To be a good wife and mother. Sumie has hidden the existence of her obscene desires swirling inside her. However, when she comes to visit her son’s friend, Yamashita sees her toy collection hidden in the back of the closet. Knowing that Sumie, who was in love with her, had a secret side to her, she realized that she could not hide her lascivious nature from the flirting Yamashita. Overcoming the age difference and morals, the desires of the two grow.