Moon Subin's past relationship keeps haunting her even after years. She has never been in any love relationship with anyone after she broke up with him.

She didn't fully blame him for leaving her. She was partly responsible for making it happened and always regrets about it. She's afraid either that she might get hurt or she will hurt somebody else just like before.

It becomes her trauma.

Whenever there is someone who want to approach her, she refuses them all.

But fate always playing with people's life. What will happen if this two souls meet again?

Would there be a happy ending?

Or, would there be a new story?

"I guess bad girl who plays other people hearts deserves all these. I got my karma." Subin smiles but it shows her pain instead of happiness.