Social hierarchy is indeed everywhere!
If you have wealth, power, and strength, you can live in better locations; the cities in the Wilderness World are no different from the core of human towns.
Jiang Yuan thought that to reach Cloud City, he needed to obtain an officially recognized travel permit from Wilderness World in Carefree City.
Xie Chenyuan, as a disciple of the Cloud Concealment Sect, could manage everything with the sect's badge, but he, as a "Loose Cultivator," probably needed to buy a house to "settle down" and obtain an identity certificate from Carefree City.
Once that's done, he can go through Cloud City's layers of checks and officially enter, by which time there will be large quantities of Spirit Medicine for wholesale purchase. He can then process them into Elixirs in the Alchemy Room and sell them at the Market to make a fortune!
