In 700, he was promoted to Jikikoshi which was the 12th grade of the 48 grades of cap rank in a transition of official rank system and he was appointed to be a compiler for Taiho Code.
文武天皇四年（700年）に、冠位・官位制度の変遷冠位四十八階（じきこうし）に昇進して大宝律令の編纂者に任命される。