Ayu Sakurai is a female teacher who is the school's Madonna. One day, a transfer student arrives in her class. It's actually her long-lost brother. The brother, at the mercy of a bully, secretly films Ayu masturbating and then rapes her. Using these images, the students threaten Ayu, forcing Ayu to do obscene acts. It was all a trap set by a fellow teacher. Rape, incest, 20 consecutive creampies!