But, this was temporary, and in the mid Heian period, the On hakase became an honorary post assigned to scholars from the Nakahara clan and the Kiyohara clan which monopolized Myogyo-do.
もっともこれも一時的なもので、平安時代中期には明経道を独占した中原氏・清原氏出身の学者に宛がわれる名誉職的なものになっていった。