In 1343, an army of the Akamatsu clan made an attack on him, which he drove back, but at the time of another attack, he lost due to an act of treachery and was driven to the corner.
興国4年/康永2年（1343年）に赤松氏の軍勢が来襲し備前国網浜（網浜の戦い）で1度は撃退したが、2度目の来襲時に裏切者がでて敗退し進退窮まった。