Given the fact that the Takeda clan and the Imagawa clan were allied, he said, 'it would be hard to believe that they mistook the reason for the Imagawa's defeat, and this is based on a reliable source obtained from the losers by a third party.'
当時武田氏と今川氏は同盟していたため「敗因を間違えるとは考え難く、第三者が敗者から得た信頼できる情報に基づく」とした。