Lucian Black rose as the world's most formidable hunter, yet even his extraordinary power proved powerless to save what mattered most—forced to witness her tragic end. Consumed by despair, he channeled his anguish into a singular mission: annihilating the monsters responsible for his devastation, transforming himself into an unstoppable force of vengeance. But betrayal struck from within his own ranks when allies turned traitor, poisoning him in his moment of triumph. Fortune intervened when he awakened to that fateful day again—the moment he first discovered the world's most fractured ability. Armed with this unexpected redemption, Lucian swears to shield his sister from harm and uncover the dark truth surrounding his parents' disappearance.