Mizusaki is a female PE teacher who loves her profession and is highly respected by her students and colleagues, her life seems to be very beautiful and stable, but suddenly out of nowhere the name of a fellow teacher with her nude photos appears on his phone. Unfortunately, he was an extremely perverted guy, and he made a suggestion that if she wanted to delete these pictures, she had to voluntarily agree to have sex with him in class. Because she wanted to keep her honor and current job, she also reluctantly accepted this very miserable offer.