Xuyang City was one of the cities in the Nandou Territory, which was one of the Eight Domains of the Emperor Realm. It belonged to a faction named the Guanqing Immortal Sect.
"The Guanqing Immortal Sect is a grade-six sect. Its strength is comparable to the various grade-six immortal estates in the Nantian Territory of the Lingluo Heaven... but it still falls somewhat short compared to the Xuanyou Estate."
"Even so, a sect like this only controls two small cities within the entire Nandou Territory."
Chapter 3208