Having received the information that the government army gathered and stationed in Osaki, the earlier dispatched Kihei-tai launched a surprise attack on the government army but fought so tough a fight that the commander of the 2nd company was killed in the fighting.
大崎に屯集しているとの情報を得た先発の奇兵隊は7月11日、官軍を奇襲したが、二番隊長が戦死するほどの苦戦をした。