Due to the proposal of Nagamasu YOSHIOKA, a senior vassal, he forced Teruhiro OUCHI, a remnant (of a defeated party) of the Ouchi clan to move to Suo Province along with suigunshu (a warrior battling in the sea) Shigeoki WAKABAYASHI to threaten the rearguard supporters of the Mori clan and force Motonari to retreat into Aki Province.
そして重臣の吉岡長増の進言を受けて大内氏の残党である大内輝弘に水軍衆の若林鎮興を付け周防に上陸させて毛利氏の後方を脅かし、元就を安芸国に撤退へと追い込んだ。