To save the life of his intractable son, Shinji's wife, Rei, signs a contract to become a meat urinal for a wealthy man named Gento for a year. Shinji laments his helplessness in selling his beloved wife, albeit for his son. In the video sent from Gento every week, the appearance of Zero being trained is recorded from beginning to end, and Zero, who was showing a bullish posture at first, gradually becomes Gento's thing to the heart. A year later, the operation was successful, and Aino family seemed to have returned to a peaceful life.