Hanbin, a prince, is forced to marry another prince, Junhoe, in a bargain to pay for his father's crime. Still longing for love, he grudgingly accepts; on the day of the ball celebrating his approaching wedding, he meets a stranger - Jiwon, one of his servants - that makes him feel like he has never felt before and Hanbin falls in love with him. But love always comes at a price. Hanbin, now struggling with the choice of love or loyalty, has a week before the wedding to sort out his feelings and to finally aim for what he wants in life, before he loses it forever.