Following the removal of pro-Choshu court nobles and the Choshu clan from the Imperial government in the August 18 Deportation, Imperial Prince Asahiko and Military Commissioner of Kyoto Katamori MATSUDAIRA gained the trust of Emperor Komei, but this created a strong sense of bitterness and rancor in the Choshu clan samurai and anti-Shogunate samurai, who stepped down from office.
八月十八日の政変により長州派公卿および長州藩が朝廷から退くと、朝彦親王は京都守護職松平容保とともに孝明天皇の信任を篤く受けるが、これは同時に、下野した長州藩士や倒幕・尊攘派の志士たちの強烈な恨みを買うことにもなる。