An assassin’s death isn’t the end—it’s a new beginning.After a lifetime of bloodshed and betrayal, the world’s deadliest assassin wakes up in the body of Leon Eryndor, a young noble in a magical world far more advanced—and dangerous—than Earth. As he navigates aristocratic politics, discovers a system tied to his soul, and unlocks a unique magical power based on firearms, Leon must face his past demons while building an unpredictable future. Will his assassin's instincts help him rise above the powerful foes of this world, or will the secrets of his noble lineage bring him to his knees?