Considering the New World that Tree has made for us is [i]completely[/i] different from the canon Maruyama-Overlord New World, I don't think it's safe to assume that we can beat up on anyone and everyone. We don't really know if there are things like the Dragon Lords, the Elf King, Adamantite Adventurers or World Items that could muck us up. For all we know, a regular old ogre in this New (Tree) World could be level 55. I doubt anyone would have any issue dealing with peasant or mook soldiers, but something tells me Tree isn't just going to let us roflstomp the local inhabitants of this world like Ainz and his crew does. :P