Mika Kondo is a married woman secretly involved in an affair with her husband's subordinate while maintaining her composure at work. One day, their clandestine office rendezvous is witnessed by a coworker, and the incident quickly spreads as office gossip. Panicked and desperate to contain the situation, Mika is forced to make difficult choices to protect herself, all while being acutely aware of prying eyes around her. Amid the mounting tension of keeping her affair hidden and navigating complex workplace relationships, Mika's inner turmoil and emotional instability begin to surface.