The Amago Remnant Corps extended its power to the extent that it was on the verge of gaining possession of the entirety of Izumo Province, with the exception of Gassan Toda-jo Castle, which was the base of the Mori clan.
毛利氏の拠点となっていた月山富田城を除き、出雲一国をほぼ手中に収めんとするまでに勢力を伸張した。