Following the Great Demon War, the formation of the World Combat Revue Organization marks a new era of peace. In 1940, Captain Kamiyama Seijuurou is appointed to lead the Imperial Combat Revue in Tokyo. With a diverse team including a swordswoman, a shrine maiden, an actress from Greece, a ninja prodigy, and a noblewoman, they prepare to defend against a fresh demon threat and compete in the prestigious Combat Revue tournament. As they juggle their duties, they strive to preserve their base at the Imperial Theater.