Kazuyoshi followed Takauji ASHIKAGA with Takatsune SHIBA of head family of the Ishibashi family and when Takauji escaped to Saigoku (western part of Japan), he was appointed as a guard of the Mitsuishi-jo Castle of the Bizen Province.
和義は宗家である斯波高経の下、足利尊氏に従い、尊氏西走の時、備前国三石城の守備を任された。