On her usual commute, Nao walks to school. But the bus she boards carries a strange, unsettling atmosphere, filled with a group of depraved men. They stare at her with lewd eyes, mercilessly tear her clothes, and one after another, their hands defile her body driven by raw desire. A relentless hell of humiliation engulfs her. As the days pass with no escape from repeated assault, a part of her mind begins to feel pleasure.