To save his son's life from a rare disease, Shingo's wife, Satoe, enters into a one-year contract to become a sex toy for the wealthy Yoshimoto. Despite doing it for his son, Shingo laments his own powerlessness in selling his beloved wife. Every week, videos sent by Yoshimoto record the entire process of Satoe being trained, and although she initially puts on a strong front, Satoe gradually surrenders her heart to Yoshimoto…
