Although Asami's relationship with her husband was good, she couldn't be satisfied due to his decreased sex drive and felt frustrated. One day, she became close with the neighborhood association president, Yamazaki, and started an affair. Sex with Yamazaki brought pleasures that her husband couldn't provide. Whenever her husband and son went to work, Asami would welcome Yamazaki into their home. However, her affair was found out by her son. Yamazaki stopped coming over, and the affair ended. She tried to convince herself that this was for the best, but Asami's body, now addicted to lust, had reached its limit. Then, she accidentally saw her son's penis…
