Terumoto accepted the request and on August 19, the Mori navy including the Murakami navy appeared on the sea off Osaka with 7-800 ships (around 600, in reality) to carry food and ammunition.
輝元は要請に応じ、7月15日に村上水軍など毛利水軍の船七､八百艘（実際は六百艘程度と言われる）が兵糧・弾薬を運ぶために大坂の海上に現れた。