Aki is a mother who lives with her husband and son Manabu. Her husband is a strict person, and with Manabu's exams coming up, the atmosphere in the home is tense. One day, her husband discovers an adult video in Manabu's room. At the same time, the tutor tells her that Manabu's grades are declining, and the mother learns of her son's troubles... Recommended for those who want to receive gentle sex education using Aki Sasaki's beautiful body!