The Emperor Kanmu, who ascended the throne during the end of the eighth century, started to reconstruct slackened local administration in order to extend the Imperial power throughout the nation.
8世紀末期に登場した桓武天皇は、王威を国内にあまねく拡げるために、弛緩しつつあった地方行政の再構築に取り組んだ。