During the maiden test of the cutting-edge battle-suit, the MADOX-01, skilled female pilot Elle Kusomoto showcases its prowess by defeating a tank assault and outshining the macho tank commander, Lt. Kilgore. Seeking revenge, Kilgore seizes the opportunity when the prototype MADOX unexpectedly lands in Tokyo. Simultaneously, the MADOX, after a series of tumbles from trucks and bridges, lands in the possession of curious college student Koji Sujimoto. Ignoring the manual, Koji ventures into the suit and embarks on a high-speed adventure across the bustling streets of Tokyo.