Tsumugi decides to sign a sexual treatment contract with investor Nakae on the condition that her husband, Yosuke, who started an investment introduction business, owes 50 million yen. "If I endure it for a month, I can live a happy life with Yosuke again..." However, at this moment, Tsumugi could not imagine what he would look like after a another month. I can't believe I don't want the contract to end... I can't believe I'm drowning in Nakae's cock in front of my husband.