Haruki works as a teacher and lives happily with his wife and four daughters. His sexual energy is quite up to par for his age, and he has never denied his wife a night of lovemaking. One day he and his wife had a falling out and his wife went to her mother's house. Now he was alone with his daughters and his irrepressible lust. He tried to masturbate, but his daughters seemed ready to replace their mother who had left. Of course, he tried to follow the boundaries of propriety, but it was only a matter of time before his desire and lust overwhelmed him.