In order to save the life of her son who has an incurable disease, Hibiki, Hitoshi's wife, signs a contract to become a wealthy man named Hosokawa's urinal for one year. Hitoshi laments his helplessness in selling his beloved wife, even though it was for the sake of his son. The video that Hosokawa sends every week records the whole process of Hibiki being trained, and even though Hibiki was showing a strong attitude at first, her heart gradually became Hosokawa's.