World City was the second of the three cities that Starry Sky Dao Polarity Sect established inside the Great Wall to be the outposts for its disciples.
It was different than East Sea City, enormous, like a gigantic cube made from black bricks. Black light shone out from it in all directions. Enormous magical cannons that were clearly defensive weapons could be seen on the walls, and as for the enormous stone slabs that made the bricks, they were all inscribed with sealing marks, indicating that the entire city was itself a spell formation. Although that spell formation was only partially active, it still kept the city perpetually sealed. This was the second major line of defense inside the Great Wall. In addition to acting as a backup defense location, this place existed as a supply depot for Great Wall City, the third city.[1]