Burn! The Blade of Ryo!. Ryo travels to the city of Tokyo to attend a martial arts competition during which his father, a master in the art of Kendo, will perform. At the end of the event, the master is challenged by a mysterious and disturbing individual who manages to bring him down. Ryo, baffled by the fight, is threatened by an ugly thug who forces him to follow him. The hero manages to eliminate the individual who turns out to be a demon. Ryo's father is hospitalized because he is in a precarious condition and that same evening the young man is challenged by his father's opponent who also reveals himself as a soldier of the empire of demons. Meanwhile, a Megarobot attacks the city and then heads towards the laboratory, taking advantage of the absence of Getta Robot. Fortunately Mikiru manages to retrieve Ryo in the city who has fought against dozens of double of the enemy who is actually on the Demon Robot. The Throw robot can form again and Ryo can avenge his father by eliminating the evil demon.