A group of three female college students take a summer resort job at a seaside guesthouse, hoping to combine work with a fun vacation and create lasting memories. However, hidden cameras are installed throughout the property, allowing the manager to monitor everything—slacking off, sneaking food, or any misbehavior. Ten Ayase, a shy and timid girl, becomes the target of blackmail. To protect her two friends, she's forced to secretly satisfy the sexual desires of a perverted older man. Amid an unsettling atmosphere, the story unfolds the harsh reality these three college girls face and the emotional turmoil they endure.