Ayaka who has spent most of her life alone with her husband, who does not come home on business trips all year round.Because of that, her son Shinsuke tends to be spoiled by her, and she worries about his future...At that time, I see Shinsuke indulging in masturbation.As her mother, Ayaka will teach her about sex, but Shinsuke, who has become conscious of her mother as a woman, cannot stand it and pushes her down.He laments that she has done something irreparable, but since that day, Shinsuke has continued to press him to embrace Ayaka at every opportunity...