While taking care of his father in the hospital, Park Ha Sun decides to forget about Jin Goo.

March 25, the 15th episode of the KBS drama "Advertisement Genius Lee Tae Baek" featured Baek Ji Yoon (Park Ha Sun) discovering that her father President Baek (Jang Yong) has a disease while she takes care of him at the hospital. President Baek had fainted while arguing with Baek Ji Yoon, and when she realizes at the hospital that he is very ill, she decides to give up on her love and career.

Baek Ji Yoon had been disobeying her father's orders to take over BK Advertisement Company and marry Eddie Kang (Jo Hyun Jae). Baek Ji Yoon began working at a different advertisement company as well as falling in love with Lee Tae Baek (Jin Goo). Even though she had been so headstrong about her desires in life, Baek Ji Yoon decides to do as her father wishes when she finds out that he does not have much time to live.

Baek Ji Yoon holds his father's hand in the hospital and says, "Father, I'm so sorry" and begins to cry. When President Baek wakes up, Baek Ji Yoon tells him, "I'll start working at BK Ad tomorrow. And I'll begin preparing for the wedding with Eddie Kang."

Soon after, Baek Ji Yoon meets Lee Tae Baek. She tells him, "I decided to work at BK Ad. I think I won't be able to see you anymore. I'll be cheering for you from far away. Take care." Lee Tae Baek finds himself unable to hold her back from leaving. When they are both alone, they begin to cry the tears they've been holding in.