In order to save the life of her son, who has an incurable disease, Takeshi's wife, Ena, signs a contract to become a wealthy man named Shibata's urinal for one year. - Takeshi laments his helplessness in selling his beloved wife, even though it was for the sake of his son. - The videos Shibata sends us every week record the entire process of Ena being trained, and even though Ena shows a strong attitude at first, her heart gradually becomes Shibata's.