The , was a group of 234 masterless samurai, founded by Kiyokawa Hachirà  in 1862. Loyal to the shogun, they were supposed to act as the protectors of the Tokugawa shà Âgun, but were disbanded upon their arrival in Kyoto in 1863.
Kiyokawa Hachirà  formed the Rà Âshigumi with funding from the Tokugawa shogunate on October 19, 1862. Originally, he claimed it was formed for protecting the Tokugawa shà Âgun in Kyoto and preparing for military action against Western countries. However, he lied to the regime; his goal was to gather people to work with the imperialists and not the shogunate government.
The Rà Âshigumi met on March 26 (lunar calendar February 8), 1863 in Edo and left for Kyoto. Kondà  Isami, Hijikata Toshizà Â, Okita Sà Âji, Inoue Genzaburà Â, Tà Âdà  Heisuke, Harada Sanosuke, Nagakura Shinpachi. Serizawa Kamo, Niimi Nishiki, Nakazawa Koto, Hirayama Gorou, Hirama Juusuke, and Noguchi Kengi were all among the members of the Rà Âshigumi. Two days later, while the Rà Âshigumi left for Kyoto, Kondo was responsible for assigning lodges for the members. However, he accidentally forgot about Serizawa's group, leading to a famous incident where Serizawa lost his temper and, with the help of his group, created a huge bonfire outside the lodges as an insult to Kondo.
On April 10 (lunar calendar February 23), 1863, the RÃ Âshigumi arrived at Kyoto and the group stayed in Yagitei, a Mibu village outside Kyoto. Surprisingly, when they had just arrived in Kyoto, Kiyokawa suddenly commanded the group to return to Edo. By then, he had secretly submitted a letter to the imperialists stating that his RÃ Âshigumi were to work only for the Emperor KÃ Âmei.
The disbanded Rà Âshigumi members returned to Edo upon Kiyokawa's command. However, nineteen members, mainly from the Mito clan dissented and stayed behind, including Kondà  and Serizawa, and formed the '. Initially, the Mibu Rà Âshigumi were called , meaning "rà Ânin of Mibu". At the time, Mibu was a village south west of Kyoto, and was the place where they were stationed. On August 18, 1863, the Mibu Rà Âshigumi was renamed the ' by Emperor Kà Âmei.
In response, a Tokugawa official made spies out of former RÃ Âshigumi members Tomouchi Yoshio and Iesato Jiro, forced them to stay in Kyoto, and forced them to join Serizawa and Kondo's group in order to keep an eye on them.
The other dissident members of the Rà Âshigumi who returned to Edo became the founding members of the ' (the Shinsengumi's brother league in Edo) with Okita Rintarà Â, the brother-in-law of Okita Sà Âji, as a commander.