A schoolgirl manages to escape from a man's room, but her peaceful days don't last long. One day, the men reappear, holding photos of the rape scene, and blackmail her into submission for repeated sexual assault. In an empty classroom, she is forced to strip naked and perform humiliating exercises in her underwear. Her mind gradually breaks down as she endures increasingly degrading demands, slowly transforming into a mere vessel accepting pleasure. After countless brutal assaults, her sense of self vanishes completely, losing even the strength to protect herself. Her appearance shifts entirely from that of an innocent girl into a fully corrupted, depraved bitch.