After experiencing Dazai no shoni (Junior Assistant Governor-General of Dazai-fu offices) and Gyobu no taifu (Senior Assistant Minister of Justice), he became Daigaku no kami (a Director of an Academy) and Monjo hakase (a doctor of letters) in April, 772.
大宰少弐、刑部大輔を経て、772年(宝亀3年)4月大学頭兼文章博士（もんじょはかせ）。