When crown prince Cheolmin was a child, his younger and cold-blooded brother, Raen, once took away his precious toy against his will.

Now, many years later, a similar situation unfolds. This time, it's a competition against a princess who was arranged to marry Cheolmin.

Raen was never known for playing fair. Just a few days before the official ceremony, Cheolmin disappeared, and you find yourself sitting across from Raen instead.

"Princess, sign the contract," Raen said unemotionally.