Lin Qian's identity is the disciple of Wei Wushuang, an emperor of a place called the Huaxia Empire, and this information is not something that needs to be concealed.
In the Sea Spiral Star Domain, within the realm of the Wei family, with the Wei family's protection, others will not know what the Huaxia Empire's origins are.
In the eyes of outsiders, they would just think the Huaxia Empire is merely a force set up for fun by Wei Wushuang's disciple.
Moreover, the name Yanhuang Hall hardly rings a bell for common people.
Strange names make common people believe this is a rising power, or perhaps a force from the Southern Dipper Thirty-Six Realms seeking to meddle with the Pills here.
Establishing Yanhuang Hall allows Lin Qian to secretly support the Wei family's Pills without letting others know of his existence, which is the best choice.
Once the entire Wei family gets accustomed to the existence of Yanhuang Hall, controlling the Wei family in the future will be much easier.
