As for the Jiuzhou Immortal Gate, they simply called for reinforcements.
This was really...
After Lu Yuan understood the assistance Jiuzhou had obtained, his heart immediately felt like he had bitten into a lemon, brimming with envy.
He entertained the thought of announcing his own origins from Jiuzhou, to see if he could attract some reinforcements from the other Immortal Sects.
Then with the reinforcements, he could crush the Qing Immortal Sect and unify the Changqing Domain.
In doing so, taking advantage of the Qing Immortal Sect's weakened state after a great battle, it might indeed be possible to eliminate them in one fell swoop and take control of the entire Changqing Domain.
However, Lu Yuan abandoned this idea as quickly as it came to him.
Because there were significant problems with it.
First and foremost was the issue of identity recognition.
You say you come from Jiuzhou, but would others believe you?