Konkaikomyoji marks the origin of the Shinsengumi. In 1862, Kyoto Shugoshoku Matsudaira Katamori based himself here and placed part of the roshi corps — including Kondo Isami and Hijikata Toshizo — under Aizu's protection, leading to the group's founding. The temple's Aizu cemetery holds about 300 Aizu warriors, comrades who fought alongside Hijikata at the Battle of Toba-Fushimi.