Yoshiko is an educated mother who wants her beloved son Kenichi to follow an elite course in the future. She has had many tutors in the past, but none of them were good enough and she could not find anyone who met Yoshiko's standards. And today, a new tutor has arrived... The moment she opened the front door, Yoshiko felt a bolt of lightning run through her body. (Hmmm!! What a handsome young man, just my type!!) From that day on, Yoshiko's plan to seduce the tutor using her son's gifted education as an excuse begins...