The SPR are asked to handle a case at the Yuasa High School, where a series of unusual events are seemingly related to a cursed desk and a haunted clubroom. Rumours circulating the school population implicate a girl with psychokinesis, who had previously vowed to 'curse to death' all the doubters of her gifts.

The team arrive at the conclusion that the sheer number of occurrences at the school would require a psychic power far greater than anyone could possibly possess. Coupled with Masako's insistence the school houses no spirits, Naru begins to believe someone is using a form of voodoo, calling on gods to carry out their desires. The discovery of human-like dolls under the desk and in the clubroom seem to confirm this.

Evidence against the psychokinetic girl, Kasai, begins to pile up. Mai refuses to believe Kasai is responsible, despite Bou-san and Ayako's beliefs to the contrary, saying she has a feeling within her that Kasai is innocent. While searching for more dolls, Mai is lured to an open manhole by the ghost of a crying child. Naru fails to save her from falling in and instead, they both find themselves inside the hole.

Bou-san, Ayako, and Mai destroy the dolls, effectively removing the 'curse' on the school. Naru is sent to the hospital as a result of the manhole accident, where he makes a startling revelation regarding the past of someone at the school. He clears Kasai's name, but is forced to accuse someone close to her in the process. After the case, the team return to the SPR, where Naru successfully tests Mai for psychic abilities.

John brings the SPR their next case on Christmas Eve. Children at a local church are being possessed by the ghost of a mute boy who vanished one day during a game of Hide and Seek. The boy, Kenji, hides in the woods once he claims a body. While in control of a child, he mistakes Lin for his dead father and clings to him. John exorcises Kenji from the child he resides in, but Kenji then promptly possesses Mai.

While Naru searches for Kenji's body, Lin is ordered to play with Kenji. Lin snaps shortly after and Kenji, still in Mai's body, races into the woods. After John and Bou-san find Kenji, Naru tells him his father is waiting for him in heaven and asks him where he is. Kenji shows him the place he'd hid and died in and releases Mai, who sees Kenji's tragic death in a dream.

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.