Ryukendo

O jovem Kenji Narukami chega à cidade de Akebono, sendo confundido com um demônio logo ao entrar pela ponte da cidade. Uma invasão de Servos malignos da Yamanga abate-se sobre a cidade. Kenji salva o filhote de cachorro de um dos comerciantes da área atacada, enquanto um guerreiro vermelho prateado aparece e derrota os invasores. Posteriormente, o criador de monstros da organização Yamanga, Doutor Worm, cria a besta Reptolillix para devorar os metais da cidade. Kenji tenta lutar contra o demônio, que salta pelos céus com o jovem em seu dorso. Ao ser atingido pelo clarão de luz de Geki Ryu, Kenji cai em um templo mas não se fere. O artefato controla seu corpo, fazendo com que o jovem se transforme no poderoso Espadachim Madan Ryukendo. Com um novo poder em mãos, Kenji derrota a criatura com seu Corte Madan, salvando a cidade.

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!!

Jamanga General, Doctor Worm, arrives with a huge armoured black tank to attack Akebono City! The demons are catching the residents one after another. Kenji comes across a female police officer who shoots and fights with a handgun. It is Ichiko and Ritsuko of the Akebono Police Department, Traffic Division. Kenji is impressed by their determination to protect their city by themselves and transform into RyuKenDo and summon the beast king, Brave Leon. Brave Leon is transformed into Leon Trike. To defeat the armoured black tank, RyuKenDo began to track them using Leon Trike!

Fire RyuKenDo defeated the advanced demon, Tsukaima using his finishing move, Blazing Slash. At S.H.O.T.'s Base, the Madan key obtained from defeating Jamanga's armoured black tank was found to be Aqua Key by The Book of Canon of Light and began to adjust. But they don't know how to use it. On the other hand, Rin pointed out from the people in the city that the stronger RyuKenDo is, the more powerful the enemy will be. Then, the Tsukaima who should have been defeated appeared again. The enemy has challenged the battle with its new flame slashing power!

Kenji, who gained Fire Mode, Aqua Mode, and even the Beast King, is completely ecstatic. Around that time, another General of Jamanga, Jack Moon, appeared in Akebono City, and after searching for S.H.O.T.'s information, people were trapped in a crystal ball! Komachi, a ghost that appears in Akebono City stopped Kenji from facing the fight alone. However, he struggles with the powerful attacks from the proud swordsmen, Jack Moon. An unexpected reinforcement appeared there ...

As a result of analyzing the acquired Madan Key at S.H.O.T., it became clear that it was a key to activate RyuGunOu's new powerful technique, the Dragon Cannon. So in order to acquire the powerful technique, Fudou repeatedly undergoes severe training. In the sky of the city, Jamanga's demon beast, Balloon Gunner, appeared. People who took a beam from Balloon Gunner, made them swells like a balloon and floated in the sky. Fudou, who completed the technique with amazing speed, decided to work with Kenji to defeat the enemy and save people...

Giant iron weights crush buildings and cars. Akebono Police Station is in a state of trouble with the work of Jamanga. RyuKenDo struggles with the attack of the demon beast, Meganōma which can make iron weights fall from the sky. Not even a Blazing Slash can defeat it. So RyuKenDo summons a new beast king! The name is Gorilla Beast King, Fire Kong. However, Fire Kong, who has a lot of pride on the other hand, was hurt by RyuKenDo's words and ran away without listening to orders!!

The river flowing through the town suddenly gets dirty, and the demon beast, Edenoid appears from the water! Pollution spreads in a moment. RyuKenDo and RyuGunOu are fighting the demon, but it escapes too quickly and lost track. S.H.O.T's member, Rin Sakyo, burns hostility at the demon who soils clean water as an act that cannot be forgiven. Rin had memories of her late brother. With her brother trying to protect the river where fireflies can live, Rin headed towards the forest alone for the search where Edenoid is likely to be lurking.