Kazunori Tani

Kairo Aoi, a young teacher with striking good looks, has just learned that his new student, Sora Amakami, is the alluring teen prostitute he once hired. Here the nightmare begins. As the walls of the prestigious academy become a percolating hotbed of sexual intrigue, prostitution and blackmail, other students, including Sora's nerdy roommate and the sinister campus bully, are pulled down the same torrid path of unquenchable desire toward the inevitable moment when obsession turns deadly.

Out of curiosity decides Nanami and Daisuke to join the school's "occult detective club" which is currently examining a curse that has to do with a student who killed herself last year. An old doll found in the back of her closet turns out to be what drove her to suicide. They get to a "cemetery, however," but the "dead" dolls detects intruders and come alive.