After getting promoted again and again in bureaucracy and being appointed as goi, it was standard practice that they worked at local region as the head of kokushi (provincial governors) who went to the spot or Zuryo (the head of the provincial governors), they became the person responsible for ruling local region and invoked the power of the state and strived to make a fortune.
官界で昇進を重ねて五位に叙されると、現地赴任国司の筆頭官、即ち受領として地方勤務に就き、地方統治の責任者になって強権を振るうと共に蓄財に励むのが習いであった。