Like the Shinsengumi, the Mimawarigumi too was a special police force, created to restore order to Kyoto. The Mimawarigumi were made up of higher-ranking samurai and retainers who served feudal lords, as opposed to the Shinsengumi which consisted of ronin. In Gintama, the Mimawarigumi appeared wearing the opposite color uniforms from the Shinsengumi, white. The group served as grand rivals to the Shinsengumi as the had since the Baragaki Arc get in their way of work within the laws. However after a grand fight between them both in the Farewell, Shinsegumi Arc, The mimawarigumi joins hands with the shinsegumi as a united police force to fight againts the coruppted Bakufu and the Tendoshu.
There are only two named members of Miwarigumi; Sasaki Isaburo, the commander of Mimawarigumi and the vice captainImai Nobume, Imai Nobume is a female member and a part of the assassination unit of the Mimawarigumi.