Tsubaki, a high school student, on her way home from her part-time job thought she was being followed by a suspicious man, but the man calls her by her name she hadn't even told him... Could he be a stalker!? Too scary...! She runs away in a hurry, but that night... That same man appears in front on her in her bed! Tsubaki wants to run away, but she can't move her body as if it was in a sleep paralysis. That man, Miyabi, calls himself a "ghost" and does whatever he pleases with Tsubaki's body, which she can't resist. From that day on, she was possessed by the spirit of sex, Miyabi, and was attacked day and night.
One day on the train, another day at her school... eventually, Tsubaki's feelings change as she starts living with Miyabi.