Okita Sōji
In 1863, the Tokugawa shogunate organized a massive group of "rōnin" for the purpose of protecting the shōgun Iemochi during his time in Kyoto. Kondō joined the unit, which became known as the Rōshigumi, with his close friend Hijikata Toshizō, as well as Shieikan's members and guests Yamanami Keisuke, Okita Sōji, Harada Sanosuke, Nagakura Shinpachi, Tōdō Heisuke, and Inoue Genzaburō. After the de facto commander Kiyokawa Hachirō revealed their true purpose as being Imperial supporters, the Rōshigumi was disbanded and most of the members returned to Edo. Kondō, Hijikata, former Mito retainer Serizawa Kamo, and a handful of others remained in Kyoto and formed the Mibu Rōshigumi. Acting under the direct orders of the shogunate, Matsudaira Katamori of Aizu undertook supervision of these men. Under the oversight of Aizu, acting in its role as Protector of Kyoto, they worked as police in the imperial capital.