However, at that time, the territories of the Samurai were acquired through annual contracts of undertaking management of a part of Kuden (field administered directly by a ruler) with the Kokuga (provincial government) and were therefore unstable, unlike in later years when the Samurai's status and rights were better established.
ただし、この時代の発生期の武士の所領は、後世、身分地位の確立した武士の安定した権利を有する所領と異なり、毎年国衙との間で公田の一部を、経営請負の契約を結ぶ形で保持するという不安定な性格のものであった。