'Reply 1994' Yoo Yeon Suk promised their future together to To Ko Ah Ra.

On the episode of the cable channel tvN's Friday Saturday drama "Reply 1994," which aired on December 6, 2013, Chil Bong Yi, played by Yoo Yeon Suk, invited Sung Na Jung, played by Ko Ah Ra, to a bar on his last night at Seoul, and drank with her.

While drinking, Chil Bong Yi asked, "Are you still not comfortable around me?" suggesting the time when he confessed his love to her. Sung Na Jung replied, "I am not comfortable around you, but it is not that I do not like you," and suggested that she feels sorry about the situation. Lather when Sung Na Jung wished Chil Bong Yi the best in Japan, Chil Bong Yi said, "I am ruined because I am too nice. I am so nice that I did not even give it a shot when there was somebody I really really liked," beating himself up and kept taking shots of soju. Later Chil Bong Yi still showed his caring side for Sung Na Jung, when he gave Sung Na Jung a hat so that she did not have to walk back home in the snow. Sung Na Jung said the last goodbye to Chil Bong Yi, and the two shook their hands together.

Chil Bong Yi said, "Perhaps, later, I do not know when it would be. But in a few years if we meet again, and if you still do not have anybody by your side, let's go out."

Sung Na Jung, unable to say a word, let her hands go from his.