Aimi, a wife who lives with her husband, Hiroyuki, and her father-in-law, Toru. My husband hasn't had any interest in Aimi lately. It was Toru who dispelled such loneliness. Toru was a teacher when he was a student, and was the ideal man for Aimi. I lived with Toru and spent more time than my husband. And Aimi who knew her husband's affair further fluttered. She boldly shakes her obscene breasts, exposes her lustrous and soft skin, and instigates her father-in-law's sexual desire.