Yoriyuki led an army to Kyoto to avenge his father and joined Yoshiakira ASHIKAGA who was the heir of Takauji, Yoriari (his own brother) who was leading an army from Sanuki, and other allies to fight in the Battle of Otokoyama, at which the army of the Southern Court was defeated.
頼之は弔い合戦のため軍を率いて上京し、尊氏の嫡子足利義詮に属し、讃岐の軍勢を率いた弟の頼有らと男山合戦に参加して南軍を駆逐する。