Having been outwitted by Masatora and invaded empty Saijo-san Mountain, the separate troops of Takeda's forces led by Masanobu KOSAKA and Nobuharu BABA rushed to Hachimanbara.
政虎に出し抜かれ、もぬけの空の妻女山に攻め込んだ高坂昌信・馬場信春率いる武田軍の別働隊は、八幡原に急行した。