In the drama, actress Go Ah Rah became Yoo Yeon Suk's protector.
On the 20th episode of tvN Friday/Thursday "Reply 1994" broadcast on December 27th, Chil Bong (played by Yoo Yeon Suk) went to the office of Sung Na Jung (played by Go Ah Rah).
On this day, Chil Bong said to Sung Na Jung, "I know you're busy but let's just see each other for 10 seconds" and gave her a cake out of nowhere.
Afterwards, Sung Na Jung receives a phone call that Chil Bong is hurt and in the hospital with an injury on his right shoulder and is worried because Chil Bong needs to leave next week.
Na Jung kept Chil Bong's side and hid secretly from the journalists as she was eating and sleeping with Chil Bong in his hospital room.
