Shion Sonozaki

Shion is a 15 year girl. and a villain in the anime series Higurashi no naku koro ni. She falls in love with a boy named Satoshi Hojo. But when he disappears as a reponse to the infamous Oyashiro's Curse she suspects that her family is reponsable and as a result goes insane. Shion tourtures the head of the village of Hinamizawa causing him to hang by his neck! She drugs Rika Furude who ends up stabbing herself in the head repeatily! She also brutally stabs Satoshi's sister Satoko! And locks her twin sister Mion in a prison cell forcing her to watch all the awful things she does