The people of Akebono City are suffering from the evil organization known as Jamanga. They are collecting the negative energy generated when people feel fear and anxiety for the resurrection of the Great Demon King. On the other hand, Kenji is taken to the secret base of S.H.O.T., an organization that fights against Jamanga. Therefore, he vows to fight as S.H.O.T.'s warrior, RyuKenDo, together with the sword, GekiRyuKen, who has the will and can speak languages. At that time, the Plant Demon Beast Giga Flower attacks the town. It's time to use the new key, Fire Key for RyuKenDo!!
Kenji é levado aos quatéis da S.H.O.T., a organização secreta que combate os monstros da Yamanga. Ele conhece Juushirou Fudou, soldado da organização que o salvou dos Servos anteriormente, vestindo a armadura do Atirador Madan Ryugan'o. Porém, quando a planta gigante Giga Flower aparece em Akebono, ambos os guerreiros Madan precisam detê-la. Ryukendo usa a Chave Fogo adquirida na batalha anterior e aciona a Armadura de Fogo, tornando-se Ryukendo Fogo e derrotando a planta.
