Meanwhile, the lord of the Shishido Domain Yorinori MATSUDAIRA was ordered by the bakufu and went to Mito to suppress the domestic conflict on behalf of the lord of the Mito Domain Yoshiatsu TOKUGAWA who was staying in Kyoto, but the core members of the extremists, including Kounsai TAKEDA, joined him and many of the samurai of the sonjo party also accompanied him, so Ichikawa and others prepared to fight against them and refused to let them go into the castle.
一方、京都にいる藩主慶篤の名代として宍戸藩藩主松平頼徳が幕命により内乱鎮静のため水戸へ下向するも、一行の中に武田耕雲斎ら激派の要人が加わっており、尊攘派の士民が多く同行していた為、市川らは戦備を整えて一行の入城を拒絶する。