A grandmother, son Fuufu and the Iwasakis whom three generations of the grandchild spend under one roof. Seemingly were the family who looked like an extremely common family, but, in fact, father stole into the bedroom of Chizuru who was real mother night after night, and developed Incest. And a wife, Satsuki witnesses the act that is not permitted of the So. The Satsuki which endured the mother complex of the husband stands up at last for many years after marrying.
