Ichika, the PTA chairman, encounters problem children who disturb the morals of the school. She lashes out at them, but she turns out to be a target for their lust. After that, she happens to come across a scene where they take a schoolgirl into the bathroom and play a prank on her. In order to protect the female student, Ichika was supposed to treat her sexual desires instead, but an unexpected trap was set there.
