Felix Levy, a transmigrator with the historically dreaded SSS-rank Netherlord talent, faces rejection and scorn after his ex-girlfriend dumps him and the academy expels him. Despite his talent being seen as useless since it drains his lifespan with every summoned undead, Felix's ability unexpectedly evolves into the Supreme Netherlord, commanding powerful undead like Bone Dragons and Mourning Angels. His rivals doubt he can survive long enough to prove himself, while Felix activates a mysterious system that signals his talent will auto-evolve further, setting the stage for his dramatic rise amidst derision and danger.