Later, SAITO, who was then 20 years old, was promoted to Fukucho-jokin (third-rank of Shinsen-gumi masterless warrior party) in the election of the cadre of the Shinsen-gumi masterless warrior party.
その後、新選組幹部の選出にあたり、斎藤は20歳にして副長助勤に抜擢された。