Actor Yoo Yeon Suk (29) reluctantly yet willingly ended his first love. After watching Sung Na Jung, played by Ko Ah Ra (23), he realized that there is an exception to unconditional love. Chil Bong Yi, played by Yoo Yeon Suk, then left for the United States, clearing up his one sided love for Sung Na Jung for six years.

On the cable channel tvN's Friday Saturday drama "Reply 1994" which aired on December 27, 2013, Chil Bong Yi tried to woe the hearts of Sung Na Jung. Chil Yong Yi felt that his love for Sung Na Jung has gotten deeper when Sung Na Jung was taking care of Chil Bong Yi hospitalized for hurting his arm. However, Sung Na Jung's heart was already directed for Sseu Re Ki.

Chil Bong Yi to Sung Na Jung said, "Can you come early tomorrow morning? I need to receive an MRI scan but I do not want to go alone," and added, "When I get out of the hospital next week, you need to go watch a movie with me. I have not watched 'Love Letter' yet. We should go watch 'Love Letter' and go to that crab restaurant that we were talking about earlier."

Chil Bong Yi, however, after realizing that Sung Na Jung is not into him as much as he is, left for the United States, lying to her that he is well.