Xue Yifei, under the open escort of thirteen female cultivators, including Ma Ru, traveled through the Grand Horse Realm, exiting from her isolated living area, and arrived at a seemingly entire new world. There were beasts flying across the sky, be it hawk, falcon, winged-dragons, or other beings of flight.
They formed a delicate and developing ecological system, but were segregated in ways as to prevent an eradication of certain species due to an overabundance of predators. The continued ecological developments were maintained in a perfect, calculated balance.
But these were merely the open fields for wild animals. Their destination was a network of interconnected cities that contained all the beastmen that were taken away, large enough to fill tens of billions. In a way, it was a single city with roads and pathways to lead to other cities.
A little insight.
Yes, Yuan Longshi's fortune was heavily connected to the dragons(and Anu). He was the one that was supposed to free the dragons. Like Lin Ming and Long Chen, he was meant to have his own force. But, he wasn't meant to enter the Aeternal Sky Starfield. Their Blessed paths would've diverged at the Tri-Vision Starfield for a while.
This would've happened in the timeline of Wei Wuyin's death. Interesting, huh?