There are myriad connections between the Yanluo Sect and the Jin Dynasty.
Liou Yuan still remembers when he, Zhao Feiyue, and Qiu Ming were guarding Chouhuai City and discovered the Calamity-level Star Evil lurking.
The Yanluo Sect sent a Foundation Establishment Great Cultivator along with an Honored Guest of the Jin Dynasty, showing the closeness between the two forces.
Thus, in Yuhengcheng, aside from the residence of the city lord, the Yanluo Sect branch is the most impressive.
It's also guarded by Foundation Establishment Great Cultivators from the Yanluo Sect.
It's not that the Five Extremes Mountain can't send Foundation Establishment Great Cultivators to guard Yuhengcheng, but ultimately this is Jin Dynasty's territory, and having an extra Foundation Establishment Great Cultivator might arouse suspicion.
And Foundation Establishment Great Cultivators have their own duties and won't personally act for a Qi Cultivation Realm traitor.
