Manami Oura, a principled new employee, grows resentful toward her department chief who obsessively reprimands male coworkers for minor mistakes. One day, she's approached by another male colleague who propositions her for a sexual encounter at the office. Surprised but unable to resist the temptation, she ends up giving him a blowjob. However, this turns out to be a trap orchestrated by the chief. He uses footage shot on his smartphone of the affair as blackmail material, cornering Manami. The story unfolds with the chief's relentless pressure and Manami's inner turmoil.