Kuro no ikenie (Black Sacrifice)

As Walpurgis Night approaches, the evil Academy nurse Reika Kitami reveals her history and true nature when torturing and raping art professor Hiroko Takashiro. With Taki Minase, Kaori Saeki and her witchcraft club friends Jun and Maki firmly under her control, she arranges the rape of Minase's girlfriend Rika Shiraki and kidnap of his childhood friend Kurumi Imari to use as a vessel for her soul.