Mitsusuke who went back to his home base of Sakamoto-jo Castle in Harima Province found out Yoshitaka ASHIKAGA, a grandchild of Tadafuyu ASHIKAGA (illegitimate child of Takauji ASHIKAGA, adopted child of Tadayoshi ASHIKAGA) and backed him up, and strengthened his own territory's defense under the legitimate reason and tried to fight back to bakufu.
本拠地の播磨国坂本城(播磨国)に帰った満祐は、足利直冬（足利尊氏の庶子、足利直義の養子）の孫の足利義尊を探し出して擁立し、大義名分を立てて領国の守りを固め、幕府に対抗しようとした。