Gang-uk may have received a heart transplant from Ji-hwan. In my opinion, one of the factors proving they are destined for each other is that the transplant makes Gang-uk feel a bit uneasy or restless in the next situation, I really feel sorry for him because people around him are going to drag him down for silly and absurd reasons, that is a k-drama's trademark for ya deceit and duplicity.
Cheon Ha-ri's character is beyond annoying. She always wants to call off every single one of Yeo-ri's engagements. Ha-ri's character is just too weird🤔🤔