A young girl named Kiki (Fuka Koshiba) must leave her home for a year to begin training in witchcraft. She leaves on her broom, but first says goodbye to her friends and family. Kiki then begins her new life with her trusted cat Jiji.

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

"A world" - After graduating from a university, close friends Takashi Tsurug and Tomohiko Miwa begin work at a company which does brain research. One day, Tomohiko introduces Mayuko Tsuno as his girlfriend. Takashi is stunned. When he was a university student, Takashi saw Mayuko Tsuno every day on the train opposite from the one he rode. He became attracted to her back then. "B world" - When Takashi Tsurug wakes up, his girlfriend Mayuko Tsuno makes breakfast as usual at his apartment. His friend Tomohiko Miwa introduced him to Mayuko and they have lived happily as a couple. Everything seems to be going smoothly, but Takashi begins to have doubts. Tomohiko, who worked with him at the same company, disappears and he can't discern if his memory is real or imaginary.