and rapier as accessories to their supernatural powers. She also tends to favor Bakuzan-Prime over her two shorter swords, despite their greater efficacy in killing Life Fibers.
The Leader: Was originally this to Honnouji Academy as the Council President. She's now this to the Life Fiber Hunters.
Lady and Knight: She's the Lady to Ira's Knight.
Lethal Chef: A downplayed case of this. While her preferred type of tea is very bitter, to the point where Nonon cannot stand drinking it, it's implied that it's supposed to be as such.
Like Father, Like Son: Like Father, Like Daughter is more like it. She's very much like her father (something that Soichiro himself acknowledges) in that both are exceedingly intelligent in their knowledge of Life Fibers and both recognize that letting them devour Earth is a bad thing. Also, they are alike in that both harbor an immense guilt for abandoning their loved ones in favor of dedicating their lives to seeing Ragyo's end, and if Ryuko is to be believed when she starts calling Satsuki out in Chapter 17, both of them also faked their own deaths. Though that last part turns out to not have been the case and was just another example of Ragyo's manipulations.
Made of Iron: Despite being only human, she's insanely durable on a level no human could possibly match. She's tough enough to go against Uzu, Mako, and Ryuko in rapid succession and survive a headbutt from Ryuko herself. Maiko even comments that the only person who could take an attack like that would be Sanageyama, and even then, he'd barely be standing after the fact. Satsuki took the attack and kept fighting for much longer.
Major Injury Underreaction: Kamui Fukusei devours the skin across her torso and groin, biting down deep enough in places that raw muscle is exposed. She walks it off for a good couple hours, right up until infection sets in and she passes out.
Master Swordsman: So much so that she can keep pace with Uzu and even best him and Mako without activating her (false) Kamui through skill and swordsmanship. She's also shown via flashbacks to have bested her younger siblings many times over in contests of swordsmanship, showing that she's superior to even them in this category.
Matricide: What she seeks to do. Her endgame is to kill her own mother, though considering how thoroughly awful Ragyo is, coupled with the fact that she's trying to sacrifice the human race to the Life Fibers, it's rather hard to blame her.
Mistaken for Gay: Mako assumes that she and Nonon are dating. They both clarify that they are not a couple.
Morality Chain: She was this for Ryuko in the past. She served as her sister's moral compass and tried to both stave off her normal selfishness and provide a positive influence separate from Ragyo and the Life Fibers. After she left, something happened that made Ryuko devolve into megalomania and tyranny.
My Greatest Failure: Leaving Ryuko behind, unable to protect her from Ragyo and coming back to Japan to find her sister replaced with yet another REVOCS maniac.
Not So Stoic: Very little fazes her, from mortal danger to tense social situations, but she's shown to crack twice over the story. Once in Chapter 18, when Ryuko accuses her of not being real family, prompting a vicious barrage of armor-piercing questions, and once in a flashback when Ryuko innocently tries to enact Ragyo's chakra techniques on her in the Kiryuin bathhouse. Ryuko's narrative notes that it's the closest she's ever seen her sister to tears.
Only Sane Man: Out of all the Kiryuins, she's the only one who sees the total destruction of the Earth and slavery to clothing as a bad thing.
Parrying Bullets: Can easily sense and deflect multiple sniper rounds in a row, as shown when she intercepts a shot aimed her way by Tsumugu and slices it in two, doing the same for the next five shots that follow it up.
Perpetual Frowner: Her default expression, as the abuse Ragyo has put her through left her deprived of the ability to feel joy.
Pose of Supplication: Performs a dogeza when confronted by Ira's mother about the injuries he received from his time at Honnouji, swearing to make right by any means.
Promoted to Parent: Of a sort. While Ragyo is very much alive, Satsuki took up the mantle of being the moral compass for Ryuko after their father disappeared, trying to push back against her more selfish whims and generally stoking her self-esteem in matters not related to REVOCS or her Life Fiber biology. It's only after Satsuki leaves Japan that Ryuko falls into megalomania.
Revenge: As in canon, she seeks revenge against Ragyo for her multitude of crimes, with the new addition of corrupting the sisters she used to know.
Riches to Rags: A variant of this trope. She willingly left the Kiryuin mega-fortune behind when she went into exile, but embezzled a sizable amount of funds on her way out, used both to fund her personal efforts and various anti-REVOCS movements. At the time the story takes place, that money is coming close to running dry.
Rōnin: Invokes the image. She dresses in a samurai kimono without armor, has no clan nor master, and was Wandering the Earth until the start of the story.
The Runaway: From the Kiryuin family. After Honnouji's founding, she went into exile from her family due to Ragyo planning to have her killed as soon as she got back home.
Samaritan Syndrome: She's placed the task of destroying the Life Fibers squarely upon her own shoulders, and blames herself for every little mishap along the way. Best exemplified in Chapter 3, where she blames herself for not setting up a surveillance network in favor of having a decent roof over her head, and goes out to battle assumed enemies in unasked penance at the first sign of potential trouble, much to Nonon's confusion.
Samurai Ponytail: Wears her hair like this, showing that she's a lady of status and a high-class warrior. It comes apart during her fight with Ryuko.
Shipper on Deck: She approves of Mako dating Ryuko, due to the former bringing out the best in the latter.
Sins of the Father: Heavily subjected to this by Nudist Beach. While their hatred for her siblings in this regard is far more justified given that they're both insane psychopaths, they primarily loath her simply because of the fact that she's Ragyo's daughter and seek to kill her as well.
Smug Super: She's one of the strongest people in the world and is highly self-assured in her abilities, as seen in her past interaction with Nudist Beach. She's actually a deconstruction, as her assuredness stems from the belief that she's the only one who can face REVOCS due to her forcing the burden of saving the world on her shoulders alone. This not only left her wanting for an ally in Nudist Beach and their resources, but it also left her with many, many issues of self-loathing because all her efforts to stop her family have so far been for not.
The Stoic: She always stays calm and composed whatever the situation due to burdening herself with saving the world and believing that she musn't falter no matter what. Of course, the mask slips occasionally, such as in her arguement with Ryuko in Chapter 18 and when her father reveals himself to still be alive in Chapter 26.
Sword Beam: Can unleash crescent-shaped cuts of azure energy from her blades.
Tall Poppy Syndrome: Subjected to this by her own mother. Ragyo couldn't stand her for how she kept surpassing Ryuko and Nui in intellectual/business fields and actively handicapped her to prevent her from showing them up. This just made her even more defiant and she instead worked even harder to surpass expectations.
Token Human: Of the Kiryuin family after her father left. She's the only member of the family who's completely human and isn't in any way infused with Life Fibers.
Twofer Token Minority: Inverted among the Kiryuin family. Among them, Satsuki is the only member that's both human and straight, with her mother and sisters being human/Life Fiber hybrids alongside Ragyo being a Depraved Bisexual and Ryuko and Nui both being lesbians.
The Un-Favourite: She's the only member of her family without implanted Life Fibers, and as such is considered a second-class citizen by her mother.
The Unfettered: Despite how much she loves her siblings, she's willing to kill them both if it saves the world from Ragyo and the Life Fibers, and will generally do whatever it takes to complete that goal. Though this is ultimately subverted, as seen in Chapter 27, where she admits that the one line she can't bring herself to cross no matter what is killing her sister, as she loves her too much to go through with it.
Weak, but Skilled: Compared to her siblings, she's this. She's superhuman in her own right, but even with Kamui Fukusei, her power pales in comparison to what Ryuko and Nui can accomplish. She gets around this issue by utilizing her swordsmanship and combat mastery in conjunction with tactically exploiting weaknesses in her opponents, such as when she targeted and weakened Junketsu in her fight with Ryuko while also taking advantage of their transformation.
White Sheep: The rest of her family is devoted to the success of the Life Fibers and their desire to consume the human race, while she seeks to tear them down and save the world. She even lampshades her status as this in Chapter 23, calling herself "the white sheep in a flock of black".
Worthy Opponent: Despite her immense hatred for the exiled Kiryuin, Ryuko can't help but see Satsuki as this. Junketsu even has to tell her mid-battle to stop idolizing the enemy.

Ryuko Kiryuin

The second child of the Kiryuin family, heiress to the Kiryuin Conglomerate, and the Student Council President of Honnouji Academy. She is the first hybridization of Life Fiber and human, and is as such the favored child of the family. Ruling Honnouji with an iron fist and through fear of her wrath, she seeks to end her sister for her perceived treachery.

Actually Pretty Funny: She found it very amusing when Mako thought Satsuki and Nonon were a couple.
Adaptational Angst Upgrade: Due to the abuse she suffered at Ragyo's hands, she is far less stable than her canon self, who, despite her Dark and Troubled Past, was still a mentally balanced individual.
Adaptational Badass: Ryuko, as the ruler of Honnouji Academy, is far stronger than she was in canon. She spends much of her time dishing out Curb Stomp Battles to anyone who tries to fight her. Her overall level of power is more in line with how it was near the end of the anime thanks to having had Junketsu for years.
Adaptational Sexuality: Ryuko's preferences in the show proper aren't really shown one way or the other. Here, she's an out and proud lesbian, though there is some implication that she might be bisexual.
Adaptational Villainy: As a consequence of being raised by Ragyo, coupled with her having undergone Mind Stitching and being put back together by Junketsu, she bears the personality she had when she was Brainwashed and Crazy in the anime (i.e. Ax-Crazy Blood Knight), only as her normal personality.
Adaptation Name Change: Since Ryuko was raised by Ragyo, her last name is Kiryuin instead of Matoi.
Always Second Best: Growing up, she could never compete with Satsuki in intellectual and business fields, always coming up either mediocre or just plain failing. Unlike the typical example, she never became envious of her elder sister because of it and instead just looked up to her all the more.
Amazon Chaser: Considering part of what attracts her Mako is that she is one of the only people outside her family that can hurt her and the attraction started when Mako kicked her through several buildings, she's this.
Ambiguously Bi: Ryuko is in a committed relationship with Mako, but it's implied that she can also be attracted to men, or at least Sanageyama. In a conversation with Junketsu, she states that she fell for Mako because she "just happened to be the first one", implying that she also could have fallen for Sanageyama had he been the first person she learned to care about.
Apocalypse Maiden: She's the perfect hybrid of human and Life Fiber, the only one capable of wielding Kamui Junketsu to his fullest abilities, and as a result of her birth is the lynchpin to Ragyo's plan to sacrifice humanity to the Life Fibers.
Armored Closet Gay: Subverted. Nonon at first assumes this of her, given that she seems to be going out of her way to try and hide her relationship with Mako, but it isn't the case. Ryuko's actually pretty open regarding her sexuality, with the main reason for hiding her and Mako's romance being more to keep Ragyo, who wouldn't approve of her dating a human, from finding out.
Artificial Hybrid: She wasn't really born a hybrid but was made one after her parents' experiments to turn her into one.
Ax-Crazy: The staggering amount of bodies in her wake and the sadism she displays every time she fights should tell you that she's not very stable in the head.
Bad Boss: She routinely beats up her subordinates for even minor failures, talks down to them, and really doesn't care for any of them save for Mako and Uzu.
Because You Were Nice to Me: Ryuko genuinely falls in love with Mako because, unlike almost everyone else, she treats her like an actual person and not someone to be feared or hated.
Better than Sex: Ryuko muses that simply cuddling is just as emotionally fulfilling as the activities she'd rather be engaging in with her girlfriend.
Berserk Button:
- Thinking about Satsuki and her betrayal of the family enrages her like nothing else.
- Talking about her relationship with Mako is another one. At best, she's viable to beat you within an inch of your life. At worst, she'll just outright kill you.
- Another thing that will send her flying into a rage is any and all attempts to convince her of Ragyo's true nature. Really, defying the narrative she's been conditioned to accept will set her off.
Big "YES!": When she first asked Mako out on a date and she agreed to it, she let out a massive "fuck yes!" when she was out of sight that could be heard all across Honno City.
Bio-Augmentation: She was originally a human, but was augmented into a hybrid of human and Life Fiber, complete with all the benefits that it grants such as Super-Strength, Super-Speed, Super-Toughness, an insane Healing Factor, Touch Telepathy, and the ability to synchronize with Kamui Junketsu.
Bloodbath Villain Origin: The burning of the Honnouji slums, when Junketsu cracked the emotionless shell Ragyo's Mind Stitching had enforced upon her, installing the uncaring, bloodthirsty personality he crafted out of her negative emotions and encouraging her to run loose.
Blood Is the New Black: Soaks Junketsu in blood during her rampage through the Honnouji slums. Ira is horrified to watch it drain away as the Kamui drinks it up.
Blood Knight: And how! She lives to fight. She spends much of her time sparring Sanageyama and, even though she loathes her now, she still can't help but love the thrill of fighting Satsuki as she's someone that can match her in battle. Even after her Mind Stitching is undone, she's still shown to be very enthusiastic about fighting, though with nowhere near the level of sadism she had before.
Blood Lust: She considers it less of a human element and more Junketsu's food source.
Blood-Splattered Warrior: Frequently. She tends to kill in such a fashion as to completely soak Junketsu in the stuff.
Blue-and-Orange Morality: Her moral compass is...pretty screwed up to say the least. For starters, she genuinely can't see that the Life Fibers devouring the human race is a bad thing. Much of this stems from how her mother raised her to see humanity as pigs and cattle for the Life Fibers, so she can't see wanton slaughter of them as bad. In a flashback, we're also shown that while she's come to terms with the idea, she's still utterly perplexed by Satsuki not wanting to sleep with her, as per the Kiryuin family traditions. Additionally, her Might Makes Right mindset combined with her upbringing as an enforcer of the Life Fibers' will has given her a case of Bad Is Good and Good Is Bad. Anything that benefits the Life Fibers no matter how horrid it is? Good. Anything that so much as pricks the Life Fibers in any capacity? Bad.
Book Dumb: When it comes to fighting and killing, she's an absolute savant. She was even able to oversee the construction of the Academy and the uniform system. However, she's a noted slacker when it comes to anything that isn't combat based and Inumuta even goes so far as to call her "a murderous moron".
Boomerang Bigot: She has a very strong Humans Are Bastards mindset thanks to Satsuki's abandonment and being brought up to view them as cattle at worst and toys at best, yet at the same time, she's half-human.
Boyish Short Hair: She's a tomboy who keeps her hair cut short. She laments that, thanks to her red strands that signify her Life Fiber heritage, her hair doesn't look good long like her sisters' hair does.
Break His Heart to Save Him: Discussed in Chapter 24. She tells Nui that she intends to break up with Mako, but her reasoning is because, given her past as the Tyrant of Honnouji, she feels she doesn't deserve Mako and wants to spare her from the pain of being with her. Another reason is, given all the horrifying ways Nui wants to kill and torture Mako with, cutting ties with her would assure that Nui doesn't go through with that.
Broken Ace: From the outset, it looks like she's got it all. She's a member of the most powerful family on the planet, is stunningly beautiful, the perfect hybrid of Life Fiber and human, and is a prodigy in combat. Beneath it all is a psychological mess of a woman who's violent, sadistic, abused by her mother, perpetually lonely, and incapable of understanding normal human interaction.
"Never before in [Mako's] life had she seen someone so powerful and amazing look so sad."
Broken Tears: She openly wept when she believed Satsuki to be dead. Uzu reminisces that Satsuki's memorial assembly was the first and only time anyone saw her cry.
Brought Down to Badass: She boasts that even while weakened from her battle with Satsuki, she'd still kick Houka to the curb. Inumuta doesn't deny this, openly admitting that even at her worst, she's still stronger than anyone else at Honnouji Academy, hence why he relied on Nudist Beach catching her off-guard and freezing her rather than face her directly.
Butch Lesbian: Ultimately played with. On the one hand, her standard dress-code falls more in line with the Straight Gay characterization. On the other hand, her personality, being an aggressive tomboy who loves fighting, falls more firmly into this category.
Byronic Hero: A darker variant compared to Satsuki due to her status as a Villain Protagonist. Ryuko's got looks, unrivaled might, and a cruel, dangerous attitude towards almost everyone, maliciously killing those who either oppose her or just plain piss her off. When she's not doing that, she's brooding and almost always looking for reasons to hate the world, and yet she's also still capable of empathy and love, evident by her relationships with Junketsu, Uzu, Soroi, and Mako. Not to mention she has more internal conflicts regarding facing Satsuki than she'd want to admit. After her Mind Stitching is undone, she starts being a more straightforward example of this trope.
The Caligula: Moody, violent, utterly detached from the value of human life and in charge of what should have been a bastion against the Life Fibers. Every month she throws city-wide slaughter-fests for her own amusement.
Came Back Wrong: A non-resurrection based example. Prior to Ragyo's Mind Stitching and Junketsu reassembling her emotions, she was mostly like her canon-self, albeit much more of a Spoiled Brat with a Darwinistic mindset and low view of humanity brought about by her upbringing under Ragyo. After the fact, she becomes a ravenous, psychotic mass murderer who thrives off killing as many people as possible in gruesome ways for her twisted enjoyment.
The Chosen One: Mentioned in Ryuko's POV during Chapter 18. She was brought up to believe herself to be this trope, as Ragyo taught her that the Life Fibers selected her to be the one who shall carry on their will. The Life Fibers even see her as this, with Nui calling her the "beloved Star Child" as well as "the eternal dawn, the one who sings the song of new life". In reality, she's less of this and more of a bio-engineered Apocalypse Maiden.
Combat Stilettos: This is more prominent than canon since she has them both when Junketsu is synchronized with her and when he isn't. It's also more noteworthy since she has her sister and mother's distinct heel "CL-ACK!" when she makes an entrance.
Cool Sword: Sorority, a bastard sword with a pure white blade and gold trim.
Corporal Punishment: Ryuko's favored way of punishing those who fail her is using a kendo stick to beat them bloody. It comes back to bite her when she's forced to do the same to Mako after Nonon escapes the Safe Zone.
Creepy Monotone: Spoke like this when Ira confronted her during the burning of the Honnouji slums, as part of her complete detachment from reality.
Creepy Shadowed Undereyes: Synchronizing with Junketsu puts red shadow under her eyes, as it did when she was sown into him in canon.
Crush Blush: Ryuko asking Mako on a date has her blushing a lot when she awkwardly tries to ask her out.
Dating What Daddy Hates: She's in a loving relationship with Mako, who is a human and part of a species that Ragyo detests and is planning on sacrificing to the Life Fibers. Chapter 19 reveals that Ragyo doesn't even know about Ryuko's relationship with Mako, with Ryuko herself indicating that she's aware that her mother would never approve of her girlfriend.
Despair Event Horizon: Chapter 19 reveals that Satsuki leaving led to this, as she devolved into melancholy and neglected her health for a week and wallowed in sorrow. Then Ragyo Mind Stitched her...
The Dreaded: She rules Honnouji through fear of her power. No one wants to even try anything with her and the minute she shows up, it usually means people are about to die in droves.
Death Glare: Her default expression whenever something doesn't go her way, or whenever Satsuki is involved, is to give off a glare of pure Killing Intent. She levels a particularly vicious one at Maiko in Chapter 5, when she's forced to punish Mako for letting Nonon enter and escape the Safe Zone.
Dull Eyes of Unhappiness: Combined with her Creepy Monotone during her the burning of the Honnouji slums.
Dumb Muscle: How most of the Elite Four (exception of Mako and Uzu) see her. Inumuta calls her "a murderous moron" and Gamagoori notes that she's a slacker in more intellectual fields. That being said, she's not an idiot since she did establish the uniform system of Honnouji Academy and oversaw its construction. And the "muscle" part goes without saying given how ludicrously powerful she is.
Eating the Eye Candy: Even in her most detached moments, she tends to have a healthy appreciation for Mako's figure, as seen in flashbacks where she stared quite a bit at her chest.
Even Evil Can Be Loved: Quite a few people care for her despite how screwed up she is, and these people end up humanizing her as a result.
- The most prominent is her girlfriend, Mako. She absolutely loves Ryuko and tries to help her move past her problems, with their relationship being at the heart of her story.
- Satsuki, of all people, ends up being this for her, despite how much she hates her now. Flashbacks show how much they cared for each other and that Satsuki blames herself for how Ryuko turned out. Even at Ryuko's worst, Satsuki still tries to reason with her sister and save her from what she's become. Despite how much Ryuko hates her sister, she's also shown to have been desperate for her approval and a part of her still desires that affection from her.
Even Evil Has Loved Ones: She's a mad, tyrannical Blood Knight, but that doesn't mean she's incapable of loving others.
- Her relationship with Mako is shown to be her most redeeming quality. She genuinely loves and cherishes her girlfriend and will actively curb her sadistic tendencies for nothing more than to make Mako happy.
- She loves and cares for Junketsu, having known him almost her whole life and having bonded with him at an early age. She's shown a strong comradery with him when they fight Satsuki together.
- Despite the Villainous Incest present in their relationship, she does genuinely love her younger sister, Nui. Seeing her when she was in a dire situation almost immediately puts her at ease.
Even Evil Has Standards: Implied. Her horrified comparison of Satsuki creating a false Kamui to her making a dress out of stillborn babies and stem cells does indicate that even she would find no joy in committing infanticide.
Evil Has a Bad Sense of Humor: Part of her attempt to break the ice with Mako and ask for a date involves an off-the-cuff cannibalism joke. To her credit she immediately shuts down, realizing that it wasn't the best way to ask.
Evil Virtues:
- Love. For as messed up as Ryuko is, she is genuinely capable of loving and caring for people with all her heart. Her relationship with Mako in particular is depicted in a loving, tender light and helps to humanize her.
- Valor. While it's rare for Ryuko to find her back against the wall, given how ludicrously powerful she is, when she's faced with adversity, she doesn't back down an inch. When Satsuki managed to put her in a bind and make her struggle for the first time, she still fought tooth and nail to win the battle. Even when she's against her own mother, someone who so thoroughly outclasses her that it isn't funny, she doesn't hesitate and fights head on despite the gap in ability. Ryuko is many things, but a coward is not one of them.
Faux Affably Evil: Zig-zagged. On the one hand, any affability she puts up is usually a prelude to her violent outbursts, with her putting very little effort in hiding her disdain for almost everyone around her. On the other hand, whenever she's around Mako, Uzu, or Soroi, her affability is genuine.
Femme Fatalons: Synchronizing with Junketsu gives her a pair of heavy gauntlets with clawed fingers, which are her main weapons in combat.
Flirtatious Smack on the Ass: She gives one to Mako when they first meet.
Flying Brick: Junketsu allows her to fly at extreme speeds when they synchronize and to say she's absurdly strong and tough would be an understatement, considering the fact that she can punch through meteors and almost nothing can so much as put a dent in her.
Freudian Excuse: Two words: Ragyo Kiryuin. Pretty much the biggest reason for her madness and psychopathy can be traced back to her mother, who manipulated and conditioned her into being as cruel as possible. It also really doesn't help that Ragyo also subjected her to multiple mind wipes that kept her from seeing Satsuki's love for her, cutting Ryuko off from the one positive outlet she had growing up. It's later revealed that Ragyo used Mind Stitching on her and left her a broken husk, leaving Junketsu to desperately try and piece her back together. Unfortunately, his own lack of understanding of human emotions led to him put her back together with her worst emotions.
Freudian Excuse Is No Excuse: After Mako learns about Ryuko's alien nature and origins, she gets the idea to become a Positive Friend Influence to her to help redeem her from what she's become. Inumuta is quick to point out that at this point, whatever excuse she has doesn't matter. She has the blood of countless people on her hands and has taken sadistic glee in the destruction she's caused. Even if she can be made better, she must answer for the things she's done. During Chapter 24, Ryuko admits to Uzu that she was rotten well before either the Mind Stitching or any of the Life Fiber nonsense became an active part of her life and that she believes she doesn't deserve sympathy for what she's done.
Friendless Background: A combination of Ragyo's teachings about humanity's inferiority and her own Life Fiber nature ensured that she didn't have any friends growing up.
Hair-Trigger Temper: It doesn't take much to make her upset. According to Mako, she has been getting better about this, getting angry less often and cooling off quicker. Not that we see much of this in the story proper, since she's perceptually pissed off at either Satsuki or Ira.
Half-Human Hybrid: Like canon, she's a hybrid of human and Life Fiber, with her frequently being called a perfect hybridization.
Hated by All: She's the ruler of Honnouji Academy and she really doesn't have any good standing with anyone there. The only people who genuinely like her are Mako, her girlfriend, and Sanageyama to an extent. The rest are either plotting her downfall or live in absolute fear of her, hating her but being too terrified to do anything to her. This is made especially clear after her Mind Stitching is undone while she's in Nudist Captivity. Barring Satsuki, Mako, Isshin/Soichiro, Uzu, and Nui, pretty much everyone hates her, with people either spitting or sneering in her general direction. Uzu even comments that 99% of anyone still alive in Osaka hates her living guts.
Hates Their Parent: Subverted. After her Mind Stitching is undone, she admits to Satsuki that while she's thoroughly pissed at Ragyo for what she's done, she can't bring herself to hate their mother like Satsuki can, as Ragyo was still the one who raised her.
Healing Factor: Unlike her canon self, who only unlocked this at the end of the story, she has this in spades, and takes advantage of it whenever she can.
Hearing Voices: As a child, she tended to hear the pull of the Life Fibers driving her to be more aggressive when playing with kids on the playground. However, talking with and being connected to Junketsu caused these voices to diminish over the years.
Hidden Heart of Gold: Yep. Somewhere buried deep beneath all her madness, sadism, and blood knight nature is a heart that can genuinely cherish and care for others. It primarily comes up most around her morality pets.
Holy Backlight: Inverted. She has the Kiryuin backlight that her sister and mother have, but hers is a demonic blood red, reflecting her sadism and bloodlust. In flashbacks, it used to play this straight, with Mako's POV describing it as "a beautiful shade of warming red" akin to the sunset.
Humans Are Bastards: A decent part of her mindset (especially when it comes to Satsuki), when she's not considering them cattle.
Hypocrite: Ryuko here tends to be very prone to self-contradiction.
- Despite her Might Makes Right, Social Darwinist mindset, she actively protects Mako and the Safe Zone during the Naturals Elections. When accused of favoritism she shrugs it off, telling the crowd to kill her and take her place so they can pick their own favorites. She also keeps Uzu on the council and kicks Houka out, despite the former losing his first match in the Sudden Death Runoffs and the latter winning his.
- She loathes anything that could bring harm to the Life Fibers, but as Satsuki points out to her, her mindless killing of people is actually just as detrimental to the Life Fibers, since they are trying to consume humanity and Ryuko's senseless killings deprive them of their food.
- A milder example is her relationship with Mako. With Ryuko's hatred of humanity and her planned end goal of sacrificing them to the Life Fibers, it seems counter-productive to form a close personal relationship with a human. Unlike the others above, Ryuko is very self-conscious of this act of cognitive dissonance, and claims to have made plans to actually reconcile her relationship with that of her end goal.
I Am a Monster: After her Mind Stitching is undone, she becomes highly self-loathing of her past actions as a tyrant, seeing herself as a monster undeserving of sympathy and makes attempts to cut ties with the few people who still care for her to spare them from any pain of being near her.
I Have Many Names: Tyrant of Honnouji, REVOCS Scion, and High Queen of Hell, just to name a few that have been given so far.
I Just Want to Be Normal: It's never outright said, but when Nonon alters her appearance to look like an average person so they can escape Nudist custody, Ryuko completely marvels how she looks no different from an ordinary teenage girl. This implies that she desires to be a normal person more than she wants to admit.
In a Single Bound: While she doesn't really need to do this seeing as she can fly with Junketsu, it gets brought up by Satsuki that even as a child, she could effortlessly jump to the roof of their family estate and back down with no issues at all.
Innocently Insensitive: Because of her inability to understand Satsuki's issues with 'purification', her complimenting her elder sister's performance on her during 'connecting' falls heavily into this trope.
Insecure Love Interest: Chapter 26 shows that she's this regarding her relationship with Mako. As a result of all her past atrocities, she feels Mako is only with her because the former No-Star feels forced into the relationship. However, Mako makes it clear that she loves Ryuko in spite of her flaws.
In-Universe Catharsis: In her own words, finally battling and defeating her sister on the field of battle is this for her.
Invincible Villain: She's so far above the rest of the cast in terms of power (barring her mother, Ragyo) that only Satsuki can match her on the field of battle (and Uzu, to a lesser extent), and even then that involves throwing her off her game by talking her down, taking advantage of Ryuko's transformation sequence and doing damage to Junketsu instead. And Ryuko still wins, despite having all of her weaknesses taken advantage of.
I Reject Your Reality: As seen in her extended conversation with Satsuki in Chapter 18, Ryuko is borderline incapable of acknowledging the reality around her when it disagrees with the narrative she's been fed by Ragyo. Anytime she's forced to face it, she either deflects, ignores, lashes out, or misremembers. When the conversation escalates and Ryuko becomes less and less able to deny things, it causes her to shut down completely and fall into an unconscious slumber.
It's Not You, It's My Enemies: Well, "enemies" isn't exactly the right word, so much as "fucked up family" is. Part of why she seeks to break up with Mako is because Nui's disturbing fantasies of all the terrible killings and tortures she wants to put Mako through leads Ryuko to believe that the best way to prevent that is to cut ties so that Nui won't go through with it.
It's Personal: To say that she's got issues with Satsuki abandoning the family and rising up against the Life Fibers is an understatement. It's so much this that she changes the final battle of the Naturals Election so that she can deal with Satsuki on her own and even brandishes Sorority, the sword Satsuki gave her, just so she can use it to kill her.
I Want My Beloved to Be Happy: In Chapter 26, she tries to break things off with Mako, believing that she feels forced into their relationship and wanting her to have the chance to be with someone who'll truly make her happy. Of course, she's caught off guard when Mako explains that she is truly happy with her, flaws and all.
Jerkass: Rude, crude, smug, and an all around Bad Boss who beats the shit out of those who fail her even for minor slights. Pretty obvious that she's this.
Killing Intent: Can make an entire stadium pause with nothing more than bared teeth and a seething glare aimed at her sister.
Lady Swears-a-Lot: She makes her canon self look outright tame. Damn near every time she talks, there's always a myriad of cursing involved on her end. Flashback's show that this is just natural for her, as even when she was a child, she was shown to be a major potty mouth.
Light Is Not Good: She wears Junketsu at almost all times and is heavily associated with the color white. However, she's a bloodthirsty psychopath who rules with an iron fist.
Lonely at the Top: She's the ruler of Honnouji and heiress to the most powerful family on Earth, but she's perpetually lonely and has no friends to speak of. It wasn't until Mako that she made a meaningful connection with someone outside her family.
Love at First Punch: Ryuko's infatuation with Mako started when the latter somehow managed to kick her through a building, despite only being a No-Star.
Meaningful Name: Despite not being abandoned by her mother in this story, her name (meaning "abandoned child") still fits. Her sister abandoned her due to Ragyo's plans to kill her off, and said abandonment was the lynchpin that led to her becoming the monster she is now. This goes double if one includes Soichiro's abandonment as well.
Middle Child Syndrome: Inverted. She's the middle child and is given the most "love" and "affection" of the three Kiryuin sisters.
Moral Myopia: A consequence of her mindset is that she's very prone to this. She accuses Satsuki of wanting to commit genocide against the Life Fibers, which she is admittedly trying to do, except the Life Fibers are also trying to do the same towards the human race, and she knows this.
Mundane Utility: She can emit Life Fibers from her body, particularly her hands, and likes to use them for basic things like waking Mako up in the morning or helping Uzu to his seat when he's too injured to move by himself.
Never My Fault: Downplayed, given that she can acknowledge when she's in the wrong about something, but it takes a lot of effort on her part to swallow her pride and genuinely say sorry for anything.
Not a Morning Person: Inverted. She's shown in Chapter 4 to be very much an early riser.
Not Good with Rejection: Considering her reaction to Mako's initial rejection was to burn down the Honnouji slums a second time, this is putting it mildly.
Not So Invincible After All: Ryuko spends much of the story as an unstoppable Invincible Villain who curb-stomps anything or anyone who tries to fight her. Her battle with Satsuki pushes her to her limits and her opponent even permanently cuts off Junketsu's eye, causing her immense pain. She still wins in the end, but it shows that she's not unbeatable. Maiko even lampshades this when she sees it.
Maiko: Holy shit. She can be hurt.
Obliviously Evil: Despite her fitting so many tropes that would fall under Obviously Evil, her Might Makes Right mindset and her Blue-and-Orange Morality make it so that she's incapable of recognizing that she's the villain despite all the horrid things her and her family have done.
O.O.C. Is Serious Business: Ryuko normally thrives off fighting. Uzu finds it very concerning when her heart wasn't in their sparring matches after she visited her family. Right after the fact, she burns down the Honnouji slums.
Play-Along Prisoner: As of Chapter 23, she and Nui are willingly imprisoned within Nudist Beach's Headquarters, but they treat it as more of a holiday, even making modifications to their cells. It's pretty apparent that they could walk out whenever they wish, and they make no bones about it.
Psycho Lesbian: Subverted in the sense that her state of mind and her sexuality are completely separate. If anything, her relationship with Mako is depicted and shown to be one of her redeeming qualities. After her Mind Stitching is undone, she largely drops the "Psycho" part.
Rank Scales with Asskicking: She's the student council president of Honnouji, the next inheritor of the Kiryuin clan, and the heiress of the REVOCS conglomerate. She's also absurdly powerful, to the point where the only person who could defeat her at her best is Nui, and the only person outright superior to her is her mother, Ragyo.
Reformed, but Not Tamed: Even after her Mind Stitching is undone and she's putting an effort to atone for her past actions, she's still very much a rude, smug ass who admits that she isn't quite convinced that most humans aren't cattle for the Life Fibers. But she's at least putting her best foot forward to try and understand both sides of the conflict to see if there can be a middle ground between the two.
Reluctant Ruler: She was under the understanding that she would be serving under Satsuki as the Vice President of Honnouji. Due to Satsuki's plans for exile, Ryuko ended up as the President instead. She's shown to have been conflicted about whether she could actually rule properly. In the current timeline of the story, she's grown beyond this in the worst possible way.
Revenge: She wants nothing more than to beat Satsuki black and blue, then drag her home to Ragyo for the crime of betraying the Kiryuins and waging war against the Life Fibers.
Sanity Slippage: She wasn't always an insane tyrant, but Ragyo's conditioning, Satsuki's abandonment, and being Mind Stitched and hastily put back together by Junketsu drove her to complete madness.
Scary Teeth: Whenever she gives off a Slasher Smile, her teeth are described as practically being razor sharp fangs.
Sexual Euphemism: She tends to refer to the act of sex as 'Connecting'.
Shipper on Deck: Her ribbing and teasing of her older sister shows that, even if she doesn't like him, she's pretty onboard with the idea of Satsuki and Ira getting together.
Shooting Superman: Ryuko opens up the Naturals Elections by fighting a group of bounty hunters, thugs and mercenaries trying to claim the money Nudist Beach put upon her head. For some reason, the gentlemen in question brought standard firearms and not much else. It ends poorly for them.
Single Woman Seeks Good Man: Same-sex variant. While Ryuko originally just lusted after Mako for her looks, it was Mako's kindness and the fact that she treated her like an actual person that led to the tyrant of Honnouji genuinely falling in love with her.
Slasher Smile: Her usual grin, which tends to terrify those who see it.
"And everyone switched, staring up at Ryuko, her face split and showing far too many teeth as the sky began to pump poisonous red, Junketsu's epaulettes thrilling in the wind."
Slouch of Villainy: How she tends to sit upon her throne. Maiko even lampshades it in her POV.
Spoiled Brat: As a child, Ryuko was rather self-entitled, refusing to apologize when she hurt others by accident and would only do so when Satsuki demanded it, and even then, she didn't mean it. Not to mention that when she wanted to play the role of the prince in a production of Cinderella, she got the part partially by threatening to beat up all the other auditioners if they showed her up. This only got worse as she got older, to the point where she became a Psychopathic Womanchild. Gamagoori thinks of her as "a spoiled corporate princess with no concept of refusal", and even Uzu says that she was "the epitome of a spoilt rich kid".
Strong and Skilled: For as much as she's considered lackluster in intellect, when it comes to outright fighting, she's as talented a swordswoman as she is powerful. Sanageyama openly respects her combat prowess and blade work.
Super-Strength: Considering she can shatter meteors half the size of Honnouji's main tower with about as much effort as it takes someone to lift a sheet of paper, she's got this in spades.
Sword Beam: Smashes Sorority into the ground and creates a blast of energy to catch Satsuki with during their fight.
Teens Are Monsters: She's The Caligula and a mass-murdering psychopath who's still very much a teenager.
This Is for Emphasis, Bitch!: Happens when she repeatedly punches Satsuki against the cage wall in their fight:
Ryuko: Bitch, bitch, bitch, bitch, bitch!
Thousand-Yard Stare: Sported a perpetual one of these in the past. Mako describes it as "dark, wild spirals like loose wool."
Thou Shall Not Kill: She normally couldn't avert this harder if she tried to, but if Mako's around she will pull her punches and let her opponents go freely.
Tin Tyrant: Junketsu's synchronized form has more armor than cloth and she's well, a tyrant.
Tomboy and Girly Girl: The Tomboy to Nui's Girly Girl.
Took a Level in Kindness:
- Downplayed. She's still by no means a good person, but her relationship with Mako has helped lighten her up. Maiko muses that her body count is much smaller than what it was in the early days of the Naturals Election and she's more willing to spare people.
- Played straight after Nui undoes her Mind Stitching. She stops being perpetually angry and takes the time to listen to those around her, not to mention works to at least try and make amends.
Too Unhappy to Be Hungry: News of Satsuki's betrayal left her so deep in shock, sadness and suspicion that it might be a lie created by Ragyo that she barely ate anything for a whole week.
Touch Telepathy: One of the benefits of being a Life Fiber hybrid is the ability to connect to the minds of other Life Fibers via skin contact, which she's shown using to communicate with both Ragyo and Nui.
Trademark Favorite Food: She's fond of raw lemons and black coffee.
Tragic Villain: Ryuko may be The Caligula, but she's just as much a victim of Ragyo's abuse as Satsuki is, having actively been brought up to see mankind as beneath her, preventing her from seeing her actions as wrong. Satsuki sees Ryuko as this and genuinely wants to save her sister, but her inability to see her family for what it truly is just keeps driving her deeper into the pit.
Treachery Is a Special Kind of Evil: Ryuko's administration does countless evil things on the daily which she blinks off without thinking about it. However, Satsuki's betrayal of the family is considered by her to be completely beyond the pale.
Tyke Bomb: Ragyo has raised her to be her successor to the will of the Life Fibers and a weapon against humanity to ensure REVOCS' dominance.
Uptown Girl: She's this to Mako. She's the scion to the wealthiest, most powerful family in the world, while Mako (at least prior to becoming a Three-Star) is from the Honnouji slums.
Used to Be a Sweet Kid: Flashbacks show that Ryuko was an adorable, if bratty child growing up who loved and cherished her sister. These days, she's so bloodthirsty and deranged that the sweet kid she used to be is long gone, and she just wants to see her sister bleed out.
Villainous BSoD: Having so many armor piercing questions and responses forced on her during her argument with Satsuki in Chapter 18 causes her to mentally crash and fall unconscious for an indeterminable amount of time.
Villain Protagonist: She's as much a main character as Satsuki is and is a violent, sadistic ruler. After she's freed from her Mind Stitching, she's no longer this trope.
Virgin in a White Dress: Inverted, she's normally dressed in the white Junketsu but is sexually active thanks to the Kiryuin family upbringing.
"Well Done, Son" Guy: Beneath her burning hatred for her sister, Ryuko is in actuality desperate for Satsuki's love and affection, believing that she was never shown any no matter what she did. When she's briefly shown Satsuki's perspective, it's revealed that she always had it, but Ragyo's manipulations prevented her from seeing it.
When She Smiles: She usually has either a Psychotic Smirk, angry scowl, or a Slasher Smile adorning her face. Whenever she's alone with Mako however, she lets out a genuine, heartfelt smile, showing how much she cares about her.
Woobie, Destroyer of Worlds: Ryuko, despite being a tyrant groomed to serve as a living weapon, wants to be loved by others and seen as herself but doesn't know how to properly interact with people in humane ways because of how she was raised. In the end, she's as much a byproduct of Ragyo's horrific abuse as Satsuki is, having had her sense of morality so twisted that she's incapable of seeing that she's the bad guy even as she's burning and mutilating innocent people. It's also made clear that Satsuki, for as much as they've drifted apart, still wants to save her sister from what she's become.
The Worf Effect: Throughout the story, she's been shown as an utterly unstoppable Invincible Villain, with Satsuki needing everything she had just to stalemate her, and she still lost at the end of the day. In a flashback in Chapter 22, when Ryuko attacks Ragyo in revenge for having her memories tampered with, she's subjected to a Curb-Stomp Battle so one-sided that she doesn't want to remember any of it.
Worf Had the Flu: The only reason Ryuko was easily subdued and captured by Nudist Beach was because she just finished battling Satsuki and was both heavily injured and exhausted.
Wrestler in All of Us: She hits Satsuki with a missile dropkick during their fight.
Young and in Charge: She became the leader of Honnouji at the tender age of fifteen. At the time the story takes place, she's only seventeen.

Life Fiber Hunters

Ira Gamagoori

One of Satsuki's Life Fiber Hunters and her most devoted ally. Originally serving Ryuko at Satsuki's behest, he was beaten and kicked out for opposing Ryuko's growing sadism. He now serves Satsuki in her quest to defeat REVOCS.

Achey Scars: His scars tend to start paining him whenever Ryuko and her injustices are involved, usually urging him to be more reckless in his desires to retake Honnouji from her.
Armor Is Useless: Subverted. It's his main defense and keeps him quite safe. It's only after enduring a week of non-stop fighting, the Naturals Elections, and the subsequent fighting afterwards that it falls apart.
Attack of the 50-Foot Whatever: In Chapter 20, the result of the experiments done to him mutated him into a three-story tall monstrosity.
Badass in Distress: He gets captured and tortured by Nui in Chapter 15.
The Big Guy: As you'd expect, he's this to the Life Fiber Hunters, although his size-changing ability from canon doesn't exactly come across in text. As of Chapter 20, he shifts to being The Brute for Nui.
Bodyguarding a Badass: He serves as Satsuki's protector, but considering how insanely tough she is even without factoring in her false Kamui, it's not like she really needs a bodyguard.
Bodyguard Crush: Sports one for Satsuki, not that she really needs his protection. Not that he has the courage to tell her either.
Body Horror: Ryuko skinned his back, and after he was mutated, those same wounds constantly have liquid flames leaking out of them.
Brainwashed and Crazy: Chapter 20 shows that alongside his torture, he was also driven insane and experimented on, turning him into Nui's pet monster.
Catch and Return: Throw a projectile at Ira and he'll send it right back at you, be it a missile, a fireball, or a meteor.
Combat Medic: More combat than medic, but he serves as the first aid for Satsuki's team.
Cannot Spit It Out: He has romantic feelings for Satsuki, but his own shyness in such matters prevents him from telling her.
Covered in Scars: Ryuko beat him within an inch of his life and flayed the skin off his back. He's very much shown to be riddled with closed wounds. They are opened up as part of his transformation into Nui's Titan Construct, perpetually leaking liquid fire.
Covert Pervert: He puts a lot of effort in trying not to stare at Satsuki while she's wearing Senketsu, which is already rather revealing even when he's not in his Kamui state.
Curb-Stomp Battle: He delivers one to the Shooting Club and later the Automotive Airsoft Club.
Everyone Can See It: Nonon tends to rib him about his Bodyguard Crush, and Mako picks up on his feelings for Satsuki in a single conversation.
Everyone Has Standards: Part of the reason he dislikes Ryuko is she allowed delinquents like Beros Goyle and Ryosuke to become presidents.
Face–Monster Turn: In Chapter 20, he becomes one of the villains, but only because he was tortured, brainwashed, and mutated into a giant monster.
Helmets Are Hardly Heroic: Subverted, as he frequently takes to the field wearing one. The only time he doesn't is in Chapters 1-3, since he was only on a scouting mission and wasn't expecting to be seeing combat.
Heroic Bastard: In keeping with his Light Novel backstory from canon, his father was an American soldier who's been absent ever since Ira's birth. He's shown to be a little more bitter about it here.
Heroic Sacrifice: Despite a lack of weapons and his armor in tatters, Ira throws himself at Nui to keep her from tearing the Safe Zone apart, allowing Mako and Nonon to escape her wrath. His reward is to be captured and thrown into Honnouji's detention halls.
Honor Before Reason:
- Steps in to save the Uniform Thief despite Maiko and Ryuko being nearby, out of no greater desire than not wanting to see another body on the pile of Honnouji.
- Acknowledges that going to save Satsuki from Nui is a terrible idea, since he's lost his weapons and most of his armor at that point thanks to the Sudden Death Runoff. He prepares himself to go anyway because it's the right thing to do for the Anti-Kiryuin resistance efforts.
Huge Guy, Tiny Girl: The huge guy to Nonon's tiny girl.
It's All My Fault: Blames himself for the loss of the Honnouji Slums, despite only being able to arrive to stop Ryuko when the blaze was at its peak.
Knockout Punch:
- He delivers one of these to the Biology Club President when he protests the dismantling of his experiments.
- He's on the receiving end of this at the hands of Nui when she tires of hearing him talk after she's beaten him in the Safe Zone.
Lady and Knight: He's the Knight to Satsuki's Lady.
Mighty Glacier: He's a big guy and pretty slow compared to the rest of the cast, but he takes damage in his stride while working the opponent down.
Playing with Fire: As seen in Chapter 20, his Life Fiber Titan form is characterized by fire and heat, from liquid fire leaking from his scars to breathing flames as an attack.
Power Armor: Dons a suit forged at his uncle's ironworks. It allows him to go toe-to-toe with even Three-Star Goku Uniforms.
Power Fist: His main method of attack.
Raging Stiffie: Suffers an uncomfortable one when Nui, disguised as Satsuki, uses her sister's naked form to mock him. It dies down when he realizes who he's actually faced with.
Serious Business: He takes the ideal of driving and car maintenance very seriously, tearing a strip off the Automotive Airsoft Club for twisting their vehicles into weapons and looking down on Aikuro's car. He also has a strong admiration for Isshin/Soichiro's high-tech RV when Satsuki and Ryuko find it weird.
Shock and Awe: Other than just straight punching, he can also release controlled bursts of lightning from the Power Fist.
Sitcom Arch-Nemesis: His devotion to rules and discipline drives Ryuko up the wall, to the point where she's not sure if she hates him more or less than Satsuki sometimes. He deliberately invokes this by taking his time getting to his fights in the Sudden Death Runoffs, to 'help' correct the schedule since she started the event early.
Undying Loyalty: He devotes himself entirely to Satsuki and will follow her to the ends of the Earth. It's in part to this that he's able to shrug off the influence of the Life Fibers sewn onto him by Nui, allowing Satsuki to free him from them completely.
The Worf Effect: Gets subjected to this by Ryuko, who effortlessly one-shots him while in his Scourge Regalia, in a flashback.
Worf Had the Flu: His armor was heavily damaged and running on fumes when he tried to fight Nui. Granted, considering this is Nui Harime, he wouldn't have lasted long either way (something he acknowledges), but it's worth noting that he was working under severe handicaps during their fight.

Nonon Jakuzure

One of Satsuki's close friends and the former scion of Jakuzure Transporting. She originally ran away from her family after they planned to force her into a loveless, controlling marriage. Now, she helps Satsuki in her quest to destroy the Life Fibers through her talents of espionage and information gathering.

Adaptational Wimp: She was never a member of the Elite Four and never gained a Goku uniform in this story. She's instead a Badass Normal who relies on espionage and her Killer Yo-Yo. Even when she starts using Goku uniforms, she lacks the experience she had in the anime and is only able to wield a Two Star uniform.
Anger Born of Worry: Tears into Satsuki regarding Kamui Fukusei and her self-sacrificing actions in the wake of the Naturals Elections that led to her extensive injuries and subsequent capture by Nudist Beach, worried sick that Satsuki doesn't value herself as much as the mission.
Ambiguously Bi: She claims she's straight, but admits that she finds Satsuki attractive.
Arranged Marriage: Nonon was originally forced into a loveless marriage by her father. When her fiancé said that he was planning to force her to give up her band conductor dreams, it proved to be the final straw for her after a long life of acting as her father's business proxy.
Can't Catch Up: She knows she's never going to be able to fight on Satsuki's level, and so makes up for it by being her emotional support.
Childhood Friends: Like canon, she is this to Satsuki. Though unlike canon, they had a falling out but were able to rekindle their friendship in later years.
Combat Pragmatist: She's not as physically capable as her companions, making up for it by exploiting her opponent's mistakes and outnumbering them with Marika.
Deadpan Snarker: Usually has an insult on the tip of her tongue for friends and foes alike. This especially comes up when conversing with Inumuta, where a majority of their dialogue is Snark-to-Snark Combat.
Drowning My Sorrows: After she abandoned her family and went on the run, she started drinking a lot of alchohol to cope with her circumstances. Her first meeting with Satsuki in years was her stumbling into the former Kiryuin as well as Ira while she was thoroughly plastered on sake.
Energy Weapon: Her shoulder-mounted Bass Cannon, which emits a thick pink beam of energy and plays the Hallelujah Choir when fired.
Fragile Speedster: She's pretty nippy but can't take a hit to save her life.
Hair-Contrast Duo: Satsuki is a no-nonsense Lady of War with a black Hime Cut. Jakuzure is a Cute, but Cacophonic girl with bubblegum pink hair.
Hey, You!: How she normally addresses people. She calls Ira "Toad", Inumuta "Mutt", Ryuko "Tyrant", and Mako "Savior Complex", just to name a few.
Huge Guy, Tiny Girl: The tiny girl to Ira's huge guy.
Killer Yo-Yo: Her tool of choice for taking out large crowds and swinging around.
Mistaken for Gay: Mako assumes that she and Satsuki are a couple. They both clarify that this is not the case.
The Nicknamer: As in canon, she rarely refers to anyone but Satsuki by their real name.
No Badass to His Valet: She's pretty quick to lecture Satsuki on her poor sleeping habits and generally wants her to look after herself more, even forcing her to take a nap so that she'll perform at her best. Topping it off, she heavily lambasts Satsuki for creating a false Kamui that almost killed her, as well as her general lack of concern for her own personal well-being.
Riches to Rags: Nonon fled her rich parents in protest of an arranged marriage, and ended up joining Satsuki and Ira in their crusade. She wasn't expecting to be slumming it in makeshift shelters without a yen to her name.
Serrated Blade of Pain: Carries a serrated knife amongst her arsenal and knows how to use it. She even give Houka some pointers on how to use his Tailor's Dagger when they team up to take Maiko during the Battle of Osaka.
Spy Catsuit: Wears an electric pink one, and is the intel hunter and general spy for the Life Fiber Hunters.
Telescoping Staff: Also carries an extending and retracting Bo Staff, complete with a hook on the end to sever Life Fibers with.
Token Mini-Moe: She's one of the youngest looking members of the Life Fiber Hunters.
Undying Loyalty: She owes Satsuki for her freedom from her controlling family and will do anything for her.
Wrench Wench: She's the mechanic of Satsuki's team, having assembled most of her own gear and helps Ira maintain his armor.

Honnouji Academy

Elite Four

In General

Absurdly Powerful Student Council: They have complete control over most aspects of the school and could get away with murder without consequence.
Asskicking Leads to Leadership: One of the requirements for joining the Council is to be crazy strong. Downplayed with Maiko, who cheated to get her position, and even she is powerful enough to defeat most foes.
Bodyguarding a Badass: Their role is to serve as Ryuko's enforcers and bodyguards, but with how ridiculously powerful she is, she really isn't in need of any bodyguards.
Custom Uniform: Unlike One-Star students, their Goku Uniforms are custom-made to fit their personal strengths and abilities thanks to being Three-Star bearers. Uzu is the only character in the story to have a Four-Star Goku Uniform.
Crazy-Prepared: After the first burning of the Honnouji slums, Houka and the rest of the Elite Four (barring Mako) set up protocols to evacuate and save as many of the slums inhabitants as possible in the event that it happens again. This comes in handy during the second burning that Ryuko caused after Mako initially rejected her.
Elite Four: Literally referred to as such. They are the elite bodyguards of Ryuko and the most powerful students in the school outside of her.
Heel–Face Turn: With exception to Maiko, all of them join up with Nudist Beach at some point. Though for Inumuta and Sanageyama, it's a subversion seeing as they were working for Satsuki the whole time, while in Mako's case, it's barely a case of this seeing as she was already a good person to begin with.

Mako Mankanshoku

The Non-Athletic Committee Chair and Ryuko's girlfriend. Kindhearted and brave, she's the founder of the Safe Zone and the head of the No-Stars, seeking to help all students in need.

Adaptational Angst Upgrade: Her status with her family is far colder due to them becoming a Broken Pedestal to her.
Adaptational Badass: Mako in this story is a Three-Star uniform bearer and one of Ryuko's most powerful Elite while the most powerful she ever got in canon was a Two-Star.
Adaptational Nice Guy: She has the same living conditions as when her family hit Fiction 500, but she's still the same Mako as she always was and never went through Acquired Situational Narcissism like her canon self did.
Adaptational Sexuality: Much like Ryuko, it was hard to make heads-or-tails about her preferences in canon, but she's established as a lesbian here.
Adaptational Superpower Change: In canon, she had a Two-Star Goku Uniform that let her throw impromptu weapons and use a baseball bat that doubled as a missile launcher. Here, her Three-Star uniform can manipulate the perception of others as a passive ability and she mainly fights using a combination of Good Old Fisticuffs and Rapid-Fire Fisticuffs.
Adaptation Personality Change: While Mako is mostly the same, she's more serious and less of a Cloudcuckoolander compared to her Plucky Girl canon self. A lot of this stems from her position as The Dragon and Morality Pet to Ryuko alongside her more strained relationship with her family.
All Girls Want Bad Boys: A subverted same-sex example. She genuinely loves Ryuko, but she's shown to dislike her sadistic nature as much as everyone else does. She's actually attracted to the kinder, more loving Ryuko that lies beneath all the angst, brooding, and blood-lust.
All-Loving Heroine: To a rather ridiculous degree. She manages to tone down Ryuko's blood-lust (to a point), establish Safe Zones from the monthly Naturals Election to keep the students' families safe, frequently goes to take care of them, and protects the students and audience members of the Naturals Election from collateral damage. Even with the school falling apart, she still goes above and beyond to save as many students as possible, as seen when she was singlehandedly rescuing and bringing fallen students to the Safe Zone for medical attention. Uzu even states that she's far too nice and loving to be among the more pragmatic Elite Four.
Almighty Janitor: Before she became a Three-Star, she was a No-Star from the slums of Honnouji, which is the lowest possible rank there is. Even then, she proved tough enough to briefly match Ryuko in a fight.
Anti-Villain: Being one of Ryuko's Elite is as far as any villain status she has goes. She's a genuinely loving person who's trying to protect as many people as possible.
Badass Normal: Even before she became a part of the Elite Four back when she was a No-Star, she proved tough enough to briefly match Ryuko in a fight and even kick her hard enough to knock her through several buildings.
Book Dumb: Her intelligence is lowly regarded by the likes of Inumuta and she's not very academically inclined, but she has proven herself to be very effective both as a fighter and as the protector of the Safe Zone.
Brainless Beauty: Downplayed. She's considered very attractive, especially by Ryuko, and her intelligence is lowly regarded, with her teachers usually commenting "at least she's pretty." With that said, she's far from completely dumb, as she's proven herself to be fairly capable at managing the Safe Zone as well as insightful at times.
Broken Pedestal: Her family is this to her. She grew to hate them as they became materialistic and consumed by wealth, to the point of leaving them and moving in with Ryuko. This really became noticeable in her flashback, where her mother essentially pimped her own daughter out to Ryuko just so they wouldn't lose their standing. After this, Mako even thinks of her mother as "the thing wearing her mother's face".
Crocodile Tears: She pretends to cry and weep in sorrow as Satsuki pretends to execute Ryuko so they can all escape Nudist Beach custody. She does such a good job tricking the Nudists into believing she's grieving her girlfriend that Ryuko (who's disguised as one of the Nudists escorting her away) actually forgets that it's all a performance.
Curb-Stomp Battle: She defeats the Tankery Club with a single Ground Punch.
The Dragon: For all intents and purposes, she's this for Ryuko. Her being the only one Ryuko is guaranteed to listen to no matter what grants her the most authority at Honnouji aside from Ryuko herself. She also serves as the final obstacle Satsuki faces before she fights against Ryuko.
Dragon with an Agenda: A benevolent example. Ryuko is the successor to a millennium-old plan to consume humanity and destroy the Earth for the sake of her alien benefactors. Mako just wants her girlfriend to be happy, less angry and for Honnouji to go back to being a (relatively) normal school.
Dumb Muscle: While not a total idiot, she's the least intelligent of the Elite Four and tends to come across as rather ditzy. She more than makes up for it with sheer physical strength, pretty much being the physical powerhouse of Ryuko's elite.
Eating the Eye Candy: Mako ends up doing this when she sees Ryuko for the first time during the first flashback in Chapter 12. She's also openly complimentary regarding Satsuki's attractiveness when she sees her in Senketsu's Kamui form and spends some time ogling Ryuko's exposed abs when the latter synchronizes with Junketsu, who takes on a more revealing form.
Failed a Spot Check: She admits she might have approved the Tankery Clubs formation by accident while doing paperwork.
Ground Punch: Slams the ground to churn up earth when defending the Safe Zone.
Hot Consort: To Ryuko's queen of Honnouji. She's considered very attractive and is Ryuko's girlfriend, alongside serving as The Dragon to her.
Hypocrite: Something that Satsuki calls her out on. She may be a genuinely kind person who openly desires and tries to protect the well-being of others, but her ideals and goals are completely at odds with the fact that she's working for a bloody tyrant and is complacent with her girlfriend's horrific acts.
I Can Change My Beloved: She's thoroughly convinced that she can help Ryuko become a better person and change her from her sadistic ways. To her credit, Ryuko does make an effort to be nice to others when she's around and the death toll of the Naturals Election went down by half when the Safe Zone was established, and even Satsuki admits that she helps bring out what little humanity her sister has left.
Inexplicably Awesome: If there is any form of an explanation for how Mako, as a No-Star student with zero combat experience, can push herself to kick Ryuko, who's perhaps the second or third (jury's still out on who's more powerful between her or Nui) most powerful being on the planet, through multiple buildings and so fast that neither Ryuko or Junketsu could see her move...well, the closest we get is Mako exclaiming that she "[fought] with love". Ryuko notes that it's probably best not to inform Mako that she shouldn't be able to do things like this, on the off-chance that she becomes aware of it herself and ceases being awesome.
I Take Offense to That Last One: Nui has a slew of insults for her in Chapter 26, but Mako only protests when her weight is mentioned.
Mako: Hey, I'm not fat, I'm just big-boobed!
Let's Get Dangerous!: Even with a maniacal Ryuko Kiryuin standing outside her house, she steps up to fight her, because her family's lives on the line.
Lipstick Lesbian: She likes girls and is very upbeat and feminine, heavily contrasting her girlfriend's grouchy, cynical demeanor.
Minion with an F in Evil: Her largest crime is to serve as Ryuko's right hand. She spends most of her free time helping the less fortunate of Honnouji.
Morality Pet: She's Ryuko's primary one, as the tyrant of Honnouji genuinely loves her and is completely kind to her. She tones down her sadistic nature around her and won't kill anyone if she's around. She even allowed her to establish the Safe Zone, despite it flying in the face of her Social Darwinist mindset.
Nice Girl: Hands-down the nicest, friendliest member of the cast. Uzu even remarks that she's too nice to be among the Elite Four, given how they are.
Never a Self-Made Woman: Is frequently accused of this by Honnouji's Club Presidents and Maiko, owing to her close proximity to Ryuko and their thinly veiled attempts at hiding their relationship.
Noble Top Enforcer: Despite being a regular girl way out of her depth, she continues to hold her place at Honnouji both to try and transform it back into a regular school and to help Ryuko reconnect with her humanity. She knows that Ryuko's no saint, and wants Ryuko to get to the point where she might turn herself around as well. Unlike everyone else at Honnouji, she only fights in self-defense, or in defense of others.
No-Sell: The Tankery Club's shells don't hurt her at all.
"Not So Different" Remark:
- From Ryuko as they are both noted to not have much in the way of book smarts and are powerful fighters.
- Also from Nui, with Satsuki noting that both of them have the power to confound others around them with their strangeness and lack of respect for what reality should say about a situation.
Parental Neglect: After she became a Three-Star and her family hit it big, they were rarely ever around. The few times they were however, it was rather unpleasant for Mako.
Perky Female Minion: She serves as the comic relief for the Elite Four and Ryuko in general, and provides a very upbeat counterpart to Ryuko's grumpiness.
Positive Friend Influence: She invoked this and desires to help Ryuko move past her sadistic nature by being the best friend she can be. It also seems to be paying off, as Ryuko legitimately loves her and tones her negative qualities down just for her.
Rags to Riches: She went from living in the slums of Honnouji to standing at Ryuko's right hand. She uses most of her allowances to fund the Safe Zone.
Super-Speed: Even without her Goku Uniform, she's proven to be ridiculously fast. During her fight with Ryuko, she kicked her fast enough that neither Ryuko nor Junketsu could see her move and she's shown to be fast enough to dodge all of Nui's rapier swings while simultaneously carrying an unconscious Ryuko in Chapter 21.
Technical Pacifist: She's perfectly willing to stand and fight to protect others. But she hates the idea of killing anyone. In all the time she's protected the Safe Zone, she's never killed a single person who attacks it. She's so much this that she was even able to convince Ryuko to stop killing, at least whenever she's around that is.
Thou Shalt Not Kill: Mako is heavily against the idea of killing and refuses to do any more damage than what is necessary. In all the time she's defended the Safe Zone, she's never killed a single person who attacked it.
Token Good Teammate: Of Ryuko's council and Elite Four, she's a loving Nice Gal who just wants to support her girlfriend and tries to mitigate the bloodshed.
Trademark Favorite Food: Is a big fan of cheese and is considered weird by her own family for her ability to consume blocks of it.
Undying Loyalty: She's absolutely devoted to Ryuko. When Satsuki tries to appeal to her and get her to switch to her side, she point blank refuses.
Universally Beloved Leader: She's adored by the No-Stars and people of the Safe Zone to the point where they practically worship her as a saint. Such is the fervor of their love for her that, when she was on the verge of losing to Satsuki in the Sudden Death Runoffs, they convinced the entire student body into cheering for her to get back up and win.
Unskilled, but Strong: She's pretty good at pummeling opponents, and that's about it. Her uniform does come with a perception altering ability, but it's more of an automatic buff than a power she actively uses.
Unstoppable Rage: The Platinum Regalia's transformed state isn't really controlled by Mako so much as she lets it run wild. Woe betide whoever is fighting her at the time.
Victoria's Secret Compartment: Can pull bento boxes out of her chest, much to Satsuki's resigned confusion.
White Sheep: She's the only member of her family that wasn't consumed by their new wealth and lifestyle and spends her time actively trying to protect people from the Wretched Hive that is Honnouji, as well as working to make it a proper school again.
Wide-Eyed Idealist: She comes across as this to the likes of Houka and Nonon. While she's under no illusions that she's working for a tyrant with the blood of countless people on her hands, her insistence that she can help Ryuko become a better person baffles the more cynical and worldly of the cast, who deride her as painfully naïve.
You're Not My Father: She's cut ties with her family due to their Acquired Situational Narcissism and their willingness to pimp her out to Ryuko to keep up their lavish lifestyles.

Uzu Sanageyama

The Athletic Committee Chair of the student council. He is Ryuko's most frequent sparring partner and the first wielder of a Four-Star Goku Uniform.

Adaptational Badass: Rather than his Three-Star Goku uniform, he instead has a Four-Star Goku Uniform. Additionally, he's mastered Shingantsu before the start of the story and has reportedly defeated Ryuko at least once in a sparring match, which is more than what others can attest to. And while in canon, Nui easily defeated him with one hit, when Uzu shows his true colors and turns his sword on her in Chapter 20, he's not only able to keep her at bay, but see through her attacks and wounds her for the first time in the story.
Always Someone Better: Suffers this in regards to Ryuko and Satsuki. It really gets to him that the latter can fight him on even footing even after his years of training and fighting with the former as well as the fact that he has a Four-Star Goku Uniform.
Badass Longcoat: He wears one as part of his untransformed uniform.
Benevolent Boss: He's shown to engage in civil and friendly conversation with athletic club presidents under him and treats them well in Chapter 7.
Blood Knight: He shares the same love of combat Ryuko has, being willing to get up and fight her even after five brutal losses in a single day.
The Brute: While his Four-Star Uniform should in theory make him The Dragon to Ryuko by rank in Nui's absence, he doesn't quite have as much influence as Mako, instead serving as the muscle of the Elite Four. He also leads the sports clubs, the bulk of Honnouji's forces.
Declaration of Protection: Offers to step in between Mako and Ryuko if the former ever feels like she's being forced to continue their relationship by the latter.
Determinator: Even after losing his Four-Star Uniform, he demands a Single-Stroke Battle against Satsuki, just so he can land one more hit on her. He also battles Ryuko on the regular, and keeps getting back up for more. Then there's his fight with Nui, where he doesn't back down despite having no hope of winning.
Dual Wield: Is just as happy with a katana in one hand as he is two. Defaults to this during his Unstoppable Rage moment.
Dumb Muscle: He's The Brute for Ryuko and his intelligence is derided by Maiko. However, he completely subverts this in reality. He's actually fairly intelligent and knew that Nui's upgrades to his Goku Uniform would allow her to control him, so he got her tampering removed in advance before the Honnouji attack on Osaka. He also frequently shows himself to be quite strategic in combat, such as figuring out how to permanently remove Nui's limbs from watching Satsuki's fight with Ryuko.
Easily Forgiven: Granted, getting her Mind Stitching removed also played a role in it, but Ryuko has no trouble forgiving him after he's revealed to have been working for Satsuki the entire time, mostly because he went toe-to-toe with Nui for a good while.
Handicapped Badass: His fight with Nui leaves him without the use of his right arm for the rest of the story. He keeps on fighting regardless, in part because his uniform comes with more.
It's All My Fault: Blames himself in part for Ryuko becoming the Tyrant of Honnouji. Satsuki scouted him for Honnouji not only for his fighting abilities, but so that Ryuko might be able to make a friendship outside of the family due to their similar personalities. However, upon witnessing Ryuko's strength, he became more concerned with defeating her as a rival instead of forming such a bond, which he believes helped feed into her worse impulses and ended up being part of why she turned out the way she did.
Lightning Bruiser: Fast and strong, to the point where outside viewers have difficulty keeping up with his attacks.
Master Swordsman: His main specialty. However, he tells Nui that his War God Regalia's various weapons have weakened his swordsmanship skills over time, and he requests that all his weapons be replaced with swords to fully become this trope again.
Morality Pet: While it is downplayed, he is someone Ryuko acts nice towards most of the time due to being sparring partners and having a shared Blood Knight attitude. She even helps carry him to his seat after their previous bout left him too injured to move properly.
Mr. Fanservice: Considered this In-Universe. He's a handsome guy, especially to the nursing staff at Honnouji, who tend to paw all over him with less than total professionalism.
Multi-Armed and Dangerous: His War God Regalia comes with six arms. One with a spear, one with a shield, one with an axe, one with a bastard sword and two to hold his massive katana. After Nui upgrades his uniform, these weapons are replaced by six elaborate swords.
Nice Guy: While not completely, he's among the most affable and polite of the Elite Four, especially compared to Inumuta and Maiko. He treats those under him well and gets along greatly with Mako. Not to mention that, alongside Mako, he's one of the few people who want to save Ryuko from what she's become.
Rain of Arrows: One of the War God Regalia's tricks.
Sensory Overload: While Shingantsu allows him to see the entirety of the planet, combing over the whole of creation is a wee bit tricky, and it takes him a second to pick out the finer details.
Shipper on Deck: While apprehensive of it at first due to being unsure if Mako was feeling forced into the relationship, he quickly warms up to the idea of Ryuko and Mako getting together, even encouraging Mako to pursue her desires because her efforts to help Ryuko become a better person were more successful than what anyone else could do.
Storm of Blades: Fired out as a last barrage by the War God Regalia, both as an attack and to create a Field of Blades for him and Satsuki to continue their duel in.
Throwing Your Sword Always Works: Uzu's just as likely to throw a sword at an opponent as use it the proper way.
Unstoppable Rage: After suffering significant damage and dealing barely anything in return during his duel with Satsuki, Uzu tears his armor away and gives into pure Life Fiber powered rage, significantly increasing his speed and strength in exchange for his swordsmanship. It's enough of a boost to seriously put Satsuki on the back foot.
War God: His Four-Star uniform is called the War God Regalia, complete with multiple weapons and armor depicting every war in human history.
Weak, but Skilled: Compared to Ryuko and Nui at least, since he's Strong and Skilled compared to most else. He may not have the same level of power as the two Life Fiber hybrids, but he more than makes up for it with masterful swordsmanship and combat experience. It's because his skills are so refined that he's able to keep pace with Nui and even put her on the backfoot in their battle.

Maiko Ogure

The Disciplinary Committee Chair following Ira. She gained the position after killing the winner of the Naturals Election for the title. Conniving and power hungry, she seeks to usurp Ryuko and become the new ruler of Honnouji Academy.

Abhorrent Admirer: She's attracted to Houka's intelligence and cool demeanor, made more stark by the more physically inclined hot-heads that they are surrounded with. He wants nothing to do with her due to her naked power-lust and lack of morals in general, especially since she sees him more as a prize than a person.
Adaptational Badass: Maiko here is a Three-Star uniform bearer and a member of Ryuko's council. In canon, she was at most a Badass Normal who was a Monster of the Week villain.
Ain't Too Proud to Beg: She kowtows to Nui like a champ to smooth over her failings during the Naturals Elections.
Ambition Is Evil: Her primary motivation throughout the story is to acquire power for herself, and she constantly seeks to usurp Ryuko and claim the throne of Honnouji Academy. Even after she teams up with Nudist Beach and the Life Fiber Hunters, she makes it clear that she expects Honnouji as payment for helping them.
Anti-Hero: Nominal Hero to Hero in Name Only. She's officially joined Nudist Beach in the fight against REVOCS, but only because the alternative is the death of mankind with nothing left for her to rule over, and she still wants to rule Honnouji and expects it as payment for helping them out. She's on the right side, but her motivations are still 100% selfish.
Ascended Extra: Canonically, she was only relevant for one episode and made a brief cameo appearance in Episode 23 after that. Here, she's one of Ryuko's Elite Four and is more active as an antagonist.
Authority in Name Only: Nui lets her keep her title as President of Honnouji Academy, but it's clear that she has no real power and only has as much control as Nui lets her have. She even complains about it.
Maiko: This is bullshit. I'm supposed to be the President, yet I'm just dangling behind her as she sweeps about the place doing whatever she wants.
Ax-Crazy: While she may hide it well, she's pretty unhinged considering her disturbing fantasies of beating Mako to death with a pipe and the twisted pleasure she took in watching Ryuko subject Mako to Corporal Punishment.
Big Bad Wannabe: She certainly wants to rule Honnouji Academy and usurp Ryuko, but she's a Dirty Coward and Smug Snake who doesn't have anywhere near the power to back her up. Even the brief time when she took control of the Academy was only possible because Ryuko was captured and Nui (the true Vice President) was busy dealing with Nudist Beach. As soon as Nui's finished, the Grand Couturier wastes no time putting Maiko in her place.
Bring My Brown Pants: After seeing Ira catch her meteor construct and throw it at Ryuko, she promptly faints and pisses herself.
Butt-Monkey: Of the Elite Four, she's subject to the most humiliation and insults. Though given how much of a self-centered ass she is, it isn't undeserved.
Cast from Hit Points: Her uniform drains in power the bigger the trap or attack she uses. Performing the Colony Drop should have only been possible with a Five-Star Uniform, but she's able to do it at the cost of being unable to fight after summoning it.
The Chosen Wannabe: She believes it's her destiny to rule Honnoji, but reality has other plans.
Chronic Backstabbing Disorder: Maiko has no loyalties to anyone but herself, and will throw anyone under the bus to improve her position. Not only does she use Nudist Beach to get Ryuko out of the picture, she then turns over the locations of Nudist hideouts within Honnouji to Nui in order to curry favour with her.
Dirty Coward: Maiko never fights fair and never fights her own battles. She got Gamagoori's position by killing the true winner at the last minute after spending the entire Naturals Election hiding. She also refuses to fight anyone she's afraid of, like when she sent her men after Gamagoori despite her being a Three-Star and him not even having a Goku uniform at that point. She even spends the entire Naturals Election in the story hiding out in her manor watching everything unfold. Even after Ryuko is captured by Nudist Beach, she waits until Nui isn't around to call her out on her actions before throwing a one-woman coup of Honnouji.
Double Agent: Works both with Nudist Beach and Honnouji and pits them against each other for her own gains.
Entitled Bastard: She strongly believes that it is her right to rule Honnouji Academy.
Even Evil Has Loved Ones: For all her self-serving ways, she's very concerned about her parent's welfare, sending them vast amounts of money so that they can live comfortably and lying to them about her actual involvement at Honnouji.
Even Evil Has Standards: She's a self-serving bitch who's more than willing to sell anyone out to get more power for herself, but even she's disturbed when she learns that the endgame of the Kiryuins is to let the Life Fibers devour mankind. Granted, it's because no Earth means she's dead and with nothing left to rule over, so it's more a case of Pragmatic Villainy, but it still counts.
Evil Versus Oblivion: She's firmly on the side of evil in this equation, joining the anti-REVOCS movements the second she learns about the Life Fiber's plans to destroy the Earth. Although she does demand payment in the form of Honnouji for her services.
Hate Sink: Similar to Ragyo, she lacks any redeeming qualities with the exception of not wanting the Earth to be destroyed, and even then, it's only for selfish reasons. Her appearances in early chapters have her as despicable to the point where despite Ryuko being The Caligula, she comes across as the more sympathetic party due to having more redeeming qualities than Maiko.
Hypocrite: She berates Mako for getting in the Elite Four due to dating Ryuko, but she got in through cheating.
Locked Out of the Loop: Because she's a power hungry snake, Sanageyama and Inumuta kept her completely out of the loop regarding the truth about Honnouji's original purpose. She didn't even know about Life Fibers until Chapter 19, where Uzu lets her in on the truth.
Makeup Is Evil: Her transformed state makes up her face with pale foundation and purple lipstick and eyeliner. She's the only member of the cast to have make-up mentioned in any form.
Opportunistic Bastard: After spending years living in Ryuko's shadow unable to overthrow her physically or otherwise, she wastes no time in seizing the throne of Honnouji after Ryuko is captured by Nudist Beach.
Pimped-Out Cape: Accessorizes her uniform with a purple ermine cape to give off the impression of royalty.
Politically Incorrect Villain: Refers to Mako and Uzu as 'retards' without a second thought.
Purple Is Powerful: Invokes this with a purple cape attached to her uniform. It's carried over to the transformed state as well.
Scary Shiny Glasses: Her introduction when hunting down the Uniform Thief has her push up her glasses, creating this effect.
Self-Made Woman: Considers herself as such, having gone from being a No-Star to Ryuko's council thanks to her scoundrelism.
Slut-Shaming: She's of the belief that Mako is only on the council due to Ryuko's attraction for her, and internally accuses her of this, for 'crimes' as small as wearing pink frilly underwear when she's forced to strip for her Corporal Punishment.
The Sociopath: She's self-serving to the core, manipulative, willing to sell out anyone just for the sake of power, prideful in her position, and hides her less stable aspects behind a veneer of class and professionalism, with it not taking much to shatter those illusions.
Smug Snake: She may certainly talk a big game and acts high-and-mighty, but beneath it all, she's just a Dirty Coward who's far outclassed in both raw might and pure cunning by the true villains and is very quickly reminded of her station in the grand scheme of things.
Squishy Wizard: It takes effort to catch her but once you're in punching range, she's got very little in the way of defense.
The Starscream: Actively seeks Ryuko's position as queen of Honnouji. Ryuko knows and finds the idea laughable.
Token Evil Teammate: Of the Elite Four, she's the only member that's outright despicable. Inumuta and Sanageyama both secretly assist Satsuki in trying to take Honnouji back and are trying to save mankind from the Life Fibers, while Mako is an absolute sweetheart who's just trying her best to limit Ryuko's sadism and support her as best as possible. Maiko, meanwhile, is a self-serving coward who only cares about herself and seeks to take over Honnouji because she believes herself to be entitled to power.
Trap Master: Her whole gimmick, both with 'standard' traps such as bear traps and pressure plates, and the more fantastical traps that her uniform allows her.
Yank the Dog's Chain: Just as it looks like she'll be able to run Honnouji without interference, Rei Hououmaru shows up.

Houka Inumuta

The Information and Strategy Chair. Quiet and calculating, he wants little to do with Ryuko's kingdom but finds himself supporting it nonetheless.

The Cracker: He uses his hacking prowess in combat as well as in his general council role. He hacks into Ira's armor during their fight and controls him for a spell.
Deadpan Snarker: He's never without an acidic comment for whoever he's talking to, although he tends to repress himself around Ryuko, which is the smart choice, as getting snippy with the superhuman One-Woman Army running the place is a one-way ticket to a near-death beating at best.
Everyone Has Standards: Tells the Biology Club to get out of Honnouji in disgust after he learns about their experiments.
Genre Savvy: Refuses to elaborate on his tricks and plans, since that's a sure-fire way to have them disrupted. He even points out how manga villains typically fall victim to this form of Bond Villain Stupidity and that he's not planning on following in their footsteps.
Good Is Not Nice: Willing to make sacrifices for the greater good, and is generally snippy and sour.
Invisibility Cloak: The Spymaster Regalia allows him to perform the Probe's Regalia's invisibility trick while he's outside the pod.
Know When to Fold Them: Gives up his fight against Ira due to having no weapons left that could scratch Ira's armor.
Only Sane Man: Considers himself this. Given the state of Honnouji, it's hard to blame him.
Pet the Dog: When Mako is at her lowest point during the second burning of Honnouji's slums, he points out that Ryuko was just as likely to do it if she'd slept with her as if not. He then offers to evacuate her and her family away from Honnouji's madness since she's out of her league emotionally and mentally, and lets her in on The Masquerade of the Life Fibers.
The Smart Guy: Like canon, he is the brains of the Student Council.
Surrounded by Idiots: Has a very low opinion of the Honnouji student body, his fellow council members, Ryuko, and even the Life Fiber Hunters. The only person he gets along with and treats pleasantly is Shiro Iori.

Student Club Presidents

In General

Custom Uniform: Like the Elite Four, their Goku Uniforms are made to stand out among their club members. Most notably, their star crests and weapons glow a luminescent red.
Elite Mook: They're certainly more competent than your average club goer or academy student, but that amounts to them having actual names and doing moderately better against the Life Fiber Hunters than the norm. Otherwise, they're taken down just as easily.
Improbable Weapon User: Razor pillows, poetry cards, ping-pong balls, origami cranes, etc. Some of these guys have some really weird arsenals.
Original Character: A fair amount of them, like Beros and Shusei, are original to the fic.
Quirky Miniboss Squad: With the exception of Iori, they all answer to the real bosses of the school.
Spikes of Villainy: Like the Elite Four, a good many of the club presidents' uniforms have these features

Beros Goyle

The leader of the Shooting Club.

BFG: She has a large gun in place of her right arm.
Curb-Stomp Battle: On the receiving end. She and her club are quickly defeated by Gamagoori.
Gun Nut: Like her status as president of the Shooting Club would suggest, she loves guns.
Gyaru Girl: Goes about in ganguro style, complete with hot pants.
In Love with Your Carnage: Openly drools upon seeing Ira tearing through her club, immediately asking where he acquired his gear.
No-Sell: Her rapid fire assault on Gamagoori had no effect at all.
Oh, Crap!: Her and her clubs reaction when they failed to hurt Gamagoori.

Ryosuke Todoroki

The leader of the Automotive Airsoft club. He fused his Goku-uniform into his car.

Adaptation Expansion: A minor example. In canon, he and his club are instantly defeated by Ira's Shackle Regalia. Here he receives a little characterization, gets some dialogue, an extra transformation, and lasts a little longer against Ira and Aikuro's combined strength.
Curb-Stomp Battle: On the receiving end. He and his club are quickly defeated by Gamagoori.
Drives Like Crazy: Ryosuke Todoroki of the Automotive Airsoft Club, whose Goku Uniform is also his car.
Flaming Hair: Todoroki's hair is a glowing red flame, or at least resembles one.
Meaningful Name: Each character in Todoroki's name contains the radical for "car".

Shusei Kogami

The leader of the Secret Police Club. He works under Maiko to collect info on Honno City for the Council, spying on the Safe Zone in particular. He is a Two-Star user.

Badass Longcoat: His uniform grants him one.
The Dragon: He serves under Maiko.
Highly-Visible Ninja: Nonon notes he makes a lot of noise for someone who should be very stealthy.
Secret Police: He runs a club of these on Maiko's behalf.

Tomoni Gizona

The leader of the Espionage Society club.

Highly-Visible Ninja: Nonon notes he makes a lot of noise for someone who should be very stealthy.

Momonga Masumoto

The leader of the Historical Reenactment Club.

Anachronism Stew: His uniform is a mess of different historical looks, combining, amongst other things; British Grenadiers, cowboys and samurai aesthetics.
Fashion-Victim Villain: In-Universe example. He attempts to combine uniforms from other eras to look cool. It doesn't go well.

Nishizumi Kojima

The leader of the Tankery Club.

Curb-Stomp Battle: Mako defeats her with a single Ground Punch.
Eyepatch of Power: Her uniform grants her one.
Noblewoman's Laugh: Laughs in this style. Even Mako finds it annoying.
Tank Goodness: She leads the Tankery Club and controls a tank with Life Fibers.

Rei Itsumi

The president of the Aeronautics Club.

Death from Above: He attempted to bomb the Safe Zone before Ryuko stopped him.

Shiro Iori

The president of the Sewing Club. A childhood friend of Satsuki, Ryuko and Nui, he's responsible for the maintenance and performance of Honnouji Academy's Goku Uniforms.

Combat Tentacles: His Three-Star Tailor's Regalia equips him with four of these when transformed.
Gadgeteer Genius: He is the one who designs and constructs the Goku Uniforms. Might share this position with Inumuta, who specializes in gathering and analysis of battle data which are later used to improve the uniforms.
Gas Mask, Longcoat: His overall look, with his uniform length extending far beyond his height. The mask itself becomes exaggerated upon activating his Goku Uniform.
Non-Action Guy: By his own assessment, he's this, with his uniform being designed for creative purposes, not combat ones. He can still put up a fight when needed though.
Not So Stoic: He's generally pretty calm, but watching Satsuki and Ryuko do battle shreds his nerves, and watching the aftermath of Satsuki donning Senketsu leaves him completely frazzled with worry.
Only Friend: He is the only person Inumuta treats with respect, due to both of them being geniuses.
The Stoic: Tends to wear a very flat, neutral expression and tone most of the time, despite the madness of Honnouji.
Undying Loyalty: Contrasting Houka, he still wholly believes in Satsuki despite her absence and wants to help her no matter what.

Nudist Beach

In General

Adaptational Badass: They're treated with far more seriousness in weight as a force in the Life Fiber war, even capturing Ryuko from right under Nui's nose with help from Satsuki and two of the Elite Four. Their undercover operatives are mentioned to be able to fight students in the Naturals Elections no problem, only getting curb-stomped when Nui takes to the field.
Enemy Mine: Nudist Beach may not like Satsuki or Honnouji's Student Council (and vice versa), but they're willing to work together against Nui.
Hero Antagonist: With exception to Aikuro and Isshin/Soichiro, they also oppose Satsuki and her Life Fiber Hunters as well as REVOCS.
Irony: Many of them loath Kiryuins to the point of subjecting them to the Sins of the Father trope, but their leader, Isshin Matoi, is Soichiro Kiryuin.
Well-Intentioned Extremist: They have the noble aim of destroying the Life Fibers that will consume mankind as well as put an end to Ragyo Kiryuin. But at least half of them have a serious case of Sins of the Father and are just as vindictive of Satsuki and her Life Fiber hunters simply because of her bloodline.

The Leader (Spoilers)

Isshin Matoi/Soichiro Kiryuin

The founder of Nudist Beach and the father of Ryuko, Satsuki, and Nui. He faked his death to fully commit himself to destroying the Life Fibers and putting an end to Ragyo's machinations.

Adults Are Useless: Subverted hard. The second Satsuki enters the Nudist Base, he does everything in his power to take care of her and protect her from the more extremist members of the group.
The Atoner: Everything he does is driven by his feelings of regret for working with Ragyo and abandoning his children to her clutches.
Big Good: Is this for the setting, as he is the founder of Nudist Beach.
Broken Ace: He's the leader and founder of Nudist Beach, the most powerful and successful resistance movement against REVOCS there is, and he's personally developed all sorts of ways to kill Life Fibers for good as well as created Kamuis like Junketsu and Senketsu. Not that any of this particularly matters to him, as he's been forced to abandon his children just to ensure his organization's survival and is utterly plagued by feelings of self-loathing over it and what it led to his daughters becoming.
Broken Pedestal: The knowledge that he was still creating Kamuis even after what happened to Kinue seems to have shaken Tsumugu's faith in him.
The Chains of Commanding: He's trying to keep Nudist Beach from becoming a full Anti-Fiber extremist movement, keep Nudist Beach from being discovered by REVOCS, keep his men from killing Satsuki for the crime of being born a Kiryuin, keep the Nudist Council from undermining his orders, help Satsuki in whatever way he can while not pissing off any of the above, and looking for a way to save Ryuko. Needless to say, he's got a lot on his plate.
Daddy Had a Good Reason for Abandoning You: Stayed with the family as long he could, right up until Ragyo was about to confront and kill him over his double life with Nudist Beach.
Drives Like Crazy: Even before the gang is attacked by the Shadow Student Council, his driving style involves powersliding his R.V. through three lanes of traffic, narrowly dodging cars.
Drowning My Sorrows: Drinks heavily in depression after learning the true extent of Ragyo's abuses towards Satsuki.
Eye Scream: He's missing an eye, and as his revealing himself to Satsuki and co. shows, it's not part of a disguise. He's legitimately missing an eye.
Freudian Slip: He gives a minor slip up when to his true identity when he praises Satsuki for piecing together that Mind Stitching is basically implanted Life Fibers in the brain. Thankfully, she doesn't notice.
Isshin: Exactly! That's my girl!
Satsuki: Don't get so familiar. What do you need me to do?
Giver of Lame Names: As in canon. Shown to be a reflexive action for him, he names Ryuko as such despite Ragyo standing right beside him.
Henpecked Husband: Played for Drama. He knows that he's supposed to play nice and sit in Ragyo's shadow, and so having two 'outbursts' (saving Ryuko's life and naming her without Ragyo's input) immediately fills him with dread at what her response might be.
Horrible Judge of Character: Well, there was a time when he was actually in love with Ragyo Kiryuin, so he must have been this at one point. In his defense, he does bring up that there was once a time when Ragyo would put a lot more effort into hiding her true self.
It's All My Fault: Wasn't terribly happy with having to fake his death and leave the girls in Ragyo's care, an action he regrets to the current day for how things have progressed from there.
The Leader: For Nudist Beach. Even with the schism of ideology tearing the resistance apart, when he asks a Nudist to jump, they ask how high.
Love Makes You Dumb: Admits to Ryuko that he was an idiot in his youth for letting his love for Ragyo blind him from what a horrid monster she truly was.
Made of Iron: Despite the fact that he's an ordinary human, he's survived car explosions and being set on fire on separate occasions, coming out no worse for wear.
Named In The Adaptation: His original surname was unknown, but here, his original surname was Matoi, which he reused as his "Isshin" persona.
Papa Wolf: After spending thirteen years watching his children fall apart, there is nothing he won't do to protect them now that they're within arm's reach, even if that means butting heads with his own organization. He also admits that had he known the sheer depths of Ragyo's abuse, he would have outright ditched Nudist Beach altogether and stormed the Kiryuin estate to save his daughters, consequences be damned.
"There was nothing he could have done for his daughters as Soichiro Kiryuin. But Isshin Matoi will not be cowed into letting the Kiryuin children hang for their mother's crimes."
Parental Abandonment: He left his daughters when they were young to focus on building up Nudist Beach to take down Ragyo and REVOCS for good. Even to this day among a litany of other failures, he considers doing so to be the greatest folly he ever committed.
Parental Favoritism: Admits to himself that, if he had the courage to steal one of his daughters away from Ragyo's clutches it would likely be Satsuki, seeing as she is the only pure human of the three and takes after him most. Ryuko's flashback in Chapter 22 shows this as while she and Nui are seated in their mother's lap for a family picture, Satsuki is seated in his lap.
Parents as People: His entire POV chapter shows that he deeply loves his daughters, but he was at a crossroads where he had to choose between them and prioritizing Nudist Beach, where he chose the latter. He's shown to constantly hate himself for this decision due to being forced to see what became of his children because of it. In spite of his predicament, he still does everything he can to save Ryuko and Satsuki.
Reasonable Authority Figure: Isn't exactly on board with the idea of arresting Satsuki for her supposed crimes, an act pushed on him by Nudist Beach's ruling council, and wants nothing more than for both her group and his to come together for the greater good. He also fights tooth and nail against the idea of simply killing Ryuko, seeking a cure for her Mind Stitching and a potential alliance, which gives the heroes a greater insight into Ragyo's plans. Of course, he's not exactly without a conflict of interests in either regard.
Revolvers Are Just Better: As of Chapter 28, he's shown to be carrying one, with one of the chambers holding an Anti-Life Fiber Bullet.
Science Hero: In addition to the Rending Scissors, he invented the Tailor's Dagger, the Anti-Life Fiber Bullet, the Fiber Burner, the Sewing Machinegun, the DTR and much more. If it can kill a Life Fiber, he's probably built it and handed it out to his men.
Screw This, I'm Outta Here: When the rest of Nudist Beach makes it clear that they're going through with executing Ryuko no matter what anyone else says, Isshin decides to abandon the organization he created and help his daughters escape.
So Proud of You: A rather backhanded example seeing as he's not very happy about it. He was hoping to just torture Junketsu for information on stopping Ragyo as well as saving Ryuko and leaving it at that. Instead, he's shocked to see how human Junketsu has become over the years and how he evolved beyond his expectations.
Isshin: I really wish this conversation would have gone the way I wanted. The way that would let me threaten you with fire and scissors until you detailed every inch of Ragyo's manipulations. Congratulations. You've grown beyond my wildest expectations, and I hate it.
Walking Spoiler: Just the fact that Isshin is still alive in this story makes him a major spoiler character.

Aikuro Mikisugi

Nudist Beach's inside man in Honnouji. He aids Satsuki and her Life Fiber Hunters with information about Ryuko's reign, looking to team up to put an end to it. Good natured if eccentric, he's a master spy and acupuncturist.

Adults Are Useless: Subverted. While he can't directly stand up to Ryuko and Nui (for fairly obvious reasons), he is able to provide support for Satsuki to get out of Honnouji and take care of her wounds, and helps Dr. Matoi protect her from Nudist Beach's extremists.
Friendly Sniper: He's friendly, if eccentric, and takes up ranged duties while Tsumugu and the Naked Nudists engage Nui.
Healing Shiv: Offers Satsuki an acupuncture needle to help her sleep and heal, displaying its prowess by sticking Tsumugu in the forehead with one.
Nice Guy: Especially when compared against the rest of Nudist Beach. He wants the various Anti-REVOCS movements to get along and is generally personable, even when Satsuki is giving him the cold shoulder. He suffers a minor Cynicism Catalyst after Nui runs rampant through the Naked Nudists, but bounces back from it quickly.
Reasonable Authority Figure: He's one of the most reasonable members of Nudist Beach and has no qualms working alongside the Life Fiber Hunters and sharing information with them. He's also one of the only ones to treat them well while they're in Nudist captivity.
Sextra Credit: A platonic version; it's mentioned that he got Honnouji's Metalworking Club to repair the heavily destroyed Naked Shooting Star in exchange for giving out passing grades to the entire club for his history class.
Shameless Fanservice Guy: He has no qualms either being naked or near-naked. His first meeting with the Life Fiber Hunters introduces him in nothing but a speedo and when escaping Honnouji with Satsuki and Tsumugu, he offers Satsuki either his pants or shirt to cover her with, stating that he's not picky about it. When they're at Nudist Beach headquarters, he's just wearing a speedo and an open doctor's coat.

Tsumugu Kinagase

An anti-uniform guerilla and head of the Naked Nudists, who seek to totally eliminate REVOCS at any cost. A ruthless and unfettered warrior, he seeks to avenge the sister he lost to the Life Fibers with little distinction for who might interfere with that goal.

Berserk Button: Anything involving Life Fibers is bound to get a rise out of him. Looking down on humanity and Nudist Beach gets his goat as well.
Cold Sniper: One of the tools in his arsenal. He's also notably far more grim and aggressive with others than Mikisugi.
Combat Pragmatist: Willing to collapse buildings onto an opponent, lead them into traps and strike their weaknesses without mercy.
Cynicism Catalyst: As in canon, the death of his sister set him on a zero-tolerance path regarding Life Fibers.
Determinator: Much issues as he has, he's one determined son of a bitch. He actively guns after Satsuki even when it's clear that he can't beat her and he keeps getting up to fight against Nui Harime despite how futile it is.
Empowered Badass Normal: Otherwise human, but he's had Artificial Life Fibers sown under his skin to increase his toughness and give him light regenerative abilities.
I Owe You My Life: He owes Dr. Matoi a couple of life debts. Not enough to ignore orders regarding Satsuki, but he holds the man in high regards otherwise.
Overshadowed by Awesome: He's not a bad fighter by any stretch of the margin and has proven very effective against nameless mooks, not to mention he's reportedly Nudist Beach's best fighter. It's just that the opponents he often ends up facing (Satsuki, the Elite Four, and Nui) are often far above what he can handle. Most notably among them are his fights against Nui, which are so stacked against him that it's borderline comical.
Rousing Speech: Gives one to his fellow Naked Nudists before they fight Nui Harime a la Alexander Anderson.
Shameless Fanservice Guy: Dresses in black belts and military equipment, and that's it. The Naked Nudists follow a similar dress code.
Well-Intentioned Extremist: Leader of the Naked Nudist faction, a splinter group within Nudist Beach that want a total extermination of the Life Fibers and everything related to them, including Satsuki for her Sins of the Father. Said faction will do anything to stop the Life Fibers, including suicide attacks.
Wolverine Claws: Uses a set in his short fight against Satsuki.

Kaneo Takarada

The money-crazed Student Council President of Naniwa Kinman High School.

Anti-Hero: He's extremely greedy and unsavory, despite his alignment with Nudist Beach, but he's still the main protector of Osaka and is A Father to His Men. He even helps Satsuki and the Life Fiber Hunters in escaping Nudist Beach headquarters without any issues.
Fiction 500: So much so that his family is the only one to have stood against the Kiryuin family for so long in this department, and the Kiryuins pretty much have total control of the planet by that point.
Greed: Like canon, he is super greedy and made his own currency.

The Secret Project (Spoilers)

Senketsu

The Kamui created by Isshin Matoi meant to serve Nudist Beach's aims.

Age Lift: Canonically, he was fully completed by the time the series began. Here, it's stated that he was only recently completed by the events of Chapter 20, making him younger than he was in the anime.
Awesome, but Impractical: When wielded by Satsuki, their inability to connect mentally like Ryuko and Junketsu means that she has to verbally inform him on what forms to take. Because of this, there's a delay whenever he transforms by about a few seconds, meaning that the only way for him to be effective is for Satsuki to plan out what to do in advance.
Chainmail Bikini: As in canon but far more striking, given that Junketsu and the Goku Uniforms tend to cover the entirety of the wearer. Shiro even has to swing a blade at Satsuki's exposed stomach to prove his powers of protection.
Demoted to Extra: He's one of the main characters in canon, having been present since the first episode. Here, he doesn't make any appearances until the events of Honnouji's attack on Osaka in Chapter 20.
Embarrassing but Empowering Outfit: Downplayed. While he's just as Stripperiffic as in canon, Satsuki isn't particularly concerned by it, although she notes that the skirt is very much not her style.
Good Feels Good: He simply helps because it's the right thing to do. When Nui questions why he'd bother helping Satsuki, who treated him as a mindless weapon, he simply responds "Do I need a reason to help someone?"
Half-Human Hybrid: Thanks to having been created with Ryuko's blood, spinal fluid and bone marrow in an effort to separate his mind from the Life Fiber hive mind, he's much the same as her, but in clothing rather than human form. He is neither human nor clothing but both at the same time. Junketsu even finds that his presence is similar to Ryuko's.
Hunter of His Own Kind: Created by Doctor Matoi as a weapon to use against the Life Fibers. More pronounced here, as Satsuki has very little interest in him as an individual, but more for the power he can grant her in achieving her goals.
The Nameless: Starts out as this, just being referred to as "The Nudist Kamui". Satsuki later names him Senketsu, averting this.
Stripperiffic: Much like canon, and justified by Isshin. According to him, the more skin the Life Fibers cover, the more control it grants them over their wearer. By covering so little skin, it removes this flaw.
The Voiceless: Since he's bonded with Satsuki here, he's this seeing as she can't hear his voice even while he's active and being worn by her. Averted in Chapter 23, where Ryuko manages to provide him a voice to speak with Satsuki and even makes a brief connection between the two. Satsuki later starts trying to find ways for them to better communicate.
Walking Spoiler: Early in the story, he seemed to have been Adapted Out, making his presence in the story in Chapter 20 rather shocking.

REVOCS

Ragyo Kiryuin

The CEO of REVOCS and the mother of Satsuki, Ryuko, and Nui. Cold and manipulative, she intends to enslave mankind to the Life Fibers.

Abusive Parents: Physical, verbal, emotional, psychological, sexual. Ragyo leaves no box unticked with how horrid she is to her daughters.
Actually Pretty Funny: Has a moderate chuckle at the idea of calling the day-old daughter she almost killed and threw in the garbage "Ryuko". See Meaningful Name on Ryuko's folder.
Adaptational Villainy: She was already pure evil in the main series, but here she brings it up even further. In the anime, she was actually loyal to the Life Fibers, while here she fully intends to supplant them so she can reign over everything on Earth as a goddess.
Arch-Enemy: To Satsuki. She's responsible for her awful upbringing, the corruption of her sisters, the death of her father (or so she thinks), and is planning to end the world.
Big Bad: The CEO of REVOCS and readying the world to be devoured by the Life Fibers.
Blade Catch: When Ryuko swings Sorority at her, she catches the blade between two fingers and effortlessly disarms her.
Broken Pedestal: After Ryuko is freed from her Mind Stitching, she admits that she doesn't know if she can truly trust her mother ever again. She also becomes this for Nui after the youngest Kiryuin daughter learns of her true intentions regarding the Life Fibers and Earth. Though she's still shown to trust her more than her sisters.
The Corrupter: She actively encourages her daughters' worst attributes and raised them to see the human race as beneath them. This naturally led to them growing up into complete psychopaths with the exception of Satsuki.
Curb-Stomp Battle: As shown in a flashback in Chapter 22, when Ryuko attacks her, the ensuing beatdown is so one-sided and vicious that Ryuko does her best to forget about it completely.
Dark Action Girl: She's both the most sinister and powerful character in the story, so much so that she can easily beat the crap out of Ryuko, who herself was treated as an Invincible Villain for most of the plot.
Depraved Bisexual: She's noted to have taken up multiple lovers of both genders and is the most morally bankrupt character in the entire story. Pretty much every lover she's had was little more than a toy to her, and that's not getting into the horrific things she's done to her own children.
The Dreaded: Let's put this into perspective. Nui Harime, another example of this, is a depraved killing lunatic who effortlessly commits acts of Cold-Blooded Torture with all the nonchalance of opening a door. Ragyo terrifies her.
Evil Matriarch: She's the head of the Kiryuin clan and is utterly awful to her children.
Greater-Scope Villain: Her daughter serves as the main antagonist for much of the story through the Naturals Election, but Ragyo is the main one pulling the strings, as she controls the entire world and is the reason behind a majority of the cast's suffering either directly or indirectly.
Harmful to Minors: She had Ryuko don Junketsu at the age of four. Keep in mind, this was the feral, human-eating, rabid beast version of Junketsu. To top it off, the rest of the family had to stand by and watch. And that's without getting into the many years of physical and sexual abuse she subjected her children to.
Hate Sink: Every time Ragyo is on screen, mentioned by another character, discussed by the narration or given even the slightest hint of spotlight, she is portrayed as nothing less than an utterly reprehensible being responsible for the cast's collective misery and the general sour state of the world. The only people in the entire cast who views her in a favorable light are Ryuko and Nui, and even then the former's perception of her is skewed as a result of Ragyo's mind manipulation while the latter's is usually followed up with a mention of an atrocity or some other act of evil. To put things into perspective, even Junketsu despises her.
Light Is Not Good: Loves the color white, and is a terrible human being, not to mention the main Big Bad.
Parental Favoritism: She plays favorites with her children and greatly favors Ryuko and Nui due to their Life Fiber natures while Satsuki was shunned and scorned. She's also shown to have more favor towards Ryuko over Nui in that Ryuko easily gets away with acting unladylike while Nui actively reminds herself to be a proper lady and makes sure no knowledge of her slip-ups get back to Ragyo. Soichiro even thinks of Ryuko as Ragyo's favored child.
Rank Scales with Asskicking: She's the CEO of REVOCS, an organization that lists Ryuko and Nui as members, and she's stronger than both of them.
Rape Is a Special Kind of Evil: She's raped and molested her own daughters since their youth, and such horrific acts are considered among her worst crimes. When Nonon and Isshin learn about this, well, if they didn't want her dead beyond a shadow of a doubt before, they do now.
Touch Telepathy: As she's had Life Fibers implanted within her, she has the ability to connect to the minds of other Life Fibers via skin contact, which she's shown using to communicate with Ryuko in a flashback so that Satsuki and Nui don't hear them talking.
Vague Age: Her age is left unknown and is even speculated in-universe. She laughs it off as a meaningless number and went out of her way to erase all records of her birth certificate and burn down the hospital she was born in just to make sure her age stays that way.
Villain with Good Publicity: From the outside, she seems nothing more than an affable businesswoman. When Satsuki returns to Japan after her long exile, the first thing she's faced with is REVOCS advertisements and endorsements from Ragyo for the local economy. She's also incredibly quick to turn inconveniences in her favour, such as faming Nui's destructive tantrum against her office as an assassination attempt on her life by anti-REVOCS rebels.
Virgin in a White Dress: Inverted in the most horrid way possible. She's predominantly dressed in white, but she outright molests her own daughters, forcing them to sleep with her and each other.
World's Strongest Woman: Much like her two youngest daughters, she's augmented by the Life Fibers and is far more powerful than either of them. In the flashback of Chapter 22, Ryuko attacks her while fully synchronized with Junketsu, and Ragyo just bats her aside like it's nothing.

Nui Harime

The third child of the Kiryuin family and the Grand Couturier of REVOCS. Much of her time is spent "collecting" rival companies of REVOCS to further the Conglomerate's interests, but she finds herself called to Honnouji Academy to help Ryuko deal with their meddlesome eldest sister.

Abled in the Adaptation: This version was never stabbed in the left eye with a Scissor Blade, so she still has both eyes here.
Adaptational Angst Upgrade: Ragyo's abuse has a much more profound and visible affect on her here than it did in the series.
Adaptational Nice Guy: She's still a complete psychopath, but she's given more affability and redeeming qualities than she had in the anime, such as her genuine love for her sister and cherishing Soroi against her mother's desires.
An Arm and a Leg: Sanageyama manages to slice off her left arm in their fight in much the same manner as Satsuki cut off Junketsu's eye. Unlike with Junketsu, she is able to regenerate her arm, but it's three inches shorter, leaving her absolutely livid. She gets those three inches back later when Ryuko gives her some extra Life Fibers to patch up.
Annoying Younger Sibling: A very dark example. She's the youngest of the Kiryuin sisters and is a complete Psychopathic Womanchild to the point where Ryuko comes across as more stable by comparison. Best exemplified by the time she tried to forcibly sew Life Fibers into Satsuki, with Ryuko stopping her.
Artificial Family Member: Much like canon, she was created using an artificial Life Fiber womb. However, it's more pronounced here since she's an official member of the family due to having been adopted into the Kiryuin clan and raised alongside Ryuko and Satsuki as their younger sister.
Artificial Human: Was somehow created by Ragyo using the Primordial Life Fiber as an artificial womb. While her oddities and quirks often freak out regular people, Satsuki and Ryuko are shown to have been fully comfortable with her strangeness growing up, accepting her as if she were their full-blooded sister.
Autocannibalism: In order to destroy the dead Life Fibers wounded by Uzu's attack, she eats the stump of her own dismembered left arm, so that the healthy fibers in the rest of the arm can regenerate as normal when she reattaches it.
Ax-Crazy: You know you're this trope when you can make Ryuko Kiryuin look sane by comparison. It especially becomes notable after Ryuko grows more sane, with her being heavily offput by Nui's instability.
Berserk Button: Actually managing to hurt her in a meaningful way will infuriate her like nothing else. When Sanageyama managed to slice off her left arm in a way that it couldn't regenerate from, she dropped her carefree demeanor and went absolutely ballistic.
Birds of a Feather: This trope is a part of her attraction to her sister. Nui even outright says that Ryuko is the only person in the world who's anything like her, as both of them are Life Fiber hybrids.
Bitch in Sheep's Clothing: Cute as a button, but loves throwing out back-handed compliments and outright insults in casual conversation. And that's before she gets around to killing people.
Blessed with Suck: Her unique status as an artificial life-form born from a Life-Fiber womb makes her one of the most powerful beings in the world and an unstoppable killing machine. However, due to being mostly made up of Life Fibers, she cannot wear Goku Uniforms or Kamui without absorbing them into herself. One of Soichiro's flashbacks showed her to be very upset at not being able to wear the same clothes as her sisters.
Blood Knight: Subverted. Contrasting her older sister, who better fits this trope to a T, Nui isn't shown to enjoy fighting, but rather, killing. She actually expresses great frustration when her opponents simply refuse to die, as seen when she got pissed that Tsumugu just wouldn't stay down.
Boobs-and-Butt Pose: She attempts one of these while disguised as Satsuki to rile up Ira, trying to jut out breast, hip and butt all at once.
Broken Ace: She's the Grand Couturier of REVOCS, one of the deadliest people on the planet, and is so efficient at her job that she can easily amplify Goku Uniform production in ways that not even Satsuki, Ryuko, or those that work for them can. Unfortunately, she's also a psychotic mass murderer conditioned to see humanity as beneath her and is also heavily motivated by maintaining her mother's "love" for her, to the point where she desperately forces herself not to undo Ragyo's Mind Rape of Ryuko after it happens.
Broken Tears: Sheds these when Ryuko becomes Mind Stitched into an Empty Shell, promising that she'll find her someday.
The Bully: She really enjoys hurting others and watching them wallow in their pain and misery. Sanageyama even insults her by pointing out how she's little more than bully with a sharp piece of metal to use for a knife.
Calling Parents by Their Name: She refers to Soichiro, her adoptive father, by his first name when talking about him.
Children Forced to Kill: In flashbacks, it's shown that Ragyo made her start killing at an early age, ranging from bugs, to animals, and finally to people.
Clingy Jealous Girl: She's this towards Ryuko. As seen when she was on her way to Honnouji Academy, she really wants to kill Mako just for her being close to Ryuko. When she's made aware of their relationship, she becomes absolutely livid. In Chapter 27, her return to Ragyo sees her using the stolen Scissor Blades to completely demolish her mother's office in a fit of jealous rage at Mako for winning her sister's heart.
Combat Sadomasochist: She clearly loves killing people in horrific ways, and Ira shocking her with his gauntlet shows that she gets outright turned on by her own pain as well.
Nui: Oh daddy, shock me harder. I've been a bad girl.
Creepy Child: Even as a kid, Nui was pretty disturbing. She created Voodoo dolls of people who made fun of or picked on her sisters, complete with the actual hair of those people with fresh blood still on them. She's also mentioned to have skipped breastfeeding from the Kiryuin's nanny in favor of taking a bite of out the breast instead.
Cold-Blooded Torture: Her role as the Grand Couturier involves going to rival clothing businesses and "convincing" them to sell up to REVOCS. She's introduced to the story in the middle of one of these acquisitions, and later inflicts similar punishment to Ira after he's captured by her. She's also shown to have horrific fantasies of torturing Mako over and over again.
Cool Sword: Fleur de Mort, a crystalline rapier with a floral guard and handle.
Daddy's Little Villain: Unlike in the series proper, she's considered a true member of the Kiryuin family and calls Ragyo 'Mama' with no hesitation. Satsuki notes that, out of all of them, Nui seeks Ragyo's attention and love the most, and tries to emulate her as much as possible.
The Dragon: Not exactly. She supposed to be this for Ryuko, given her status as the Vice President of the Honnouji Academy Student Council, but given how she's almost never around the place and spends most of her time forcing rival companies to bend to the whims of REVOCS, she's more of The Heavy for Ragyo in practice.
The Dreaded: Nui scares people, and with good reason. Only the Naked Nudists are willing to engage her in battle, and that mostly involves a lot of self-detonation. Mako, who is willing to stare down, engage with and work under Ryuko Kiryuin, is scared stiff just by hearing that she's entered Honnouji grounds.
Dull Eyes of Unhappiness: Losing an arm to Uzu renders her usual expressive eyes rather dull until she kicks the crap out of him completely, at which point they go back to normal.
Even Evil Has Loved Ones:
- Even outside of the incest part of their relationship, she's very close to Ryuko, with her older sister completely put at ease at the sight of her in a dire situation. She actually loves her sister so much that, at Soroi's urging, she's willing to undo the Mind Stitching Ragyo had done to her.
- She's also on good terms with Soroi, treating him with respect and warmth unknown to her usual interactions with humans. He's also one of the few people that can get her to disobey her mother.
- Despite how broken their relationship became, a small part of her still loves her eldest sister, as she mourned her "death" in a flashback and even admits that even she can't believe she genuinely misses her after what happened between them. When Ryuko regains her memories of the night Nui tried to kill Satsuki and challenges her about it, Nui confesses that the reason she hates Satsuki so much is because of how much she loves her, and she can't handle how her betrayal of the family makes her feel.
  Nui: (To Satsuki): I know you'll go all funny over this, but I do love you unreservedly. It's just… why do you have to be on the wrong side?
Evil Cannot Comprehend Good: The idea of helping someone for the sake of helping someone is a concept she can't wrap her head around, as her reaction to Senketsu saying as such attests to.
Eviler than Thou: Is considered this compared to Ryuko by everyone who knows of her.
Mako: She's bad! I know you all think Ryuko is bad, and she is, but Nui is even worse!
Evil Has a Bad Sense of Humor: Much like her sister. Though unlike Ryuko, she doesn't really have the sense to know that it's inappropriate.
Nui (To Maiko): Besides, I'm utterly awful in management roles. Just ask REVOCS' Human Resources department!
Evil Is Deathly Cold: She's perpetually cold to the touch, which she uses to creep people out when touching them. A flashback to her childhood shows her cuddling up to her sisters and as many blankets as she can in an attempt to get warm.
Evil Virtues: Love. Despite it being twisted by Ragyo's abuse and manipulations, the love she has for her family is completely genuine, making her highly protective of them.
Eye Scream: Her 'debating' techniques involve this from time to time, as seen when she tortured the Reebok CEO.
Faux Affably Evil: She acts like a sweet little girl and is highly playful, but she's a completely psychotic mass murderer and torturer who enjoys the pain and misery of her victims.
First-Name Basis: Refers to everyone by their first name, regardless of how close she is to them.
Flying Weapon: Fleur de Mort tends to float by her side, then go killing of its own accord. Actually not the case: Nui has a fine Life Fiber tied to the handle of the sword which she uses to manipulate it, making it seem like this trope for the purposes of intimidating her opponents.
Friendless Background: As with Satsuki and Ryuko, due to being homeschooled by Ragyo and taught the inferiority of humans.
Going Commando: As shown when she disrobes in Chapter 17, her outfit only consists of her Lolita dress, without underwear.
Gosh Darn It to Heck!: Notably avoids swearing, unlike her sister. We see in flashbacks that this is due to Ragyo's influence. This habit is dropped completely in Chapter 26, when she finally loses her patience regarding Mako and tries to kill her.
Gratuitous French: Her usual verbal tic, but she also named her sword Fleur de Mort (Flower of Death).
Happily Adopted: The cover story as to why she's part of the Kiryuin family yet has her own last name. It should be noted that; despite knowing the circumstances behind her true birth, Soichiro treats her as if she were his own daughter.
Hell Is That Noise: Her giggling tends to put the fear of God into whoever hears it.
Hidden Depths: Given her choice to have her room be very high due to wanting as close a proximity with the stars as possible, it's heavily implied that she has an interest in astronomy.
High-Pressure Blood: Losing an arm causes a torrent of the stuff to come gushing out of the wound, so much so that Uzu and Tsumugu have to actively dodge the stream or risk getting knocked off their feet.
Holy Backlight: Averted. It's noted that she's the only Kiryuin who doesn't have this. It really bothers her and she thinks it might be because she's adopted and not a true Kiryuin.
Homeschooled Kids: While Satsuki and Ryuko went through the High-Handed schooling system, Nui was kept in the Kiryuin manor and instructed by Ragyo on how to become a master tailor, as well as other duties becoming of the Grand Couturier.
Humanoid Abomination: She's generally depicted as being off in a way that Ryuko, the other Human-Life Fiber Hybrid, isn't. She can move without making a sound, create copies of herself, escape gravity's touch and manipulate her sword without touching it. The sound of her laughter can carry the same force as Ryuko's sword swings, her skin is perpetually cold, and she moves by flipping and blinking in and out of space. When Uzu cuts off her arm in Chapter 21, she's described as being hollow inside, and cotton spills out of one of her wounds during the same fight.
Impact Silhouette: Whenever she is slammed into something, she leaves a cookie-cutter hole in the shape of her body. Even her hair is outlined.
Implausible Hair Color: She has blonde hair even though she's Japanese. Due to her greater ties to the Kiryuin clan she sees it as an obvious sign of her adoption into the family, which bothered her quite a bit as a child.
Improbable Weapon User: While her rapier is a far more standard weapon than her usual tools, she also keeps her parasol and serrated tape-measure to hand as well.
In a Single Bound: While she usually floats with her umbrella, she has been shown to be able to jump far distances with ease. Satsuki muses back to when they were children and how Nui would jump to the roof of their family estate and back down without any injuries.
Jerkass to One: Of the crueler to one variety. Nui tends to act Faux Affably Evil around almost everyone, treating them with thinly veiled disdain and lacing all her sweet talk with stealth insults. When it comes to Mako, however, she drops any attempts at playing polite and makes it clear that she would love nothing more than to kill/torture her in the most violent way possible.
Just Toying with Them: Pretty much all her fights are just playing around with her opponents for her own amusement and to remind them just how beneath her they are. Unfortunately for her, she learns the consequences of this when Sanageyama takes advantage of both her lack of skill and the fact that she doesn't take anyone seriously, resulting in her losing an arm.
Lack of Empathy: Played straight for everyone else, but when it comes to her family, it's...complicated. She's shown to be able to feel genuine love and care for them, but when she tries to express sorrow for Ryuko, Mako notes that her attempt looks more like someone whose only ever heard about feeling sorry from second-hand sources. It's not that she can't feel empathy, it's that she doesn't know how to properly convey it.
Let's Get Dangerous!: After Sanageyama cuts off her arm, she stops playing around and fights with her full strength for the first time in the story. The result is a horrifyingly pissed off Nui delivering an incredibly one-sided Curb-Stomp Battle to both Tsumugu and Sanageyama.
Licking the Blade: Considers doing this as a taunt to Tsumugu, but settles for running her finger down the blade and licking the blood that way, so that her lapse in high-class manners won't get back to Ragyo. Much to her disappointment, there's no blood on the sword to begin with.
Long Hair Is Feminine: Of the three Kiryuin sisters, she's the most overtly feminine (wearing elegant, cutesy dresses, disliking getting dirty, and having a fondness for the color pink) and her hair is so long that even while done up in twintails it still reaches the floor. This also contrasts her to her older sister, Ryuko, who's a tomboy and has her hair cut short.
Loves the Sound of Screaming: Claims that it's a 'glorious sound'. Notably, she enjoys working over non-screamers, because when they break, they don't stop screaming.
Make Sure He's Dead: Carves a chunk of flesh out of the body double she finds at Dr. Matoi's manor, just to make sure that he's actually dead. The last the real Dr. Matoi sees of her, she's pocketing the piece as she leaves.
Malicious Misnaming: Refers to Mako as 'Miko' upon being reintroduced to her by Ryuko, clearly considering the girl beneath her notice.
Me's a Crowd: There isn't a problem, minor or major, that she won't try to solve by throwing dozens of copies at it. From hunting down Satsuki to Honnouji security and control to mass-producing Goku Uniforms to taking up multiple positions on the Student Council, if she can whip up some copies and have them do the task, she will.
My Sister Is Off-Limits: Taken to an extreme in that she'll try to outright kill anyone who gets too close to Ryuko. This happens in Chapter 26, where she tries to murder Mako and really loses it when she learns that Ryuko is in love with her. Uzu even lampshades this after the fact in Chapter 27.
Uzu: I mean, I’ve heard of families not approving of a new partner, but that was ridiculous.
Nonchalant Dodge: Slips around Nudist needle attacks without even looking.
No Sense of Personal Space: Frequently gets in close to people and touches them without permission.
"Not So Different" Remark: From Mako, with Satsuki noting that both of them have the power to confound others around them with their strangeness and lack of respect for what reality should say about a situation.
Oh Crap Fake Out: After Uzu slices one of her arms off in Chapter 21, she pretends to be seriously inconvenienced by the wound, only to spring to her feet and dodge repeated attacks as she tries to play the moment up for drama. Turns into an actual Oh, Crap! not a minute later, as she realizes that the arm has really been severed.
O.O.C. Is Serious Business: In a flashback in Chapter 23, Satsuki sees that she's drained of all color and left dour and depressed, actively trying to avoid eye contact with her mother. It's such a far cry from the usual hyperactive ball of energy that praises everything Ragyo does that Satsuki does her best to discreetly comfort her, despite Nui's attempt on her life the previous night.
Parasol of Pain: Carries her pink parasol as she did in the original show, except it's also used as a sheath for her rapier as well as an offensive and utility tool.
Perpetual Smiler: Is always described as wearing one of some kind, usually with false cheer to really rub in that she's stronger than whoever she's engaging with at the time. The only time it drops is when she gets serious after Ryuko is kidnapped by Nudist Beach, and even then she picks it up again soon after when she's back to bullying other members of the cast.
Pink Means Feminine: She's the most girly of the three sisters and dresses heavily in pink. She even embroiders her name into Sanageyama's new uniform in hot pink letters and redesigns all the Goku Uniforms at Honnouji to have her pink coloration.
Play-Along Prisoner: As of Chapter 23, she and Ryuko are willingly imprisoned within Nudist Beach's Headquarters, but they treat it as more of a holiday, even making modifications to their cells. Nui even pulls a Jotaro, collecting toys from outside to keep herself amused. This is proven in Chapter 26, where she escapes the prison, Ryuko, and Nudist Beach without batting an eyelash, taking the Rending Scissors with her.
Precision F-Strike: She refuses to swear in any circumstance. In Chapter 26, however, she gets so fed up with Mako that she outright calls her a bitch while trying to kill her.
Psycho Lesbian: Much like Ryuko, she's crazy and she loves women (mostly those that are related to her). Though where as Ryuko subverts this, Nui plays the trope to the hilt.
Psychopathic Womanchild: What's especially impressive is that she manages to make Ryuko seem tame by comparison, even after she was Mind Stitched and put back together with her worst aspects.
Rank Scales with Asskicking: She's the Grand Couturier of REVOCS, placing her just under Ragyo and Ryuko in importance to the company. She's also the Vice President of Honnouji's student council, and is inhumanly powerful when carrying out her duties in either role.
Razor-Sharp Hand: After Uzu disarms her during their fight in Chapter 21, she resorts to hacking through his Goku Uniform with nothing more than the edge of her hand, severing metal arm after metal arm with little issue.
Self-Duplication: She can summon huge hordes of identical clones at will, although they're nowhere near as durable as her.
Shameless Fanservice Girl: She has no qualms about parading around naked while disguised as Satsuki just to mess with the captive Ira.
Significant Wardrobe Shift: Switches from her usual pink dress to a white one at the end of Chapter 28, as part of her renewed allegiance to Ragyo.
Sleeps in the Nude: She's shown in Chapter 17 to sleep naked when she climbs into Ryuko's bed. Ryuko even comments on this when she sees that Nui isn't sleeping nude in Chapter 24, with her stating that she refuses to let humans get a glimpse of her body.
Smug Super: She's stronger than most of the cast and absolutely revels in it. She's so nonplussed by Nudist Beach's appearance that she spends Tsumugu's Rousing Speech sunbathing.
Sore Loser: Gets pretty ticked off the moment things don't go her way. Learning that Uzu has undone any control she had over his uniform strips her of her cool in a heartbeat.
Spotting the Thread: She realized that Ryuko and Mako are more than just friends upon learning they're roommates, when Ryuko could have just put her in a guest room.
Stealth Hi/Bye: Can drop in and out of sight as she pleases, which she uses to great effect freaking the hell out of Maiko during their conversation in the student council chambers, jumping off the peak of Honnouji only to appear behind her a moment later.
Super-Speed: She's incredibly nimble at dodging attacks and crosses the city of Osaka in no time flat when she's looking for Ryuko. When moving through the Nudist Beach base in Osaka, she appeared in the cameras as a pink blur.
Super-Strength: She can tear through Uzu's Four-Star uniform like it isn't even there, punch through thick glass without blinking, and can catch most incoming attacks without breaking a sweat.
Suspiciously Specific Denial: Whatever events lead to Ryuko's Mind Stitching, she was very definitely not around for them, and only acts to remove said Mind Stitching because the Kiryuin's overall plan would be affected if she didn't, and even then, she's only doing it under duress. Houka points out that she's laying it on a bit thick.
Sword Beam: She's able to fire off purple, cresent-shaped energy slices using the stolen Rending Scissors.
"Take That!" Kiss: Blows a mocking kiss at Kaneo Takarada during the attack on Osaka, complete with shooting a cutesy little pink heart at him.
Teens Are Monsters: As seen in flashbacks, she's anywhere from being a year younger to six months younger than Ryuko, putting her present age anywhere between 16 and 17. She's also a murderous assassin who thrives off torture and killing.
Tomboy and Girly Girl: The Girly Girl to Ryuko's Tomboy.
Touch Telepathy: One of the benefits of being a Life Fiber hybrid is the ability to connect to the minds of other Life Fibers via skin contact, which she's shown using to communicate with Ryuko.
Troubling Unchildlike Behavior: A flashback from Soroi shows Nui creating voodoo dolls with real human hair, taken from the children who bothered Satsuki and Ryuko at school that day. He notes that there's still blood upon the roots.
Tyke Bomb: Ragyo raised her both as a custom-built assassin and sewing expert to further REVOCS's dominance over the clothing industry.
Ultimate Blacksmith: As REVOCS' Grand Couturier, she's effectively this for the setting. When she overhauls the Goku Uniforms for Honnouji's invasion of Osaka, she notes that she's crammed far more power into them than even the improved designs that Shiro came up with after years of combat testing. Even Uzu, who's Four-Star Uniform has been honed by multiple fights against Ryuko, feels an immediate difference in power upon putting it on. This isn't limited to combat clothes either, as the first thing she does after freeing Ryuko from Nudist Beach's captivity is to knit and tailor a full outfit for her in a second.
The Unapologetic: Makes it clear that she doesn't even feel remotely sorry for what she did to Ira when she tortured and mutated him.
Nui: I'm not apologizing by the way. All's fair in love and war, and we were very much at war.
The Unfavorite: Discussed in Chapter 26. When Soichiro declares Satsuki as his favorite child, Nui jokingly laments that this means she's no one's favorite, as her father prefers Satsuki while her mother favors Ryuko.
Unskilled, but Strong: She's physically in the same ballpark as Ryuko (who's strong enough to effortlessly shatter meteors with her fists) but she notably lacks any real fighting prowess and relies heavily on her more abnormal and superhuman abilities in battle, having never bothered to learn how to properly fight. Sanageyama even calls her out on how no matter how powerful she is, she's a pretty terrible fighter.
Used to Be a Sweet Kid: Sweet to those within the family, at least. Soroi reflects on a time when she truly loved both of her sisters (albeit a touch over-protectively), simply wanted to play with her arts and crafts and could be persuaded from her darker impulses with a bowl of ice cream. Ryuko and Satsuki even reminisce on times when she was genuinely nice. These days, she's Nui.
Verbal Tic: Has a habit of repeating things three times over.
Victoria's Secret Compartment: Keeps her phone in her cleavage due to a lack of pockets on her dress.
Villain Respect: Notes that the student council using a manikin of Houka to distract her is a page right out of her own playbook, and is momentarily impressed...right up until she realizes the implications.
Voluntary Shapeshifter: As she's got both of her eyes in this story, she can assume the form of other people as she pleases.
"Well Done, Son" Guy: While her mother does favor her (but not to the extent that Ryuko is favored), a lot of moments of her POVs show that she's terrified of the prospect of losing her mother's "love" and is desperate to maintain it. It's revealed in Chapter 23 that Ragyo, due to her mistake in her attempt at killing Satsuki, punished her so severely that it left her mortified of disappointing her mother again.
Why Won't You Die?: Gets pretty upset when Tsumugu refuses to die in one hit like the rest of his comrades.
Wicked Pretentious: Puts on the airs of being a high-class lady, but indulges in sadistic violence at the drop of a hat.
Yandere: Is one to Ryuko, given that she wants to horrifically kill and torture Mako just for being in a relationship with her sister. In Chapter 26, she outright attempts to murder her over it.

Junketsu

The REVOCS Kamui and representative of the Life Fibers on Earth. He's Ryuko's loyal friend, companion and killing implement.

Adaptational Personality Change: In canon, Junketsu was The Voiceless and a feral beast. Here, he's more like Senketsu without the morals.
Affectionate Nickname: Ryuko shortens his name down to "Jun" when speaking to him externally and internally.
Ascended Extra: Due to being Ryuko's Kamui and being a Composite Character with Senketsu, he's given more agency and focus than he received in the main series.
Blue-and-Orange Morality: Similar to Ryuko, his grasp on regular morals is rather loose, although in his case it's because the typical spectrum of Life Fiber morals is 'consume and breed, then repeat'. It's also because of this that he ended up causing Ryuko to turn out as she has. When he tried to put her back together after Ragyo broke her, he ended up not understanding her emotions well and put her back together as the monster she is now.
Character Development: An off-screen example; thanks to Ryuko wearing him in various forms over the years, he went from the vicious beast we know from canon to an inquisitive, assessing soul with a touch of sadism.
Chainmail Bikini: Averted. While Junketsu wasn't the most exposing outfit in canon when Ryuko wore him (at least in comparison to when Satsuki wore him and when Ryuko wore Senketsu), here he completely covers Ryuko in full plate armor. By Chapter 28, he plays this straight and becomes far more revealing when he and Ryuko synchronize, akin to how he looked when Satsuki was synchronized with him in canon.
Composite Character: He gains elements of Senketsu in this story, such as his relationship with Ryuko and status as her personal Kamui. Satsuki even manages to permanently cut off his right eye, much like how Senketsu lacked a right eye.
Eye Scream: He permanently loses one of his eyes during Ryuko's fight with Satsuki.
Even Evil Has Loved Ones: Despite being an agent aimed at destroying humanity, he deeply loves Ryuko and will do anything to keep her safe. Even if that means acting against Ragyo's intentions for her.
Even Evil Has Standards: It's telling how awful Ragyo is that even he finds her repugnant. And that's before he learns of Ragyo's true intentions.
Humanity Is Infectious: While he'll never admit it, being with Ryuko since her childhood has made him more humane than even he seems to realize. Isshin even points out that he's learned how to love and care for someone and go against the will of his own kind just to keep that one person safe.
It's All My Fault: It's shown that he absolutely hates himself for his botched attempt to restore Ryuko's mind and what it led to.
Light Is Not Good: Carries the Kiryuin white coloration, but he's as violent and cruel as Ryuko herself.
Like Brother and Sister: Him and Ryuko have a very close, almost sibling like relationship. It probably helps that given that he was created by Ryuko's father, he technically is her brother from a certain point of view.
Minor Injury Overreaction: For a certain degree of minor. He really loses his cool after Satsuki takes off his eye, to the point that Ryuko has to shout him down because his whining is throwing off her concentration. But as he's made of Life Fibers, they acknowledge that Nui will be able to fix him up in no time.
O.O.C. Is Serious Business: He's generally cool and level-headed, if cruel and uncaring towards human life. When he realizes that Ragyo intends to betray the Life Fibers and rule over both them and mankind, he's utterly livid. Much to the shock of everyone.
Precision F-Strike: Despite having spent so much time with Ryuko, he's not one to cuss himself. But upon realising Ragyo's true intentions, he refers to her as an 'utter bitch' with intense venom.
Pure Is Not Good: He's made of 100% pure Life Fibers and his name literally means "purity", but he's far from being a decent individual, despite his character development and name.
The Right of a Superior Species: Firmly believes, even more than the Kiryuins, that the Life Fibers have the complete and total right to devour the Earth and humanity. While he acknowledges that the Life Fibers have the ability to live in co-operation with humans as they are, the idea fills him with disgust, believing that it would reduce the dignity of the Life Fibers as a species.
Royal "We": Uses the 'we' as a pronoun, and is the second-highest ranking member of the Life Fibers, just under the Primordial Life Fiber, who is addressed in divine terms.
Significant Wardrobe Shift: Decides to drop the fully-armored look in favor of a more Senketsu-style appearance from Chapter 28 onwards, signifying that he wants to have as little control over Ryuko's thoughts as possible.
Sleep-Mode Size: Due to his full outfit being too much for an infant Ryuko to wear on a regular basis, he was downsized into a scarf until she was old enough. Being worn by her in this mode is also how he came to obtain a grasp of language and even allowed him to gain a semblance of humanity.
Villain Has a Point: In Chapter 19, Isshin/Soichiro lambasts him for what he did to Ryuko, but Junketsu is quick to fire back that not only was he trying to save her, but after abandoning his family to go to war with Ragyo and the Life Fibers, Soichiro doesn't really have much room to actually lecture him on caring for the middle Kiryuin. His silence after being told this indicates that he agrees.
You Are Not My Father: When held and questioned by Soichiro/Isshin, he bluntly tells him that while he may have created him, he is no more a father to him than he is to the children he abandoned.
Junketsu: What is this, some misplaced parental pride? You are our creator, but you are no more a father to us than you are to those girls.

Mitsuzo Soroi

The family butler of the Kiryuin clan.

Flowery Insults: Upon hearing Maiko's declaration that she intends to try killing Nui.
Soroi: Ms. Ogure, your overconfidence is as inspiring as ever.
Get A Hold Of Yourself Man: He gives an implied one of these to Soichiro during his confrontation with Satsuki in Chapter 26, giving the man a swift slap on the back and some sharp, but unheard words instead of handing him a second glass of whiskey.
It's All My Fault: He's shown in his POV to carry a lot of self-conscious guilt for how the Kiryuin children turned out, lamenting that if he were a stronger, braver man, he'd have taken all of them as far away from Ragyo as possible.
Morality Pet: He's this for Ryuko and Nui. Unlike almost everyone else, Ryuko treats him well and cares for his well-being, even in her darkest moments, such as the time she saved him from a rogue Club President and made it a point to ensure his safety before turning his attempted capturer into red mist. Likewise, Nui cherishes him and considers him family, despite her mother telling her not to care for the hired help. A major reason for this is that he took it upon himself to be a caring father-figure to them throughout their lives.
Parental Substitute: He's the closest thing the Kiryuin children can associate to having a father. It should say everything that Ryuko kept him from watching her fight with Satsuki to spare him from the sight and the first thing Nui did upon finishing off Nudist Beach's forces was go looking for him, and she was positively overjoyed when she finds he's left her favorite drink out for her. Nui even outright states in Chapter 26 that he was practically their father in all but name.
Undying Loyalty: As Satsuki's final orders to him were to serve and care for Ryuko, he'll obey her without question.

The Shadow Council

Dark clones of Ryuko and her Elite Four created by Hououmaru that are sent out to face Satsuki and the Life Fiber Hunters on their return to Honnouji Academy.

Adaptational Early Appearance: With exception to the clones of Ryuko, Mako, and Maiko (whom didn't have clones in the main series), the clones of Uzu and Houka originally first appeared in the OVA after Ragyo's death. Here, they become active while Ragyo is still the Big Bad.
Dark Is Evil: They all have ashen skin and are dark colored variants of their originals. They also serve Hououmaru and by extension Ragyo.
Dragons Are Demonic: Ryuko's clone has draconic wings and a tail, and her ashen appearance gives her a demonic visage.
Evil Knockoff: They're all clones of their original counterparts based on how the No-Stars of Honnouji perceive the student council, and as such are less than flattering to their originals, with Ryuko's in particular being nothing more than a mindless, rampaging monster.
Playing with Fire: Ryuko's copy has the ability to breathe fireballs, inspired by the original's arson attacks on the Honnouji slums. It later upgrades to a mouth laser, and fighting it comes with struggling against the sheer wall of heat that it puts out.
Spinning Piledriver: Ryuko's copy attempts to drop Satsuki with an Izuna drop from miles high during their fight.

Characters / Natural Selection

Main Characters

Satsuki Kiryuin

Ryuko Kiryuin

Life Fiber Hunters

Ira Gamagoori

Nonon Jakuzure

Honnouji Academy

Elite Four

Mako Mankanshoku

Uzu Sanageyama

Maiko Ogure

Houka Inumuta

Student Club Presidents

Beros Goyle

Ryosuke Todoroki

Shusei Kogami

Tomoni Gizona

Momonga Masumoto

Nishizumi Kojima

Rei Itsumi

Shiro Iori

Nudist Beach

Isshin Matoi/Soichiro Kiryuin

Aikuro Mikisugi

Tsumugu Kinagase

Kaneo Takarada

Senketsu

REVOCS

Ragyo Kiryuin

Nui Harime

Junketsu

Mitsuzo Soroi

The Shadow Council

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Index

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Characters / Natural Selection

Edit Locked

Main Characters

Satsuki Kiryuin

Ryuko Kiryuin

Life Fiber Hunters

Ira Gamagoori

Nonon Jakuzure

Honnouji Academy

Elite Four

Mako Mankanshoku

Uzu Sanageyama

Maiko Ogure

Houka Inumuta

Student Club Presidents

Beros Goyle

Ryosuke Todoroki

Shusei Kogami

Tomoni Gizona

Momonga Masumoto

Nishizumi Kojima

Rei Itsumi

Shiro Iori

Nudist Beach

Isshin Matoi/Soichiro Kiryuin

Aikuro Mikisugi

Tsumugu Kinagase

Kaneo Takarada

Senketsu

REVOCS

Ragyo Kiryuin

Nui Harime

Junketsu

Mitsuzo Soroi

The Shadow Council

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Index

Next