Grace, a girl who lost her parents and had her very family stolen away. For thirteen long years, the only thing she has harbored in her heart is revenge. And then there is Ares, a man who lost everything to the same enemy.

For the sake of vengeance, Grace proposes a fake relationship, and the two enter into a cold contract.

However, the feelings sprouting within the flames of revenge gradually burn into love, and they begin to fear that this affection will become an obstacle to their plans…

Caught between revenge and love as they race toward the end, what choice will they make?