When an official Gunji was appointed, Ginin Gunji naturally lost their position, but Kokushi in some provinces were later given authority to increase the number of Gunji temporarily, and those temporary Gunji were also called Ginin Gunji.
正員の郡司が決まると、擬任郡司は自然に失職したが、後に国によっては国司が郡司を臨時に増員する権限を与えられ、臨時増員の郡司も擬任郡司と呼ぶ。