Guided by her grandfather's WWII-era diary, Sora searches for a mysterious trove in the wilderness of her hometown. Meanwhile, a mysterious mute and backward-walking homeless man wanders into town who may be the catalyst to put her shattered relationship with her father back together.

A house infested with ghosts. 25-year-old Reiko is toyed with by an evil spirit every night and ascends to heaven. She requests an exorcism investigation and meets a woman. The exorcism hunter is led to the room where the ghost is found, where she encounters something unexpected. Then the blue man's arm suddenly disappears. When she sees him again, an abnormal sensation of a mixture of fear and pleasure awaits... A sex spirit is coming to violate me! What is the secret of the horrifying sex ghost...?