Lee Dasom is just a girl who has a normal life, like everybody else. At first. She is indeed happy with her life that has never been in tragic especially when she has finally got proposed to marry with her first, current boyfriend named as Kim Jongin. She thinks he will be the one that make her life more brighter once they are married. 

Until one day, during weekend, she visits him to his home to make a surprise since it was his birthday. But it turns out, the guy is secretly dating with someone else as she sees he is sleeping with a girl in his room. Who wouldn't be pissed off and sad, right?

So, she makes a decision to move far away from Seoul to China.

That is why Dasom is being a cold-heart person to any guys that she meet.

Until she coincidentally bumped into a guy named Byun Baekhyun.