After losing her husband in an accident, Natsuko raised her son Taichi all on her own. Her love for her late husband never faded, yet her physical desires grew stronger each day. One day, Natsuko began noticing her deceased husband's features in Taichi's face, and gradually found herself emotionally drawn to him. One night, she encountered Taichi naked in the changing room. Her heart pounded at the sight of him, and when she realized his cock looked just like her late husband's, forbidden feelings began to stir within her.