Sakura Mamiya is a high school student who can see spirits. Her seat in class is next to Rinne Rokudo, who for some reason, most people can see only sometimes. Sakura's friend is troubled by a series of bizarre phone calls. Sakura and Rinne investigate.

The people at school have a dream about being approached by a woman in a kimono in a strange world with a with a red ring, imploring them to make an offering to the instrument shelter.

Sakura gets an experimental candy which can render her unable to see spirits and immediately tries it out.