The Azim Steppe wouldn't be the place for it; the Xaela tribes don't share any similarity with Chinese cultures and already have their own religious beliefs in place. Yanxia might be the place for it, but so far we haven't seen anything about religious practices. The onmyouji enemies that appear in FATEs there are exiles from Hingashi, banished for performing dark rituals, but we don't know if Hingashi's onmyou is based off of Doman Taoism the way real-world Japan's onmyou is based on Chinese Taoism.
If there are levequests or FATEs in the world that can clear anything up, I haven't done too many of those so feel free to add onto this if anyone knows more!
If there are levequests or FATEs in the world that can clear anything up, I haven't done too many of those so feel free to add onto this if anyone knows more!