In the class where Rin, a teacher, is the homeroom teacher, there was a student, Takao, who had been absent from school for nearly a year. Feeling that the situation he was in was her responsibility, Rin, accompanied by her colleague and husband, the teacher Keiichi, headed for a home visit to Takao. However, Takao's home turned out to be a den of extremely wicked yakuza. Attracted by her beauty, Rin was forced into a situation by Takao and his family, and in front of Keiichi, she was subjected to prolonged intense sexual acts...
