Although Takauji moved his forces to Kyoto, they were pushed back by the Imperial forces and Takauji was forced to escape to Kyushu, where KO no Moroyasu played a remarkable role in battles in the Chikuzen Province and other areas.
京都へ攻め上った尊氏が朝廷軍の反攻に遭って九州へ落ちると、筑前国などの戦いで大いに活躍する。