Synopsis:

Students in the distinguished family Seren woman school are looked at, there was a man of alone to which a suspicious smile was expressed. Seren woman school, the Miss of power and means who grasps politics and the economy of every country in the world commutes, super-young lady school. A man, "A certain grudge" was held in such Seren woman school.

He on a certain day, is suddenly handed over the "Stop gun of time" by the person of mystery. Though at the start it did not believe, it sneaks into Seren woman school when it is understood that the power is a real thing, certain sisters are made a target.