"Gu Family Book" Yoon Se Ah holds her son Lee Seung Gi tightly and cries uncontrollably.

June 11, the 20th episode of the MBC drama "Gu Family Book" featured Ja Hong Myung (Yoon Seo Hwa/Yoon Se Ah) telling her biological son Choi Kang Chi (Lee Seung Gi), "I'm sorry" and begging him for forgiveness.

Pil Mok (Song Young Kyu) stirs up a mutiny against Ja Hong Myung who is trying to kill Jo Kwan Woong (Lee Sung Jae) with all of her might. Pil Mok tries to get rid of Ja Hong Myung with an excuse that he is sending her back to Japan.

Ja Hong Myung is in danger of losing her life when Choi Kang Chi and fellows save her from the situation. While Choi Kang Chi saves Ja Hong Myung, Dam Yeo Wool (Bae Suzy) and Gon (Sung Joon) fight against the people surrounding Ja Hong Myung.

Ja Hong Myung barely survives and murmurs, "There is somebody I must kill. I need to kill him, the one who killed off our family and split up me and your father. I need to kill the person that made you like this." She was clearly blinded by her hatred towards Jo Kwang Woong.

Choi Kang Chi yells, "You only see the person you want to kill but not me? I am your son." Ja Hong Myung replies, "I am sorry. I am so sorry that I am your mother." She holds Choi Kang Chi tightly and begins to cry uncontrollably.