After experience as Iyo no Gon no kami (provincial governor of Iyo Province), Gon Chunagon (provisional vice-councilor of state), Saemon no kami captain of the Left Division of Outer Palace Guards), Kebiishi no betto (Superintendent of the Imperial Police) and other positions, he became Togubo (Crown Prince's Quarters) of Imperial Prince Morinari (later, Emperor Juntoku) in 1202.
伊予権守・権中納言・左衛門督・検別当などをへて、建仁2年（1202年）には皇太子守成親王（のちの順徳天皇）の春宮坊となる。