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[MangaDex]

 

[ArsenalTech]

A more bold Kuroneko in the anime would've certainly been more interesting.

 

[Kaarme]

Kousaka Kyousuke, 17, found dead in his own room. Cause of death intracerebral hemorrhage due to massive head trauma. Victim's sister, Kousaka Kirino, 15, initially arrested on suspicion of manslaughter, but later released with no charges due to the Japanese constitution granting psychotic little sisters an unequivocal right to mutilate, including using lethal force, their older brothers.