As the Gundam Fight is about to begin, Domon Kasshu, the Gundam Fighter of Neo Japan, arrives on Earth after his Shining Gundam has unexpectedly veered off course and crashes in Rome.

As Domon travels to Neo China, he is approached by two Shaolin monks who urge him to take on the Gundam Fighter of Neo China, who has apparently gone rogue.

Domon goes to Neo Mexico in order to fight the Gundam Fighter, Chico Rodriguez, but upon arrival he learns that the fighter has run away and is being hunted by the local authorities.

Rain manages to save Allenby by destroying the Walter Gundam. Schwarz and Kyoji sacrifice themselves so Domon can destroy the Devil Gundam's cockpit, defeating it.

Ulube now has the Devil Gundam at its full power, but though diabolical, he does not risk innocent lives, ordering an evacuation of the Neo Japan space colony.