A car stops at a deserted old house in the countryside. A group of men with tough faces emerge from inside. They roughly take an exhausted schoolgirl out of the trunk and drag her into the storehouse. After a while, the schoolgirl wakes up and cries, not understanding what is happening, but she is tied up by the men and cannot move, so they rape her. But the real hell is yet to come. The next day, they begin relentlessly training her anus, and her reason gradually crumbles...