When the Shoei Itto (temporal unification of the Northern and Southern courts) became abolished, he mobilized an army with his younger brother Yoshimune and his male cousin, Yoshiharu WAKIYA, under the order of Imperial Prince Muneyoshi in 1352.
正平一統が破綻すると、1352年（正平(日本)7年/観応3年）に宗良親王を奉じて弟義宗、従兄弟脇屋義治と挙兵。