The lives of a young cop, a sanitation worker and a brooding pharmacist violently intersect on a bus that's hijacked by a suicidal political flunky, then cross paths again months later.

Years after moving to Tokyo with her parents, Hinako returns to her hometown in rural Shikoku. She soon learns that her childhood friend, Sayori, died several years ago and that Sayori's mother, who used to perform seances and exorcisms, has gone almost insane with grief. After seeing Sayori's ghost several times during the night, Hinako consults with some local experts on the paranormal and discovers that Sayori's mother has something planned for her daughter...

A young boy with a troubled home life becomes "chosen," and he stumbles into the middle of a great war of yōkai (a class of mythological creatures), where he meets a group of friendly yōkai who become his companions through his journey. Now he must fight to protect his friends and free the world of the yōkai from oppression.