Doomsday Devourer: Wasteland Cleaner

(System + Prototype-inspired setting + No heroine + No saintly protagonist) After nuclear war broke out, I became the most feared “scavenger” in the wasteland. I devour mutants, evolve new forms, control hordes of corpses, and can do anything. When everyone thinks I’m just a killing machine, I’m quietly carrying out a secret plan. Until one day, a military squad kneels before me. “Please, save humanity’s last city!” I look down at my hands, which are gradually turning transparent. “Sorry. I don’t have much time left.”