Tomoharu Natsume was a normal boy - except for the fact that one of his friends is a ghost, Misao Minakami. Then one day an older girl named Shuri Kurosaki appears at his house with a strange trunk, and Tomo's life is turned upside down.

[Source: Anime News Network]

Following the first season, Tomoharu is now faced with a dilemma: if he doesn't form a contract with an "akuma," he risks losing his dear friend Takatsuki. However, doing so would compromise his own existence as it would result in him and his ghost friend Misao becoming an Asura Cryin'—mankind's biggest threat, according to their school's presidents. To make the decision even harder, Tomoharu and Misao have recovered some of their past memories—memories of a world that they didn't even know existed.