On their way home from school, girls urinate outdoors, one after another, on deserted forest roads and in the mountains. However, the whole thing is being filmed, and they are threatened by the landowner. "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...