A city within a city.
Technically, Valestorm was a rather small city, more of a town due to its population.
All of it was enclosed within a circle border created by an unimaginably vast dome of mana that reached into the sky.
At the edge of the border were scattered multiple outposts that overlooked the rest of City Z in all directions. At the moment, a tidal wave of black was pushed against thks border.
The black wave consisted mostly of zombies and low order rank and file devils.
Those who were stationed at these outposts to clear out the zombies and Devils were weaker humans trying to gain as much experience points and attribute points as they could.
Anyone beyond the first Tier would be unable to benefit much from this.
