In the twentieth year of King Caldwell the First's iron reign, the Kingdom of Gascone enforces a brutal law: all cursed ones—individuals wielding magic and impossible power—face execution at Gaulane, the Imperial Capitol. The kingdom fears the prophecy of the Demon King, whose rise threatens to ignite a devastating war across all lands. Shia Hyanessa Aifendel carries her own curse in silence, living as a nomad beyond the Capitol's reach. When tragedy claims her family at the hands of a cursed one, she seeks vengeance. Her search leads her to Langrion Zephiry Romualdi, the formidable Imperial Prince and suspected fulfillment of the Demon King prophecy—possibly her family's killer. In a desperate gambit, Shia agrees to become his pretend-betrothed, infiltrating the Imperial Palace to uncover the truth. Navigating treacherous court politics, the ruthless battle for succession, and the crusade to free cursed ones from persecution, Shia races to solve her family's mystery while resisting her growing feelings for the prince. As destiny closes in on them both, can she achieve her vengeance, expose the throne's secrets, and survive the love threatening to entangle her with the would-be Demon King?