Obviously, such a place would be great for the twins. But there wasn't much of a need for it since the twins had their own fragments in the Dimensional Realm. In the end, the only thing that interested them there was the fragment itself, wherever it may be.
In any case, things worked out pretty well on the twins' side. The sect members were allowed to come and go to their training and used the demon beast territories in the surroundings to the fullest. Another thing was that the twins gradually captured more demon beasts for the Dimensional Realm. They even got some aquatic ones for the ocean.
