A year ago, Aya married a man with a child from a previous marriage. As she got used to her new family and began to build a happy home life, Aya gradually began to appear in front of her family in defenseless clothes. For her teenage son, the sight of Aya with her voluptuous breasts exposed was too stimulating. One day, while she was feeling frustrated, Aya and her son ended up spending the night alone together due to her husband's business trip.