When Cracks unleashed monsters upon the world nine years ago, humanity faced extinction. The awakening of Hunters wielding a System-granted power saved civilization from collapse, yet an unforeseen curse emerged: using their abilities drained Hunters of their sanity. Only Guides—a rare classification among the Awakened—possessed the ability to restore a Hunter's fractured mind through their connection. The System measured compatibility, and Wonhee's boyfriend's matching rate with his assigned Guide was 76%. One conversation later, she was single. Wonhee accepted her fate as a mere Civilian, abandoned for someone more valuable. But the System had other plans. When her own awakening revealed her true classification, everything changed. She wasn't powerless—she was a Guide, one of the most coveted individuals in a world where Hunters depended on her kind for survival. Now caught between a Hunter who discarded her and the bonds that could reshape her destiny, Wonhee must navigate a world where her value is no longer questioned, but where the price of power demands everything.