Tsumugi decides to enter into a sex treatment contract with the investor Nakae on the condition that she borrows 50 million yen from her husband, Yosuke, who started out in the investment referral business. ``If you put up with it for a month, you can live a happy life with Yosuke again...'' However, at this time, Tsumugi could not imagine what she would be like a month from now. She never expected her contract to end