Kang Hae Ra finds out through Kim Tae On the secret Cha Min Joon has been keeping from her. Feeling betrayed, Hae Ra distances herself from him as she tries to collect her thoughts. Meanwhile, Ku Eun Hye and Kim Hyung Sung also discover that Min Joon and Do Yoon have been keeping surveillance on Hae Ra. They confront Do Yoon who shares his and Min Joon's past with them. Moved by his story, Eun Hye and Hyung Sung decide to help Do Yoon with his investigation. Meanwhile, realizing Ga On is not happy with his biological father, Hae Ra makes peace with Min Joon and asks him to help her get her son back.