Five years ago, Seraphina Blackwood ran from her marriage and destiny as Luna to the most powerful Lycan King alive, choosing to be free over an arranged marriage. But when she saves a wounded Alpha from a rogue attack, his gratitude came in the form of a prison. Marcus Sullivan marries her out of duty, believing she's nothing more than a poor orphan—never knowing she's the daughter of the most feared Yakuza-werewolf family in the supernatural underworld. For five years, Seraphina mistakes his cold obligation for love, playing the perfect wife while her true mate's bond is left unanswered. But when Marcus's first love returns, a rare Omega who promises him the strong heir he believes Seraphina, as a "human," cannot provide, his betrayal shatters every illusion that Seraphine has portrayed about their relationship. Abandoned, humiliated, and left to face dangerous enemies alone, Seraphina finally calls upon the man she left at the altar five years ago. Kieran Nightshade, the Lycan King whose heart she broke, answers without hesitation. But reclaiming her birthright means exposing secrets that could destroy the supernatural world's balance of power. As Marcus realizes too late what he's lost, and enemies comes from every angle seeking to use Seraphina's true identity against her family's empire, she must choose between remaining anonymous and the dangerous power that comes with being Luna Queen to the most feared Alpha alive. Some regrets can never be undone. And some women are too powerful to be cast aside twice.