Sumire Mizusaki is a new teacher who treats her students with a cold attitude because she doesn't want to be criticized just because she's a woman. One day, she encountered an exhibitionist on her way home from school and couldn't stop her exhibitionist fantasies, so she decided to expose herself at school! She seeks shameful pleasure and exposes her lewd appearance not only inside the school but also outdoors. She finally gets completely naked in front of her student...