Eriko, a mother who treats her son as a child forever. One day, he quarrels with his son who came back at midnight at a drinking party. "I'm 20 years old! Don't treat me as a child forever!" Said his son, who shut himself up in the room. Eriko visits her son's room to apologize, but she inadvertently meets her during masturbation. And Eriko tells her son, "You can make up, but show me your mother's tits."
