He achieved the greatest success when he fought for Prince Oama (Emperor Tenmu) during the Jinshin War in 672, serving as a troop leader in Omi area, and won every battle.
672年の壬申の乱で大海人皇子（天武天皇）に属して戦い、近江方面の諸将の筆頭として連戦連勝し、最大の功を立てた。