A married woman who obtained a backup key, and her solitary apartment where she had sex with a male student until graduation. Mari Ueto JUQ-299

One day, Nakano, a job-seeking single man, meets Mari, a professional housewife, at a nearby izakaya (Japanese pub) and falls in love at first sight. They later meet again by chance, exchange contact information, and drink together at Nakano's house. Their relationship deepens over time. Nakano gives Mari his keys, and when her husband goes to work, Mari comes to Nakano's house with shopping bags. To combat their loneliness, they spend a lot of time together, but their relationship changes after Nakano finds a job…