Whether it was the local Prefecture Government Offices, the various Military Preparation Armies, or the prefectural Jingwu Bureaus, none had any authority to command Chen Sheng. He, on the other hand, possessed the authority to supervise all of Yunzhou.
Strictly speaking, Chen Sheng had been promoted.
The reason it was an "acting" role was because Chen Sheng's post was one that could, in reality, only be held by a Pill Realm Grandmaster. The position was Junior Fourth Grade, which also served as another layer of protection granted to Chen Sheng by the Government Office.
A Fourth-Grade Official, whether in a local region or in the central government, was a figure of significant standing.
This also meant that Chen Sheng would, in effect, become one of the Jingwu Bureau's core officials.
To make a move against Chen Sheng would be a slap in the face to the Jingwu Bureau.
