We all had a good amount of share mistakes, some had it a little bit less while some had it much worse. But no worries after all were human. We are unique in our own way. Annie Wei, a daughter that any parents would probably be glad to have. She's a beauty that can get anyone's attention as soon as she walk in that room. Daughter of a real estate magnate and a Hospital director she got her future all plan out. But one mistake had sure changed everything for her.

Lee Donghae, everybody loves him. A young and approachable Professor of Seoul National University. A guy that pretty much have everything plan for him. A understanding girlfriend that loves him, younger sister that got his back. And parents that support him. 

She's a student, age of 20 while he recently turn 28. Different level, by social standard and at the same time family business as well. 

She's living the glamorous life, being photographed once in a while. While he's just a regular Professor. Enjoying his casual saturday date with either his girlfriend or family gathering. 

One mistake, had ruined everything for both of them.

It was mostly her.

He didn't had any clue.

while she had suffered alone.

She had disappeared after.