Todoroku Gosei Butai (轟く五星部隊, "Five Roaring Stars Corps") are a group of female soldiers created by Kaito Kurui as a backup for his Mizumizushii Hinagun. Each of them is equipped with various weapons, and the strongest units possess unique functions. Their armour is deviated from Kaito's research upon Gai Nagareboshi's Rising Phoenix Juggernaut Overdrive and many of the abilities are variants of the abilities that Gai possesses in his strongest forms. Their designs are wholly based on the Mecha Musume concept, a design motif that includes 'humanizing' machines or inanimate objects.