Yuria is known in the neighborhood for her intelligence, beauty, and good nature. However, she has a secret that she cannot tell anyone. She has become involved with her son. Unable to bear the loneliness while her husband is away on a business trip, she has been relying on her son for comfort... But when her husband's long-term business trip ends and the three of them start living together again, Yuria takes this opportunity to try to cut off her relationship with her son, but her son, who is in the midst of puberty, cannot control his sexual desire and comes on to her almost every day...