Taehyung is a 23 years old boy who's mother was murdered. He knows who his mother murderer is, but the police didn't find any viable proof that that man killed his mother, so the case of Taehyung's mother murder was never closed.

Thirsty for revenge, he kidnaps one of that man's daughters, Myung Hee. But he never thought of hurting her in any way, he just wanted to make that man suffer and maybe, somehow, obtain from him some kind of proof that he killed his mother in exchange of his daughter.

But Taehyung's plans don't go as he expected. Spending time with Myung Hee changes his heart upon the so much wanted revenge. But when he is finally ready to let go of it, his world is turned upside down again.