The SPR team, joined by the exorcists and mediums from the previous case, are requested at a house where poltergeist-like activity has been taking place. Soon after their arrival, the ghostly occurrences escalate, leading Bou-san to conclude the house is haunted by something more than a mere poltergeist. A young girl in the family, Ayami, exhibits strange behavior, claiming her doll Minnie has been speaking to her. The SPR team observe Minnie closely, with disturbing results.

The highly publicised Ryokuryou High School is brought to the SPR's attention when students report a series of terrifying events, including a ghostly dog attacking them. The SPR gathers information with the help of the school valedictorian, Yasuhara, and learn the incidents began after Sakauchi, a first year student, committed suicide. During the installation of cameras around the school, Mai encounters Sakauchi's ghost.