 In August 18, 1863, the Mibu Rōshigumi was renamed the .In response, a Tokugawa bakufu official made spies out of former Rōshigumi members Tomouchi Yoshio and Iesato Jiro, and forced them to stay in Kyoto and join Serizawa and Kondo's group in order to keep an eye on them.The other dissident members of the Rōshigumi who returned to Edo became the founding members of the (the Shinsengumi's brother league in Edo) with Okita Rintarō, the brother-in-law of Okita Sōji, as a commander.