Schoolgirl, Kokomi to be a writer of children's story. Takashi of her classmate plans her Confinement for fun, and use her as an outlet of the Sei with a senior. A case gradually grows big, and Takashi who begins to be confused implore Matsuzawa of the hooligan it. The sad Schoolgirl which be imprisoned in the hiding place, and tastes hell on earth…There is not the art saved in Sei Slave of the prescribing too much medicine….
