Choesuneul Dahae Huhoehaseyo

Olivia Madeleine, the illegitimate daughter of a duke, sees marriage to Crown Prince Leoford Franz as her only chance to escape her cold-hearted family. That hope falters when she discovers he has been involved with another debutante, a betrayal that prompts her to seek a way out of their betrothal. To secure her freedom, Olivia makes a bargain with Edwin Lowell Vikander, the ruthless, battle-hardened Grand Duke of the North. As their dangerous relationship begins, she intends to leave Leoford with a gift that will make him regret losing her: a heart turned bitter by vengeance.