Yandere

And it finally answered the question as to whether Senjougahara is tsundere or yandere.

Looking at anime charts, there's always the harem series with the dense hero and a bunch of girls whose personalities are pulled out of a set cast of tropes (the Childhood Friend, Tsundere, Yandere, and Lolita, for instance).

“Believe it, man. In fact, she's seriously creepy. Like creepier than that pink-haired girl from Future Diary.” “Wait, what?” Sam got that reference quickly, but was not happy with the comparison. She wasn't a psychopathic, murderous Yandere stalker, from what he could see.