Ryuko Tatsuma (竜たつ間ま龍りゅう子こ, Tatsuma Ryūko?), also known as Dragoon Hero: Ryukyu (ドラグーンヒーロー リューキュウ, Doragūn Hīrō Ryūkyū?), is the former No. 9, and the current No. 10 Pro Hero. She employed Nejire Chan, Uravity, and Froppy during the Hero Work-Studies.