Title: Diabolus: Kikoku
Japanese Title: Diabolus 鬼哭
Released Date: Dec 21, 2009 till Feb 26, 2010
Based on erotic game by Dark Shelf.
A spirit who takes the form of an attractive male is attacking many female students at a school. Two students discover that the only way to free him from his wandering around Earth is to have him fulfill his desire and so they decide to take a hands on approach and make him rest in peace at last.