In the same year, when the Kano no joran (the Kano Disturbance) occurred between Tadayoshi ASHIKAGA, a younger brother of Takauji, and KO no Moronao, Norisuke took the side of Takauji and Moronao, and fought against Tadayoshi's force.
同年、尊氏の弟・足利直義と高師直の対立である観応の擾乱では、尊氏・師直側に与して直義軍と戦っている。