You were the future heiress of a beautiful kingdom and Seungmin was the prince of the neighboring kingdom, who was also an ally, so you have known Seungmin since you were children.

Since the first time they met, they hate each other for their very different personalities. He hated you for being so cheerful and bright and you hated him for being so cold and boring.

Right now, they are both playing chess.

— "The horse doesn't move like that, silly"