Jae-won decides to get a divorce, but she can’t give up the custody. However, Soon-young is most likely to take the custody because he spent more time with A-rin. To turn the table around, Jae-won frames Soon-young for leaking confidential documents. While doing so, Jae-won notices that she also has a critical weakness. Meanwhile, Teo continues to investigate and find out who tried to kill Baek Seung-kyu.