In fact, when Lin Ze found out that Qiu Shiba, or Jiang Li – the fifth prince of the empire, was working in Huichen, he was definitely shocked. Even though the Huichen members have guessed that Qiu Shiba is from the palace, they do not know his real identity. But this isn't the point. The point is that why would Qiu Shiba work in the Huichen? Not only this is not befitting to him as he is a prince, but Lin Ze also knows that despite the emperor being wary of people, the emperor wouldn't be that guarded with the Huichen, or else he wouldn't back them personally. So, the emperor shouldn't have sent someone in Huichen as an undercover for him to secretly monitor the Huichen in case they changed. And to even send the fifth prince himself.