On their way home from school, a group of high school girls urinate in a deserted side street one after another. However, the whole thing is being filmed, and the landlord threatens them. "This is my land. You peed, didn't you? I recorded it on tape. If you do what I say, I'll erase the tape. What do you want to do?" The female students are unable to resist. However, their crotches are getting wet with a fluid that isn't pee...