Saitama ends up stumbling in a medieval world in a war between Elfs, Humans, and gods. Saitama, being who he is, doesn't want any part of their conflict but ends up being caught in the middle of it anyway. Which side will he choose? Saitama would probably side with the humans, but all three factions have a sense of humanity in them. Will Saitama side with the elves? The gods? The humans (probably so)? Or will he rebuke all three? There's only one way to find out.