In movies, stories, dramas or anywhere , the always doesn’t have a happy ending. But now, we get to witness a change for once. Meet Krystal Jung, the ex fiancé of Kai who left him 5 years ago. She comes back to get back together with him, only to find out that he hates her to the core, not only that, he is now engaged to an innocently beautiful woman.

Characters:

Krystal Jung.

Kai's ex fiance who had her own reasons to leave him. She comes back to find him engaged, forcing her to turn into an unpleasant woman in front of his friends and his new fiance, or a , as we call it. Everyone despises her because of her attitude. She isn’t really a but she has to show that side to get his attention. Will Kai’s friends, and himself, see through her façade? Will she get him back?

Kim Jongin, Kai.

The guy who waited for Krystal in the rain 5 years ago, but she never showed up. Now, she's back and he's determined to make her life miserable. He  hates her to the core and isn't afraid to show it. He found love again after his heartbreak, to a woman breathtakingly beautiful. He's convinced that she's the one. Or so he thought.  Will this guy listen to his mind or follow his heart?

Son Naeun.

The new fiance. She has an innocent face and smile, making all of Kai's friends love her. But with the arrival of his ex fiance, will her true colours finally show?