Saitama gets teleported to different universes joining teams in their efforts to preserve humanity and/or their homeworld. How does he do? What obstacles would he face?
1) The Avengers /Marvel-616
2) The Justice League /DC Nu-52
3) The Z-Fighters/ Dragonball Super
4) Hideout Raid Team/ My Hero Acadamia
5) ANBU Black Ops/ Boruto
Not necessarily him vs. everyone but how will he do with this motive?