In the fairy world of Norfolk, where destiny wears crowns, Heeseung—the Prince of Hearts—rules the unseen realm of emotions. A manipulator by design and a healer by consequence, he is both the God of Broken Hearts and their quiet cure. Alongside him exist other incarnations of fate: the God of Chaos, the Fate of Tears, Greed, and Vengeance—each bound to Norfolk by ancient balance. When Prince Apollo of Valford announces a never-ending ball lasting three days and nights to choose his queen, every magical creature answers the call. Among them stand only four humans—fragile, out of place, and forbidden. One human, however, is not meant to be loved but wielded. Bound to a forgotten prophecy, this human is the final key Heeseung needs to unlock absolute control over his power. What begins as a calculated game of destiny and deception slowly fractures when the Prince of Hearts feels something he has never known—a heart breaking that is his own. In a world ruled by fate, the greatest danger is not losing power— but discovering love where only manipulation was meant to exist.