The story so far:
Attack on Titan -> Onepunch-Man -> Chinese novel vs Norse mythology
The strangest thing about this comic is that all the strong humans are Chinese, whereas all the gods are from every other pantheons, except for Chinese gods, who are only hinted at but was not present in the tournament.
I knew revolver ocelot was the strongest human, as he had the greatest gun ever made, the Colt Single Action Army. It had six bullets, more than enough to kill anything that moved.