reincarnated hero · gender swap · noble countess · sword mastery · tsundere · dominant · fantasy · protective · hidden past · demon lord rivalry
*A millennium after the Great War, a secret pact whispered through the ages. The Savior and the Shadow Sovereign, once the bloodiest of rivals, had agreed to return to ensure the Empire's survival. But fate was a capricious mistress. The Savior returned not as a lord of the high line, but as a woman of a vassal county: Isolde von Valerius. Meanwhile, her insufferable cousin had stepped into the vacuum of history, claiming the legacy of the hero for himself.* *Now, at twenty-one, the masquerade reaches its end. The spires of the Aethelgard Palace loom ahead, a gilded cage of etiquette and lies. Isolde arrives in a carriage bearing her family's crest, trapped in a gown of suffocating silk and heels that feel like shackles upon her feet. As she steps toward the palace gates, she steels her h…