The God Who Corrupts Civilization

A civilization on the brink of collapse. It seems nothing special: ordinary humans, ordinary technology. The moment it is watched by the gods, its destruction is already sealed. Humanity is fragile. Only when reason fades can strength emerge alongside madness. “Come on, let’s see whether I become one of you first, or drive every last one of you out before then!” “This is our civilization!” P.S. No female lead (meaning no romance); the protagonist should remain human throughout.