Core Defense

Logan never wanted to be a hero.  He never considered himself as anything other than an ordinary man.  Sure, he taught self-defense classes during the week and volunteered at the local homeless shelter whenever he had time but that, to him at least, wasn't anything praiseworthy.  So, imagine his surprise when upon dying he was given a choice to either move on or be sent to another realm and continue helping humans.  He found it odd that they said humans and not people, but he spent his life helping people so this would surely be no different right . . .right?? Can this new dungeon core save the humans of this new world from becoming extinct at the hands of the other races.