Kanako is about to get married to an older man. However, she has some worries. She had previously witnessed Atsushi, her husband's stepchild, masturbating with her underwear. Kanako went through the wedding without incident, but then Atsushi called her out, saying he wanted to take a photo of her in her wedding dress. Soon Atsushi began to behave in a way that was reminiscent of sexual harassment...