Empress Kōken
Hamanari was conferred the rank of in 751. Under Empress Kōken, he held high-level positions in various ministries, but his promotion stagnated at this rank until Fujiwara no Nakamaro's rebellion in 764. He supported Empress Kōken's side in the conflict, and was promoted to a month later. He held a position as director of the "gyōbu-shō", and in 772 was promoted to and "sangi", joining the ranks of the "kugyō".