The Normalverse is a place in the UnOmniverse where nothing notable happens. Literally the most interesting place there used to be Pluto, but it got frozen over by technically unbreakable ice.
The Normalverse used to be an interesting place when Inspector Gadget was in control of it, but when Evil Mani-Mani/Mani-Mani The Treacherous came along. Everything got stale, and even after he banished him to Pluto, he could never recover the state of the planet. Not even when "The Pee Purge" came along, no one was interested. Even some gods that he gifted powers left.
I now see why Wallman left.