In the Jinshin War in 672, he was on the side of Prince Oama (Emperor Tenmu), and rode a horse alone to Yamato-no-miyako (the capital), where the enemy troops were gathering, to spread false information among them.
672年の壬申の乱で大海人皇子（天武天皇）につき、倭京に集結中の敵軍に単騎のりこみ虚報を流した。