During October of the same year, in order to hunt down and kill the Taira clan in Saikai (provinces on the western seacoast), Yoshikiyo left Kyoto leading troops as the supreme commander of Yoshinaka's army with Yukihiro UNNO.
同年10月、西海にあった平氏を追討するべく、義仲の代官（総大将）として海野幸広とともに一軍を率いて京を出発。