After learning about the middle realm of the Southern Heaven Ancient Realm from Qi Tian Ming, one of the inspectors of the Profound Nether Mansion, Duan Ling Tian became even more eager to join the Profound Nether Mansion. The middle realm of the Southern Heaven Ancient Realm, unlike the lower realm, was always open, and Celestial Dukes from the Profound Nether Mansion were free to enter whenever they wanted. The restriction on the cultivation bases meant that the strongest people who were allowed to enter were Ten Directions Celestial Dukes.