Seven years into her marriage, Saki started working as an office cleaner. After her husband's business failed, Saki now lives off her part-time income. During these days, she gets to know Hajime, a new employee at the company who is in charge of cleaning. During their casual conversations every morning, they are drawn to each other, perhaps due to the loneliness and hardships they are feeling at home and work. And when those emotions overflow, a secret relationship just for the two of them begins... The cleaning lady and the young new employee are a perfect match for sex, and they start their day by coming to work early in the morning and having sex. In the empty office, in the bathroom, in the changing room... a secret affair blazes up. "Is an old lady like me okay?" A married, part-time cleaner goes wild with the intense thrusts of a young man with extraordinary stamina!!!