A middle-aged couple of relatives who take care of a daughter who came out to Tokyo to go on to school, an uncle who awakens a desire for a young woman entering the home, and when she has sex with her wife, the daughter gets excited, masturbates, and frustrated. The uncle who noticed hides in his wife and aims at the daughter and enjoys the plump young body, and the wife who noticed it does not forgive the daughter who likes etch and throws it into a young man.