The reason they were sent by the Emperor is naturally because they are quite capable. When they play these roles, they do it convincingly, so much so that the average person can hardly tell the difference.
However, the spies placed in the market by Song Chongjin, along with the stewards, are very keen-eyed individuals.
With them around, those intending to use tricks or conduct fraudulent schemes have almost no chance of succeeding, as they are promptly caught and locked up.
These few people, though convincing, exhibited some unusual traits that naturally caught their attention.
Nevertheless, Song Chongjin instructed that unless they were involved in activities such as swindling money or harming the market, they should be left alone.
So they only kept a watchful eye, ready to act if there were any improper behaviors.
