When Jun's father remarried, Rika became Jun's new mother. Jun, going through puberty, was extremely interested in Rika's enormous breasts that seemed to spill out at any moment. He would peek into the bath and let his thoughts run wild about actions with Rika. As usual, when Jun was peeking, Rika noticed him. "Can you promise not to peek anymore?" Rika gently admonished Jun, but the sweet scent of her shampoo stimulated his sexual desire, causing him to forget that she was his stepmother and attack her.
