Thanks to a continued conflict between the Otomo clan and the Ouchi clan (or, a peaceful, although superficial, relationship between the Amago clan and the Ouchi clan), the Amago clan succeeded in expanding its territory to further east by winning a crushing victory against Harumasa AKAMATSU, the family head of the Akamatsu clan and shugo of Harima Province.
大友氏と大内氏の争いが続いていたこともあり（又は大内氏とは表面上は和睦状態だった為）、東部への勢力を更に拡大すべく播磨国守護の赤松氏当主赤松晴政と戦い大勝する。