Kouhei Morioka, Black Sheep of a family of powerful psychics and spiritualists, has less spiritual energy than the average Muggle. In his job as photographer for an occult magazine he encounters Hazuki, a young girl trapped in a castle by a magical barrier (Kouhei is so lacking in spiritual energy that the barrier didn't notice him). After he promises to help her out of her confinement, she insists on giving him a "kiss," then bites him on the neck.