He was appointed to Dainaiki (senior secretary of the Ministry of Central Affairs) in 887 and swept aside the theory of TACHIBANA no Hiromi by lecturing with FUJIWARA no Sukeyo and KI no Haseo in the Ako Controversy the next year.
仁和3年（887年）大内記に任ぜられ、翌年の阿衡の紛議に際しては藤原佐世・紀長谷雄とともに所見を述べ、橘広相の説を退けた。