In order to save the life of her son, who has an incurable disease, Shunsuke's wife, Yu, signs a contract to become a wealthy man named Tezuka's urinal for one year. Shunsuke laments his helplessness in selling his beloved wife, even though it was for the sake of his son. The video sent by Tezuka every week records the whole process of Yuu being trained, and Yuu, who initially showed a bullish attitude, gradually started to become Tezuka's thing.