Sakura Taisen is a Japanese multimedia franchise created by Ouji Hiroi and developed by Sega and Red Company. The series is set in a fictionalized version of the Taisho period in Japan, blending elements of steampunk, mecha, and alternate history. It follows the adventures of the Imperial Combat Revue, a secret organization that defends Tokyo from demonic threats using steam-powered mechs. The franchise spans video games, anime, manga, and stage productions.