On April 24, 774, Nemaro who had been Ge-jugoinoge (Jugoinoge [Junior Fifth Rank, Lower Grade] given to persons outside Kyoto) at that time was appointed to an assistant governor of Dewa Province by the Empress Shotoku.
774年（宝亀5年）3月5日(旧暦)、当時外従五位下であった根麻呂は称徳天皇より出羽国介に任ぜられる。