Originally, powerful farmers such as Myoshu (officer of the field) made master-servant relationship with Shugo Daimyo (provincial governors) and Kokujin Ryoshu (local samurai governors) and achieved the position of samurai.
もともとは、名主などの有力百姓だった者が、守護大名や在地の国人領主などと主従関係を結び、侍身分を獲得した。