Seitamakoto school of the divinity system which Protagonist commute to, school which pours power into holy teaching and volunteer as well as study.

In the school, a certain female teacher comes to get the abnormal action, it becomes a problem. And just at that time of starting for the school side to straighten out that problem.... the female teacher disappears suddenly.

To make the scoop a thing marking down there having begun to move, two of newspaper club that immediately before getting crushing. It was Protagonist Mibu Mutsuki and twin younger sister Hazuki. [The scoop is made a thing here and the member is gathered.] In the shape pulled to Hazuki full of motivation, mutsuki will join the survey together.

While examining the personal safety of the disappearing female teacher, a mysterious matter is understood. However to such two, hand of a demon was stealing near...