In ancient times, all officials in the imperial court wrote on the memorial that they would petition the emperor, and the contents written on the memorial would not be tipped off. If the things handled by the early court were similar to what you put forward in the paper, there is no need to mention them again. There are books to play, but no books to retreat to the DPRK. Basically, the emperor intends to expel guests. The courtiers will stop asking questions.