In this adult stepmother-and-stepson role-play, Saki marries her boss, Kenzo, after he agrees to let her continue working. Her life is fulfilling, but she still feels an emotional distance between herself and Kenzo’s adult son, Tsuyoshi. One day, Tsuyoshi happens to be on the same train and sees Saki being molested. He has secretly longed for his stepmother, who is close to his age, and the sight of her lewd side—so different from her usual demure demeanor—awakens his desire. A few days later, he quietly creeps up behind Saki as she walks home...