In the Cultivation Realm, there are quite a few unwritten rules regarding trade fairs.
Generally speaking, when a trade fair is privately organized by a cultivator going out to invite others, the number of participants is kept under fifty, and there are certain identity and background requirements for the cultivators attending.
Take Zhouyang as an example, if he hadn't used Xu Zhengyang's recommendation letter to find "Fairy Yunxiang," even if he had learned about today's trade fair from other sources in advance, and went to request participation from "Fairy Yunxiang," she would never have handed over the token to him.
The thousand pieces of Low-grade Spirit Stones were not casually received from him; Fairy Yunxiang accepted these Spirit Stones—named as an introduction fee but essentially a guarantee fee. This meant she vouched for him in front of Duanmu Yong, ensuring he wouldn't commit the foolish act of snatching treasures and escaping at the fair.
