If the Great Void Sect participated in this epic battle of the Ying Sea, then Yan Mingyue’s position would still be unclear. However, if she chose not to interfere, then it would be clear that Yan Mingyue was siding with the Great Zhou Empire.
There was not much rapport between the Great Zhou Empire and the Celestial Sect of Wonders.
Yan Mingyue herself was on friendly terms with everybody inside the Celestial Sect of wonders. She was there with Lin Daohan are the Spiritual Conference of Mount Kunlun as well. From the outsider’s perspective, Yan Mingyue, an outstanding disciple of the Great Void Sect, favored the Celestial Sect of Wonders a lot.