Maki Tomoda leads a busy life as a working married woman, but one day she is assigned to go on a business trip with her dependable superior, Ozawa. Their work meeting goes smoothly, and they celebrate with drinks afterward. That night, overwhelmed by the sense of accomplishment and alcohol, Maki loses consciousness. Watching her vulnerable state, Ozawa begins touching her body, indulging in intense, passionate foreplay. Unable to resist, Maki gradually gives in, reaching for Ozawa's lips herself. Enveloped in his warmth, she wraps her legs around his back as their forbidden intimacy deepens. Even after returning from the trip, they continue meeting in secret, their illicit bond growing stronger each day.