One day, Satomi, a new teacher, visits the home of Hiroshi, a student in her class who refuses to come to school. The school had given up on Hiroshi because he had previously caused problems at school, but he came to make a home visit despite the objections of his fellow teachers. However, as soon as Hiroshi welcomes Satomi, he gives her tea laced with sleeping pills and pins her down. In the middle of the act, Satomi's father Koji, a yakuza, and his thug subordinate appear and gang-rape Satomi...