History NightmareFuel / Inuyashiki

* Shishigami's planned genocide of Japan's population evokes imagery of mass shootings which can be hard to watch. What's worse is that as long as he sees someone on camera, he can kill them anywhere at anytime,even if they aren't watching TV or checking their phones.

* Shishigami's planned genocide of Japan's population evokes imagery of mass shootings which can be hard to watch.

* Hiro Shishigami. A seemingly-normal highschooler that becomes a SerialKiller after being turned into a cyborg. Aside from the AdultFear of his family being oblivious to his actions, there's the fact that he [[WouldHurtAChild has no qualms about killing every member of the families he murders.]] The first family he kills includes a father bathing his son in the tub. When Hiro shoots him, the man falls on top of his son and Hiro waits until the boy finishes drowning before he leaves. Watching the boy's arms flail in panic and seeing his fingernails tear strips out of his fathers back before finally going still should make it ''abundantly'' clear what sort of person Hiro is.

* Hiro Shishigami. A seemingly-normal highschooler that becomes a SerialKiller after being turned into a cyborg. Aside from the AdultFear of his family being oblivious to his actions, there's the fact that he [[WouldHurtAChild has no qualms about killing every member of the families he murders.]] The first family he kills includes a father bathing his son in the tub. When Hiro shoots him, the man falls on top of his son and Hiro waits until the boy finishes drowning before he leaves.

* Hiro Shishigami. A seemingly-normal highschooler that becomes a SerialKiller after being turned into a cyborg. Aside from the AdultFear of his family being oblivious to his actions, there's the fact that he [[WouldHurtAChild has no qualms about killing every member of the families he murders.]]

* '''Shishigami'''. A seemingly-normal highschooler that becomes a SerialKiller after being turned into a cyborg. Aside from the AdultFear of his family being oblivious to his actions, there's the fact that he [[WouldHurtAChild has no qualms about killing every member of the families he murders.]]
* The whole arc between Chapters 19-27 is about a big and scary Yakuza mobster that drugs and kidnap a woman with very implied intetions to rape her [[ForTheEvulz just because he can]]... and it happens twice! In the first time, she escapes, but is tracked down by the criminals and kidnapped again, with her husband almost being killed during the attack. [[spoiler: Luckly, she is saved by Inuyashiki, who gave the mobster a fitting punishment in the form of a FateWorseThanDeath.]]
* Chapter 30.5 revolves around Shishigami; NightmareFuel is to be expected. What isn't expected is [[spoiler: him killing a group of home invaders that already attacked a home he had staked out.]]
* Chapter 38, fittingly named "Kill You All". [[spoiler: Shishigami snaps after his mother's suicide and graphically massacres the news team interviewing his father]].
* Shishigami [[spoiler: hijacks more than thirty planes and makes most of them crash around Tokyo, killing and injuring tens of thousands.]] Pure, concentrated nightmare fuel.
* Shishigami encouraging a young boy to [[spoiler: put his phone to his ear so he can kill him. The relief one feels when his plan fails and the phone hits the ground is almost palpable.]]

* Chapter 38, fittingly named "Kill You All". [[spoiler: Shishigami snaps after his mother's suicide and graphically massacres the news team interviewing his father]].

* The whole arc between Chapters 19-27 is about a big and scary Yakuza mobster that drugs and kidnap a woman with very implied intetions to rape her [[ForTheEvulz just because he can]]... and it happens twice! In the first time, she escapes, but is tracked down by the criminals and kidnapped again, with her husband almost being killed during the attack. Luckly, she is saved by Inuyashiki, who gave the mobster a fitting punishment in the form of a FateWorseThanDeath.