After starting his first job and living alone, Tatsuya found himself overwhelmed by work, leaving his apartment increasingly messy. Concerned, his mother asked her friend Maki, who ran a housekeeping service, to clean the place. Tatsuya had secretly admired Maki since childhood, and seeing her again made his heart race—though he tried to hide his feelings. As Maki moved about the apartment, her carefree demeanor stirred something deep within him. Physically and emotionally matured, Tatsuya lost control, surrendering to pleasure he hadn't felt in years. Yet Maki resolved that this affair must end here. Understanding her decision, Tatsuya accepted it, and their relationship quietly evolved into something new.