Grace is a girl who lost her parents and even had her family taken from her.
For thirteen years, the only thing she carried in her heart was revenge.
And there is Ares, who also lost everything to the same enemy.

For the sake of revenge, Grace proposes a fake dating relationship to him,
and the two enter into a cold, calculated contract.

However, emotions that sprout amid the flames of revenge gradually grow into love,
and they begin to fear that these feelings might stand in the way of their vengeance.

Between revenge and love,
as the two race toward the end, what choice will they ultimately make?