Saeko regrets having married her husband Yasuo, who is always nervous and checking his wife's mood. Saeko takes the lead in their sex life, and her frightened husband's penis is useless, so Saeko relieves her sexual frustration by having sex with other men. Kazuyuki, the nephew, worries about the Higuchi couple. He often visits the Higuchi household and acts as a go-between for the two, but... One day, feeling sorry for Yasuo, Kazuyuki advises Saeko to straighten out her lifestyle, but Saeko makes a surprising suggestion...