History Manga / KangokuGakuen

* SanitySlippage: Hana was CuteAndPsycho to begin with, but the terrible things that happen to her over the course of the story do not do wonders for her sanity.

** Mari on Keito. [[spoiler: Mari manages to break out of prison by smuggling in a pair of handcuffs under the assumption that a paranoid Keito would bind the two girls together to make absolutely certain Mari couldn't escape from her sight, then making it look like Keito's room had been broken into, thus forcing Keito to take Mari with her when she went to investigate. Had Keito not used the handcuffs on herself the plan would have failed, but (double spoiler) [[note]]Mari correctly suspected that Keito wouldn't pass up the opportunity to be chained to her crush![[/note]] ]]

* {{Gaslighting}}: [[spoiler: Kiyoshi's]] chosen method of distracting Risa is to essentially drive her steadily nuts with various perverted acts.

* PantyThief: [[spoiler: It turns out that what Keito keeps in her treasure box is a set of underwear she stole from Mari.]]

** Mari on Keito. [[spoiler: Mari manages to break out of prison by smuggling in a pair of handcuffs under the assumption that a paranoid Keito would bind the two girls together to make absolutely certain Mari couldn't escape from her sight, then making it look like Keito's room had been broken into, thus forcing Keito to take Mari with her when she went to investigate. Had Keito not used the handcuffs on herself the plan would have failed but (double spoiler) [[note]]Mari suspected that Keito wouldn't pass up the opportunity to be chained to her crush![[/note]] ]]

** Mari on Keito. [[spoiler: Mari manages to break out of prison by smuggling in a pair of handcuffs under the assumption that a paranoid Keito would bind the two girls together to make absolutely certain Mari couldn't escape from her sight, then making it look like Keito's room had been broken into, thus forcing Keito to take Mari with her when she went to investigate. Had Keito not used the handcuffs on herself the plan would have failed but, (double spoiler) [[note]]Mari suspected that Keito wouldn't pass up the opportunity to be chained to her crush![[/note]] ]]

* ChainedHeat: [[spoiler: Keito handcuffs herself to Mari in an attempt to make absolutely certain Mari can't fulfil her promise to escape on the day of the sports festival. It looks as though this might end up backfiring however, because it's implied that tricking her into doing so was [[HandyCuffs all part of Mari's plan.]]]]

* AbsurdlyPowerfulStudentCouncil: The main purpose of the Underground Student Council is to enforce the school's rules against male/female interaction on school grounds. To do that they're allowed to lock up any student caught breaking those rules in the school's fully functional prison, that they run with almost no supervision from the school facility. A lot of the abuse they put can put their prisoners through violates school rules but lack of supervision makes it easy to get away with it.

* MajorInjuryUnderreaction: When Kiyoshi gets stabbed in the butt for the second time he downplayed the severity of his injury and simply blames it on his hemorrhoids despite clearly having a piece of a branch lodged up his profusely bleeding ass.

* AGlassInTheHand: A variant, Hana pops a water bottle after finding out that [[spoiler: after all the horrors she endured failing to force Kiyoshi to pee in front of her as revenge for seeing her peeing, he then went and did so completely casually in front of Risa.]]

* IThoughtThatWas: Anzu gets two tickets for her and Shingo to watch TheGrapesOfWrath which is a very subdued film but the title causes the two to mistake it for something akin to AttackOfTheKillerTomatoes Or at least Shingo did, Anzu knew exactly what the movie was and used it to bore Shingo asleep to mess with his sense of time so he'd be late for his curfew.

** The trope's [[MarshmallowHell less pleasant cousin]] occurs in a flashback chapter where Meiko puts one of her bullies in a [[http://i.imgur.com/HJsdHe3.jpg choke hold from behind]]. Due to the height difference between them and Meiko's large breasts, [[http://i.imgur.com/YjzjyGo.jpg the bully's head gets completely engulfed in her cleavage causing him to get suffocated and faint]].

** And later Mitsuko quite understandably mistakes Gakuto and Jo for a couple after seeing them role-play as such, ironically in an effort by Gakuto to become more comfortable with her [[YaoiFangirl interests]].

* AlwaysSomeoneBetter: For a while is seemed like Meiko and Hana where the two strongest fighters in the school. Then Risa is introduced, outfights Meiko, and even manages to block simultaneous kicks from both if them.

* EnemyMine: [[spoiler:Kiyoshi and the Underground Student Council minus [[HazyFeelTurn Hana]], and especially [[ShipTease Mari]].]]

** After a group of Keito's lackeys try to force her into a ShamefulStrip, it turns out that Chiyo's knowledge of Sumo isn't restricted to simply appreciating it.

* YourEyesCanDeceiveYou: The main reason why Meiko struggles with her arm wrestling match with Andre is because she can't stop staring at his long lone nipple hair. She then realize it's not a distraction if she can't see it, closes her eyes and quickly wins.

* IThoughtThatWas: Anzu gets two tickets for her and Shingo to watch TheGrapesOfWrath which is a very subdued film but the title causes the two to mistake it for something akin to AttackOfTheKillerTomatoes. At least Shingo did, Anzu knew exactly what the movie was and used it to bore Shingo asleep to mess with his sense of time so he'd be late for his curfew.

* FreudianSlip: Mari is quick to reassure Chiyo that she hasn't let a boy put so much as a finger in her. '''On her!'''

* FreudianSlip: Mari is quick to reassure Chiyo that she hasn't let a boy put so much as a finger in her. '''On her'''!

* AGlassInTheHand: A varient, Hana pops a water bottle after finding out that [[spoiler: after all the horrors she endured from trying to force Kiyoshi to pee in front of her as revenge for seeing her peeing, he then went and did so completely casually in front of Risa.]]

* ForgottenBirthday: Inverted, Chiyo is relieved to realise that she was mistaken that her sister's suspicious behaviour [[spoiler: while planning a breakout]] is because she's become a slut, because she starts mistaking it as Mari planning a SurpriseParty for her birthday instead.

* ForgottenBirthday: Inverted. Chiyo realises she was mistaken that the cause of her sister's strange behaviour was that she'd become a slut... because she starts mistaking it as Mari planning a SurpriseParty for her birthday instead!

* ForgottenBirthday: Inverted, Chiyo is relieved to realise that she was mistaken that her sister's suspicious behaviour [[spoiler: while planning a breakout]] is because she's become a slut, because she starts mistaking it as Mari planning a SurpriseParty for her birthday instead.

* [[{{DOminatrix}} Dominatrix]]: Risa tries to be Andre's Dom since Meiko, after the fire incident, is incapable of hurting him. She's having little success since she not as wicked as Meiko so all of her abuse ends up being too soft for Andre.

* AGlassInTheHand: A varient, Hana pops a water bottle after finding out that [[spoiler: after all the horrors she endured trying to [[ItMakesSenseInContext get Kiyoshi to pee in front of her]] he did so completely casually in front of Risa.]]

* ClingyJealousGirl: [[spoiler: Surprisingly, Chiyo shows some shades of this when she believes Mari is stealing Kiyoshi away from her, thanks in part to a series of misunderstandings she has witnessed that made her believe Kiyoshi and Mari are dating. Not that Chiyo and Kiyoshi themselves are actually dating, but still...]]

* AGlassInTheHand: A varient, Hana pops a water bottle after finding out that [[spoiler: after all the horrors she endured trying to [[ITMakesSenseInContext get Kiyoshi to pee in front of her]] he completely casually did so in front of Risa.]]

** And her catsuit and her panties, all on separate occasions. A pattern emerges.

* CruelMercy: After the incident with Gakuto's action figure Meiko begs Mari to punish her. Mari refuses to do so and tells Meiko it's not her fault but she says it in a backhanded way by saying it's her fault for trusting Meiko to handle the situation. Despite Mari's merciful response Meiko notes that by her not punishing her she can't atoned for her actions so in a way Mari is still punishing her.

** Kiyoshi finds a sewer drain that stretches across the whole school and has enough space for one person to crawl around in it, which is useful for his break out plan. So he decides to practice crawling in the drain and ends up under Meiko who's doing hindu squats. [[http://imageshack.us/a/img855/6195/fcxn.jpg The heel of her stilettod boots slips in an opening and goes right in Kiyoshi's anus]]. [[IAintGotTimeToBleed Kiyoshi doesn't even realize how bad it is until Shingo points out to Meiko]], inquiring why Kiyoshi's restroom break was so long, that Kiyoshi's bleeding from his anus because of hemorrhoids.
** The second time is when he tackles Jo, who charges at Mari with a broken-off branch because her crows attacked his ants. [[http://imageshack.us/a/img14/4968/ek33.jpg When Kiyoshi steps in to stop him, the branch ends up lodged up his anus]]. Despite bleeding profusely Kiyoshi downplays the injury and [[http://imageshack.us/a/img6/4811/mmeq.jpg blames it on his hemorrhoids]] so Jo won't get in anymore trouble.

* SureLetsGoWithThat: Kiyoshi does not have hemorrhoids but nor does he have a good lie when Meiko asks him why he was in the restroom for so long. Shingo, who sees that Kiyoshi is bleeding from his butt [[http://imageshack.us/a/img842/2972/ovhh.jpg assumes it's hemorrhoids and tells Meiko]]. As embarrassing as it is Kiyoshi decides to go with that.