Sakura Koubu is not a human character but rather the signature mecha unit piloted by the protagonist, Sakura Shinguji, in the anime and video game series Sakura Taisen (Sakura Wars). The Sakura Koubu is a steam-powered, humanoid combat machine designed specifically for the Flower Division to fight supernatural threats in an alternate Taisho-era Tokyo. Its design reflects traditional Japanese aesthetics, and it plays a central role in battles, symbolizing the courage and spirit of its pilot. The Sakura Koubu is iconic within the series, representing hope and determination.