Although Takanori KOJIMA was in the advanced army, he formed another corps and deployed it because of a conflict regarding their strategic plan with the supreme commander Tadaaki CHIGUSA.
児島高徳はこの先発隊に従軍していたものの、総大将・千種忠顕との作戦上での衝突が原因で別働隊を率い布陣を行う。