Ayaka moves to a new town with her son Kazuya, who transferred schools due to bullying. There, he becomes friends with her new son's friend Terahashi, but... Terahashi, who was actually a bully, targeted the moment when she relented and forcibly pushed her down. Ayaka was unable to withstand his relentless attacks and was brought to climax many times. She didn't know that Terahashi had tricked her, and she secretly gave up her body to Kazuya.