Facing the harsh reality that his only son's surgery would require an enormous sum of money, a desperate father decides to seek help from a wealthy benefactor. Hoping the rich man will agree to cover the full cost of the operation, he goes to meet him in person. However, the condition presented by the wealthy man is shocking: "I want to hire Yui as a sex slave and cumdump for one year." Though stunned and conflicted, the father has no choice but to accept the degrading offer in order to save his son's life.