He set up the Yorioya-Yoriko system (a system of military units sustained by a pseudo-parental relationship between feudal retainers in which a powerful retainer assumed the role of Yorioya [dependable person, or literally dependable father] and lead an army group formed by small and middle retainers called Yoriko [depending fellows, or literally depending children]), and carried out a revolutionary reform in strengthening military organizational power.
寄親・寄子制度を設け、軍事組織力の革命的な改革を行った。