Tsumugi has decided to enter into a sexual contract with investor Nakae on the condition that her husband Yosuke, who got into the investment referral business, will clear the 50 million yen debt he owes her. "If I can just hold out for a month, I can live a happy life with Yosuke again..." However, at the time, Tsumugi could not have imagined what she would be like a month later. She would never have wanted the contract to end... She would lose herself in Nakae's dick and cum over and over again right in front of her husband...