To save her son's life from a terminal illness, Mio Kimijima's character makes a contract with wealthy businessman Tezuka, agreeing to become his sex slave and cumdump. The one-year agreement requires her to be trained and recorded weekly through videos sent by Tezuka. Her husband suffers intense guilt and helplessness over selling his wife, convincing himself it's for their son's sake, yet deep inside, love and sorrow for his wife tear him apart. This story profoundly explores family bonds, desire, and human weakness.