The father remarried to a younger woman named Sei, and his son Kousuke gained a young stepmother. Sei was beautiful, but Kousuke struggled to accept her as his stepmother. One day, Kousuke saw Sei masturbating in the bathroom and couldn't control his desires, embracing her. From that day forward, the relationship between the stepmother and stepson crumbled, and Kousuke decided to live alone. The move was scheduled for 14 days later—but during those remaining few days, Sei and Kousuke deepened their forbidden relationship...
