When Qin Feng had just ascended the throne, Qin Chen had protected his ninth brother and had never left. He had always been in Qin City with Lord Dragon, silently intimidating all those who were against his brother.
Among them, there were also some spies from other immortal divine dynasties who wanted to obtain information and arrange for some spies to enter the dynasty.
To the various royal families, this was a common method. Within every dynasty, there were spies from other dynasties that silently monitored everything. Even the most powerful emperor couldn't completely resolve all the hidden dangers because they were hidden too deeply.
Moreover, the imperial capital was open to the public, and anyone could enter. It was truly too difficult to thoroughly get rid of them.