Yukari was regarded as a serious and enthusiastic teacher, but behind the scenes she was also a lewd woman who enjoyed having affairs with her students. Recently, they had even engaged in sex on school grounds, and their affairs with her students were escalating day by day. But one day, their secret rendezvous was witnessed by another student. If it was discovered, it would all be over. Yukari begged him to keep quiet, but... Seeing her desperate expression, the student laughed and said, "Then let us have some fun too." She would pay the price for her immoral act with her body.