However, Yoshinobu TOKUGAWA had already accepted the way Yodo YAMAUCHI suggested, and had announced the restoration of power to the emperor in front of members of various clans of Kyoto (the petition to the Emperor was made on October 14), and the anti-shogunate group lost the legitimate reason to attack the bakufu.
ところが徳川慶喜は山内容堂の進言を受け入れ、前日在京諸藩士の前で大政奉還を宣言しており（14日に朝廷に奏請）、討幕派は大義名分を失うこととなった。