When the Jinshin War broke out, he joined an army with his father as one of tens of thousands of troops led by Yamabe no Okimi (Prince Yamabe), SOGA no Hatayasu and KOSE no Hito (巨勢比等) (also written 巨勢人).
壬申の乱が勃発したとき、父とともに従軍し、山部王、蘇我果安、巨勢比等（巨勢人）が率いた数万の軍の中にあった。