Shinsengumi

The Shinsengumi anime franchise, whose source material is not specified in the provided text, centers around the Shinsengumi, a real-life special police force that existed in Japan during the late Tokugawa shogunate (1863-1869). The franchise depicts this organization, known for their "truth" (誠, makoto) banners and light capri blue (浅葱色, asagi-iro) overcoats, and their involvement in various historical events such as the August 8th Coup, Ikedaya Incident, Kinmon Incident, Aburanokō Incident, and the Boshin War.