He became Gyoshi taifu (a chief of controlling the officials) in 67１, and together with Prince Otomo (Emperor Kobun) and other four senior vassals, he swore to obey an imperial edict issued by Emperor Tenchi who was in serious condition.
671年に御史大夫となり、大友皇子（弘文天皇）および他の4人の重臣とともに、重篤の天智天皇の詔を奉じることを誓った。