二天一流
In 1961, Aoki Kikuo named one of his closest disciples, Gosho Motoharu, as "Shihan" (master responsible for teaching the techniques of the ryū) and "Soke Daiken" (adjunct successor) of the 9th generation, and other disciple, Kiyonaga Tadanao, as 9th Soke, with the goal to make sure that the techniques of the style were passed to the future generations. Before, in 1955, Gosho Motoharu had received "Menkyo kaiden", the license of total transmission in Hyōhō Niten Ichi-ryū and Sekiguchi-ryū, the two schools that Aoki Kikuo was headmaster.