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Characters / Kyochuu Rettou

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     Oribe Mutsumi
a.k.a Bug Girl
Voiced by: Mao Ichimichi

Houshou Private High School; 2nd Year, Class 1

A normally quiet girl in class who's secretly a fanatic for insects. It's her and her knowledge of the creepy and the crawly, along with her wilderness survivor know-how, that the group must rely on in order to get them to a safe place and keep them all from dying to the many deadly insects they meet along the way.

  • Apologetic Attacker: She's reduced to tears over having to kill insects, even to save her classmates and herself.
  • Chekhov's Hobby: Even before using her skill to battle off and kill the island's giant insect population, Mutsumi had displayed some knowledge of how to survive in the wilderness, and her knowledge of a variety of insect types. The captain makes reference to the idea that Mutsumi had just been a loner girl who liked to sit in the back of the class reading about insects.
  • Friend to Bugs: When she was young she was scared of bugs, but after spending time with Enoki-sensei she eventually became the bug-loving girl we all know. It's to the point where she's initially reluctant to harm any insects — even the giant ones that are eating her classmates — and breaks down in tears apologizing when she's forced to.
  • Ignored Expert: Whenever her classmates ignore her advice, their survival rate drops from unlikely to nothing.
  • Nice Hat: Mutsumi wears a very distinguishing hat since the time of her plane crash, and is rarely seen without it since. Also somewhat doubles as a Hat of Authority since she usually ends up in charge of the situation and telling people what to do when the latest insect emergency arises.
  • The Smart Guy: Thanks to all her time sitting in the back of the class reading up on insects, she is well versed in information about them and their habits, along with how to survive in an emergency situation such as being lost in a place with no help for a few days. It is this intelligence that everyone must rely on in order to survive.


    Naruse Chitose 
Voiced by: Rika Tachibana

Houshou Private High School; 2nd Year, Class 1

Class representative of Class 1, a righteous-minded girl and best friend of Mutsumi. She seeks to not only survive herself, but stay on the right path and save others as well, even when they may not entirely deserve it.

  • Boobs of Steel: Well endowed and once she's given a bamboo sword, bugs start to drop dead.
  • Braids of Action: Her hair is tied in two long braids, and once she has the chance, she proves her badass credentials.
  • Class Representative: She was this back in school, and is even called by the other students.
  • Damsel in Distress: Gets kidnapped by a wasp at the end of the first chapter, forcing Mutsumi to save her and is later tied up by Misuzu and Kamijo.
  • Going Commando: Because Misuzu took off her panties and then a crab ate them, she's forced to walk this way.
  • The Lancer: Not only she's Mutsumi's closest friend, she's the one who follows her advice the most.

     Matsuoka Ayumi
Voiced by: Misato Fukuen

Houshou Private High School; 2nd Year, Class 1

Captain of the school softball team, an athletic girl with a kind heart, but a no-nonsense attitude along with it. She always puts herself at the forefront of the action when it comes to helping people, or staving off the latest insect threat.

  • Boobs of Steel: Ends up doing a lot of giant insect asskicking, and is very well endowed.
  • Heroic Sacrifice: Protects Mami from the firefly larvae at the cost of her life.
  • Huge Schoolgirl: She's one of the tallest girls in the group.
  • Sacrificial Lion: She was the first person in Mutsumi's group and lasted for several chapters, only to die to protect the one she grew to care about.
  • Schoolgirl Lesbians: She had unrequited feelings for Oribe, and became a couple with Mami.

     Jinno Misuzu
Voiced by: Chiaki Takahashi

Houshou Private High School; 2nd Year, Class 1

A lewd-behaving girl whose sole interest lies in her own survival. Is not afraid to use any means at her disposal, including her own body and even other people, in order to get her way.

  • Bi the Way: She has sex with multiple men, but also molests Mami and tries to rape Chitose.
  • Enemy Mine: She initially conspires with Kamijo against Mutsumi, but when it becomes clear that keeping Mutsumi alive is her best chance at surviving she changes sides.
  • Disney Death: The first chapter of Dai Kyochuu Rettou reveals she survived the JSDF ship blowing up, though she was captured by a pair of mercenaries and sexually tortured by one of them - a woman even more vicious and cruel than herself.
  • Evil Redhead: Not necessarily evil, but acts like a bitch a lot of the time, and is willing to sacrifice others if it means her own survival. Though even this trait seems as though it might be mellowing out as the story progresses.
  • Heroic Sacrifice: When the giant centipede attacks the ship while the group is trying to escape, Jinno sacrifices herself to distract it and blow the ship up. It's revealed in the first chapter of the sequel that she survived.
  • Sextra Credit: Was spotted having sex with one of her teachers by Chitose in order to get a good grade on an upcoming test.
  • A Taste of Their Own Medicine: In Dai Kyochuu Rettou, Jinno is sexually tortured by a female mercenary who's even more sadistic than she is; mirroring Jinno's own treatment of Chitose.
  • Who Wears Short Shorts?: Throughout her time in the manga she has worn a pair of shorts so tiny and fitted that they may as well be a pair of bikini bottoms.

     Kamijo Atsushi 
Voiced by: Wataru Komada

Houshou Private High School; 2nd Year, Class 5

A delinquent who aims to be the group's leader, and will try to do so in any situation by any means. No matter what the situation may be or who he endangers with his rash actions.

  • Death by Sex: He blackmails Suzuki into having sex with him, leading to them both being raped and impregnated by giant botflies, whose larvae eat them from the inside-out.
  • Laser-Guided Karma: After threatening Suzuki into having sex with him, he's anally raped by a giant botfly. Unfortunately, Suzuki suffers a similar fate.
  • Leader Wannabe: He immediately proclaims himself leader, but all he does is being a petty thug and walk straight into danger. The only reason he lasts so long is because he started following Mutsumi's orders.
  • The Load: As soon as a stinkbug bites him, he whines and becomes totally useless.
  • Sanity Slippage: While already a nasty person, he becomes increasingly unhinged as the story progresses.
  • Small Name, Big Ego: Acts as if he's a badass who everyone should obey, but he's nothing more than a stupid thug that only survives for so long thanks to dumb luck and the fact Mutsumi won't let him die.
  • Too Dumb to Live: While his stupidity had already gotten him into trouble before, his final one takes the grand prize: Mutsumi warns him they need to keep the fire going so the smoke scares off the insects, and that they're attracted to sweat and carbon dioxide. So what does he do? Forcing Suzuki to have sex with him (which obviously involves lots of sweat and breathing), and then they both fall asleep. Three guesses what happened next, and the first two don't count.

    Miura Mami 
Voiced by: Momo Asakura

A popular idol who attends the school, is the object of adoration by many of her male (and some female) classmates. Though physically and emotionally weak, and not adept to the harsh wilderness of the island, she is still intent on surviving by any means necessary.

  • Idol Singer: Mami has made mention that she has produced a CD that has sold an impressive amount of copies, and is fairly famous in their school.
  • Sanity Slippage: When Matsuoka dies protecting her from firefly larvae, Mami snaps and blames Marika and Nozomi for not letting them inside the cabin.
  • Schoolgirl Lesbians: With Captain Matsuoka, who she has sex with in exchange for protection from Misuzu.

     Kai Kazuhiko 
Voiced by: Takuya Eguchi

Houshou Private High School; 2nd Year, Class 4

A seemingly self-interested punk who only aims for his own survival, often ends up playing an integral role of the group's survival due to his quick thinking and technical know-how.

  • Alliterative Name: Kazuhiko Kai
  • Death Glare: Delivers a particularly evil one after stopping a survivor from attempting to rape Mutsumi.
  • Dreadlock Rasta: Though not especially known for being a delinquent, Kai has shown some disdain for authority figures and a bit of a laid-back attitude. Though he has been shown to also have hung out with the likes of Leader while in normal school, which contributes to his usual image of being something of a punk.
  • Jerk with a Heart of Gold: Initially he acted vaguely wishy-washy about his allegiances, only seeming interested in his own survival, Kai goes on to prove himself as a steadfast ally to Mutsumi's group, going out of his way to help other people even when it may endanger himself. Even back when he was in school, he was shown to want to help people being bullied.
  • Master of Unlocking: Was the one to get the group into the hospital initially, claiming he got in through an open window, but he reveals later on that he had actually picked the lock on the hospital door and just lied about it. He claims that things like this are his specialty.
  • Rape Is a Special Kind of Evil: He shows utter contempt for Usui for trying to rape Mutsumi.
  • The So-Called Coward: Kai prefers to mostly stay out of anything that might put himself at risk, but when one of his friends is in danger, he is shown to be one of the ones most willing to help and quickly formulates ideas to contribute to saving the group.

     Shirakawa Miki 

Houshou Private High School, 2nd Year, Class 2

A shy, quiet girl in the group, an alert girl with good hearing due to her timid nature. She has a grandmother at home who is diabetic.

     Tsuge Hiroshi 

Houshou Private High School; 2nd Year, Class 4

A survivor of the plane crash.

  • Delinquent Hair: Has a pompadour.
  • Eye Scream: A swallowtail butterfly stabs him in the eye with its proboscis.
  • Red Shirt: He's only there to be killed by the butterflies.

     Inou Ai 

Houshou Private High School; 2nd Year, Class 2

An energetic girl from the school Wandervogel Club, knows how to make simple maps. The first casualty to the giant insects.

  • Cruel and Unusual Death: Having your insides sucked out by a swallowtail butterfly via Orifice Invasion is not a pretty way to go, and it shows what's about to come.
  • We Hardly Knew Ye: As one of the first casualties of the giant insects, she got very little time to show much character before she died.

     Oda Satoshi 

Houshou Private High School; 2nd Year, Class 3

An overweight boy in the group, one of the earliest casualties to the giant insects.

  • Otaku: Is not seen doing anything otaku-ish, but is mentioned as one by one of the group members.
  • We Hardly Knew Ye: Due to his sudden death in early chapters while trying to save Mami.

Marika-sensei's Group

     Chuujou Marika 

Houshou Private High School; Homeroom Teacher of 2nd Year, Class 5

Seemingly the only adult left alive on the island, a stubborn woman who seeks to take charge of all of the students and dislikes any perceived challenges to her authority, even when the people questioning her actions might have a point.

  • Cruel and Unusual Death: She's ripped to pieces by the thread of the panicking trap-door spider.
  • Kick the Son of a Bitch: While she wasn't much better, when she kicked Mazawa over the cliff you might have cheered a bit.
  • Leader Wannabe: She tries to take charge, but is pretty clear she's callous and utterly useless to lead the students.
  • The Load: Her stubborn refusal to listen Mutsumi and her obsession with safety leads to several unnecessary deaths.
  • Not Now, Kiddo: Marika evokes a far more callous variant, dismissing Mutsumi out of hand due to her only being 15.

    Aoyama Nozomi 

Houshou Private High School; 2nd Year, Class 4

A girl who is extremely loyal to Marika due to being saved from Miss Nozawa by her. Aoyama Nozomi is willing to defend Marika's actions and even threaten others when it seems they might let her be harmed or question Marika's authority.

  • Attempted Rape: In Dai Kyochuu Rettou, she forces herself on Oribe in the hallway of a beach showering facility, only to be stopped by Chitose.
  • Bring My Brown Pants: Wets herself when she finds herself surrounded on three sides by hungry beetles.
  • I Just Want to Be Loved: Her low self-esteem and desire to be loved are what lead her to become Nozawa's sex toy and later Marika's loony supporter. Now she has transferred her affections towards the one who saved her, Mutsumi Oribe.
  • The Load: At first she was only an annoying deadweight because of her blinding devotion to Marika, but after losing her marbles she turns into a very dangerous and vindictive deadweight.
  • Love Makes You Evil: Combined with Love Makes You Crazy, since she loses most of her sanity in her desire to kill Mutsumi for (indirectly and unintentionally) leading Marika's death.
  • Nice Job Breaking It, Hero!: When she tries to scare off the trap door spider using the recorded wasp sounds, the cornered arthropod ends up tightening its thread so much it rips Marika to pieces.
  • Replacement Goldfish: In Dai Kyochuu Rettou she asks Oribe to be a replacement for Marika as she forces herself on her.
  • Sanity Slippage: She initially acted as Marika's Number Two, stubbornly ignoring Oribe's warnings and advice. After Marika is killed, Nozomi snaps and repeatedly tries to kill Oribe, blaming her for her lover's death. After the group arrives on a new island, however, she declares that she wants Oribe to be Marika's replacement before sexually assaulting her.
  • Stupid Evil: Puts Marika's severed hand on Mutsumi's bag in order to attract giant bugs, despite being obvious those same insects would also kill her and everyone else. She later tries to push Mutsumi onto a pile of millipedes in order to poison her, only to end up falling herself. This is while a giant centipede is nearby.
  • Trouble Magnet Gambit: Her plan to kill Matsumi using Marika's severed hand.
  • You Gotta Have Blue Hair: As shown in the volume 5 cover, her hair is a shade of green.

    Momosaki Kasumi 

Houshou Private High School; 2nd Year, Class 3

  • The Load: Almost as bad as Mami, constantly getting scared, running off and whining about the situation.
  • Nice Hat: Wears a pretty one during the day. After the incident with the tiger beetle larvae, she seems to have lost it.
  • Ojou Ringlets: The ends of her hair have curls, and it fits her rich upbringing.
  • Rich Bitch: Seems to come from a wealthy family, and is quiet bitchy at first.
  • Shameful Strip: Forced to strip naked and is almost raped by Kamijo, luckily the scarab beetles interrupt the attempt.

     Suzuki Kayo 

Houshou Private High School; 2nd Year, Class 2

  • Cruel and Unusual Death: She's raped by a giant botfly, the larvae of which burst by the dozen from her abdomen. It's just as nasty as it sounds.
  • Death by Sex: Kamijo blackmails her into having sex with him, leading to them both being raped and impregnated by giant botflies, whose larvae eat them from the inside-out.
  • Hair Decorations: Wears a hairband, which is her most outstanding feature.
  • Mauve Shirt: Lasts for several chapters, but as soon as she gets some spotlight, things get nasty.
  • Rape as Drama: Kamijo threatens her into having sex with him and they fall asleep together. When they wake up they're attacked by giant botflies, one of which stabs its ovipositor into her vagina and the other stabs its ovipositor into her throat as she begs for Oribe to come save her. In the next few chapters, she's shown being impregnated with the botflies' larvae, expanding her torso to disgusting levels and resulting in them bursting from her body, killing her.

     Minowa Takeshi 

Houshou Private High School; 2nd Year, Class 5

A tall, strong student and member of the school Judo Club and a National Polity Strengthening member.

  • Cruel and Unusual Death: Gets his innards liquified and then sucked dry by the trap door spider.
  • Gentle Giant: Pretty big, but is generally a reasonable guy. He also has the odd distinction of not being a rapist.
  • Mauve Shirt: Lasts for some chapters, and then he's killed by the trap door spider.

     Miyasono Emiko 

Houshou Private High School; 2nd Year, Class 4

  • We Hardly Knew Ye: Lasts very little and is then dragged to her death by the tiger beetle larvae.

     Usui Ryou 

Houshou Private High School; 2nd Year, Class 2

  • Attempted Rape: He grabs Mutsumi and tries to rape her while the group is walking at night, but is stopped by Chitose and Kai.
  • Casanova Wannabe: He's fairly handsome and thinks he's the hottest boy in the school and hits on every girl he meets, but he has a reputation for being scum and is coldly rebuked off.
  • Laser-Guided Karma: Just as it seems like he might get a Karma Houdini over trying to rape Mutsumi — Nozomi disregarding Chitose's accusations and blaming Mutsumi for holding the group up — he's eaten by a swarm of firefly larvae.
  • Slashed Throat: One of the fireflies chews on his carotid artery, killing him within seconds.
  • We Hardly Knew Ye: All we know is he's a pervert and wannabe rapist, before dying to firefly larvae.

     Miss Nozawa 

Art teacher of Houshou Private High School, was killed by ticks after being pushed off a cliff by Marika.

  • Asshole Victim: Her way of death is rather horrible, but once you find out what she did to Aoyama, you'll probably won't feel sorry about her fate.
  • Four Eyes, Zero Soul: Wore glasses and was a blackmailer and depraved molester.
  • Sadistic Teacher: Blackmailed and molested Aoyama and even forced her to pose nude for her art class against her will.

Other Characters

     Enoki Inaho 
Voiced by: Marina Inoue

An entomologist who befriended Mutsumi and taught her everything there is to know about insects.


Example of: