Shang's Spirit Sense encompassed the mortal district.
It was essentially a lawless land.
Nearly no True Mages were there. There were plenty of Apprentices and a couple of Adepts, but they were only the weakest of their level.
The True Mages and High Mages would pick up the talented Apprentices and Adepts. There, they would be taught all about Magic.
Most normal people in this town only became Apprentices by blindly practicing and imitating other Apprentices. Of course, there were some people that actually sold textbooks for Apprentices, but these textbooks were expensive.
The normal people there lived in a poor state where they desperately tried to make money in any way they could.
They had nearly zero resources from outside the town, and they also couldn't easily exit the town since the mortal district was in the north and the exit was to the south.
Additionally, they were forbidden from living outside and building anything outside.