"Kill him, or crave him. There is no middle ground." A Blood-Treaty signed in ink. A marriage finished in silver. Hwang Hyunjin is the Alpha heir of the North-a man of iron, scars, and a hunger for vengeance. He was born to hunt the undead, not to bed them. Lee Felix is the Last Crimson Prince-a nightmare in silk with ruby eyes and a heart made of ice. He didn't come for a crown; he came to watch the Alpha's legacy bleed. One Bed. Two Enemies. A thousand ways to die. The vows are fake. The hatred is real. The hunger is lethal.

Twenty-year-old Felix has lived a life of misery as a servant to his greedy relatives. When his uncle's gambling debts spiral out of control, Felix is traded as currency to settle the score. Hwang Hyunjin is the city's most ruthless mafia boss. He doesn't want the money; he wants the fragile, silver-haired Omega hidden in the attic. Trapped in a "gilded cage" of luxury and violence, Felix must endure Hyunjin's dark obsession with breaking him. In a world where mercy is a myth, Felix's only hope is to become the one thing the boss never expected: his greatest weakness. ________