Forgetting you is the Hardest Part

Choi Jinri is a 21 year old who STILL haven't moved on from her first love in high school. Even if she really wants to, she couldn't. It was too hard for her.
When she turns 22, she promised herself to have a new life. She was accepted to a job she really wanted. Now all she has to do is forget about him... about them...
But what if she couldn't? What if when the time finally comes that she has completely moved on, everything seems to go the wrong way, not the way she thought it would be?