With the switch to this new system, known as the Ocho Kokka system, as long as the zuryo delivered a set amount of tax to the treasury, they were free from control by the imperial court and were able to privately secure/accumulate any revenues that exceeded the set amount.
王朝国家体制への転換の中で、受領は一定額の租税の国庫納付を果たしさえすれば、朝廷の制限を受けることなく、それ以上の収入を私的に獲得・蓄積することができるようになった。