One day, their smooth married life comes crashing down. Her husband, who runs a restaurant, is betrayed by her friend's moneylender and is forced into bankruptcy with a large amount of debt. Yumi secretly meets a moneylender without telling her husband. "If you want to help her husband, be my woman only on weekends!" Yumi decided to dedicate her body to her heart, as long as she could endure herself. From that day on, a humiliating weekend began as a substitute meat urinal that didn't end until she got pregnant.