The underground trading hall was indeed underground. It was very large and was divided into two areas. One was the public area where cultivators could set up stalls. However, they had to pay a lot of fees every time they set up a stall.
The other area was a high-class area filled with shops. There was only one owner of these shops, the gold spirit trading company.
The underground trading hall was not open every day. It was only open for three days a month, starting from the 5th, 15th, and 25th day. The rest of the time, the underground trading hall was closed.
In the underground trading hall, regardless of whether one was buying or selling things, everyone who entered had to wear a special kind of clothing. This kind of clothing could completely block a person's appearance and also block a person's divine sense. If you wanted to leave any mark on a person's body, it would also be blocked by this clothing. It could be said to be the best defense method.
