Set in FC 95, Earth's Nations have set to the stars, start new colonies. There are no wars in the colonies. They chooses Gundam Fights instead of war to fight out their differences. The winner will receive the title of "Ruler of all colonies" and rules the entire colony. The 13th Gundam fight has begin, but this time an experiment has gone away, a nanotechnological monster of unspeakable power has been losed. When the Neo Japanese Gundam fighter Domon Kasshu falls to earth, he has more in his mind than just winning the tournament. He must find the Devil gundam, created by his father and was stolen by his brother, Kyouji Kasshu, before a catasthrope befalls the world that will dwarf anyhing before ever before imagined.