Miwa and Yusuke are a happy couple who got married within the company. They bought their dream house with a loan and lived a happy life. One day, Miwa happens to meet her former boss, Ota. Yusuke owes him for teaching him how to do his job, and Miwa owes him for saving her from a stalker. The couple discuss how to repay Ota, but after suffering through hardships, he is no longer the same Ota he once was. Ota takes advantage of Miwa's kind and sympathetic nature, and eventually...