Everyone Says I'm Crazy, I Rely on My Serial Number to Kill Gods

Awakening the only divine order number zero in the world, I was admitted to a mental hospital. After killing the god, all he got in exchange was a doubled amount of medicine. All the patients are ancient gods, all the staff in the hospital are actors and actresses, and only the doctors and nurses are working seriously. The usurping demigods, the ancient gods, and the Lord of the Void came one after another. I use the body of a madman to swallow Wanxu and suppress the gods!