Kuraki Fuzuchi is a quiet young man possessing immense psychic powers and sword skills. He later meets Takeo Nanachi, a college student with similar latent abilities. The story begins with Nanachi traveling to a small mountain shrine for a festival that occurs only once every 49 years, aiming to purify his (now deceased) grandfather's sword. There, he meets Kuraki and subsequently stumbles upon Kuraki's initiation ritual as a Shaman. From that point on, their lives become inexplicably intertwined as they encounter various ghosts, spirits, demons, and other characters with supernatural powers, while the author also provides a parallel running story depicting their previous life. Included one-shot: Volume 7: Hidari no Kei