Gradually, economical and political contradiction became serious between zuryo, who had big authority for ruling provinces, and gunji/tato fumyo class, who had economic power gained through the management of myoden or private estates.
国内支配に大幅な権限を有した受領と、名経営や私領経営などを通じて経済力をつけてきた郡司・田堵負名層との間には、次第に経済的・政治的矛盾が生じるようになった。