Yuu began working at a factory to support her family after her husband lost his job. Her daily commute relied on a local bus line that took her through an industrial area, where she found herself surrounded by men in work uniforms, making her feel increasingly uneasy. One day, she becomes a victim of molestation at the factory. A coworker named Kimura becomes the prime suspect, and as suspicion grows, so do his advances. His aggressive, possessive behavior begins to unsettle her emotionally. While struggling to survive the harsh conditions, Yuu is forced to make difficult choices to protect herself.