Stepmom, Erina who were three years ago by father, and came over. But mother, the Kenta of the son, Takashi and three strange livings began after the death father. And the situation takes a sudden turn because Kenta witnessed masturbation of Erina. In the Koto which Kenta attacked, the greed of Takashi blows up; the Stepmom in the outlet of carnal desires.
