Yumi, who works as a dorm mother at the facility, had a new resident named Kazuma. He seemed like a good kid at first, but Kazuma had another side to him. Pretending to be troubled, he exploited Yumi's weakness and raped her. Then, involving two roommates, they committed a 4-person gang rape while her husband was sleeping nearby. Escalating delinquents left Yumi helpless as she was reduced to being a sex-processing dorm mother.
