Han Gyeol finds out that her mother, Sun Young, committed suicide because her father, Sang Chul, was having an affair. After Han Gyeol learns her father has been cheating, she visits his father's mistress, Song Hwa, and shows her mother's suicide note to her. Meanwhile, Sang Chul is uncomfortable with Bok Nyu, so he goes to the employment agency to request to replace Bok Nyu with another housekeeper.

Bok Nyu tells Song Hwa that she knows that Jang Do Hyung is Seo Ji Hoon. Bok Nyu also asks Song Hwa to do as Jang Do Hyung asks and to be careful with him. Meanwhile, Sang Chul tries to stop Do Hyung from having a relationship with Bok Nyu. Song Hwa then tries to turn Sang Chul's interest in Do Hyung to her by telling him she was involved in Sang Chul's wife, Sun Young's death.

Na Young meets Bok Nyu and tells her that she doesn't like Bok Nyu and for her to not to be the mother to Sang Chul's children. Meanwhile, Sang Chul's children forget their mother Sun Young's birthday and wait for Bok Nyu to return. Na Young is disappointed when the children don't seem to care about her and her sister Sun Young. Na Young suddenly decides to get married, saying she will live her own life now.