Tokyo never asked to inherit a curse. When assassins murder his father, the young soldier returns home only to discover a dark power stirring in his blood a power that makes him both prey and weapon. Hunted by the assassin guilds and feared by the lords who rule the land, Tokyo’s only chance at survival lies in an uneasy alliance with Seraphine, the very assassin sworn to kill him. But the curse has a will of its own. Each battle drags Tokyo closer to madness, each choice pulls Seraphine deeper into a bond she cannot admit. And in the shadows, Kael a rival torn between duty and honor watches, waiting for the mask he wears to finally crack. The lords want to chain him. The guilds want to use him. The curse wants to consume him. To survive, Tokyo must decide: fight the fate written in his blood… or embrace it, and become the heir the world fears most.