To save his son's life from a rare disease, Shunsuke's wife Yuu enters into a contract to become a sex slave for the wealthy Tetsuka for one year. Despite doing it for his son, Shunsuke laments his own helplessness in selling his beloved wife. Every week, videos sent by Tetsuka record Yuu being trained from start to finish. Initially defiant, Yuu gradually surrenders her heart to Tetsuka…
