When Aizu Wakamatsu-jo Castle surrendered to the new government on November 6 (表記の変更), an uprising known as Aizu Yonaoshi Ikki broke out (particularly the insurgence was intense in the areas that escaped from having been involved in the Aizu War), and it extended to almost all the territory of the domain.
会津藩でも9月22日に会津若松城が落ちると、領内（特に戦場にならなかった地域を中心）に会津世直し一揆が発生、領内のほぼ全域に拡大した。