Due to this reconversion, the bakufu got increasingly frustrated with Choshu, which didn't perform the duties agreed as conditions to surrender, and Shogun Iemochi again visited Kyoto on the back of insistence from hardliners such as roju Nagayuki OGASAWARA (heir to Karatsu clan) and Tadamasa OGURI, kanjo bugyo (commissioner of financeof the bakufu), to discuss the conquering of Choshu.
藩論の再転換により、既定の降伏条件を履行しない長州藩へのいらだちは高まり、老中小笠原長行（唐津藩世子）・勘定奉行小栗忠順ら強硬派による長州再征論が浮上し、将軍家茂は再度上洛する。