Sim Jaehyun

Yang Wonyoung, 21, is the beautiful, sharp-tongued daughter of a powerful mafia chairman, promised to marry Park Sunghoon, the eldest son of her family's sworn enemy, to end their decades-long feud. Sunghoon is composed, protective and genuinely determined to make their marriage work, treating Wonyoung with a kindness she never expected from a man she was forced to marry. His younger half-brother, Sim Jaehyun, 21, is everything he isn't: arrogant, reckless, infuriatingly charming and notorious for getting whatever he wants. Already engaged to a woman chosen by his family, Jaehyun has his own future decided for him, one he has never particularly cared to question—until Wonyoung.Their relationship begins with mutual hostility, vicious arguments and an unspoken determination to never let the other win.Jaehyun loves provoking her, and Wonyoung makes it her personal mission to remind him that his charm means absolutely nothing to her. But beneath their hatred lies a dangerous attraction neither can afford to acknowledge.Wonyoung is the woman his brother is going to marry, and Jaehyun is the man she should despise above everyone else. Every family dinner, every stolen glance across a crowded room and every argument that lasts a little too long becomes another line they know they shouldn't cross.Jaehyun begins to hate the way Sunghoon looks at her,while Wonyoung despises how effortlessly Jaehyun can make her Seoyeon lose her composure.They know exactly what is at stake: their engagements, their families, their reputations and the trust of the one man who has never given them a reason to betray him. Yet the more they try to distance themselves, the more their lives seem to pull them together. Jaehyun is engaged to another woman, Wonyoung is promised to his brother, and neither has the right to want what belongs to the other. In a world where loyalty is everything and betrayal can destroy entire families..