The clan also moved forces up to Aki Province and attacked Kagamiyama Castle, a governing base of the Ouchi clan, and also had Motonari MORI and Komatsumaru MORI on the Amago side to join the attack through the order of Hidetsuna KAMEI, a senior vassal of the Amago clan.
安芸へも手を伸ばし、大永3年（1523年）には大内氏の安芸経営の拠点である鏡山城を攻め、重臣亀井秀綱の命で、傘下の毛利元就と当主毛利幸松丸に攻城させた。