As he followed Mu Youlan out of the city, Jiang Chen learned what this place was, and a solemn respect rose in his heart!
This was an extension space of the Extraterritorial Battlefield, slowly expanded within a spatial rift.
This stretch of space was originally a fragment of the void surface shattered by the grand formation in those years, but back then it lay within the spatial rift and was not discovered.
Later, when the Extraterritorial Battlefield opened, the Extraterritorial Alien Race launched a battle Above Saint outside the Extraterritorial Battlefield. In that battle, this space was discovered by the Extraterritorial Alien Race, and thus they began to open it up.
