Kidou Butouden G Gundam

By the year FC 60, the vast majority of humanity has abandoned Earth to reside in sprawling space colonies orbiting the planet. Rather than waging devastating wars, these orbital nations settle their political dominance through a grand tournament held once every four years. Each colony selects a single elite pilot to represent them in combat, battling one another using colossal mechanized weapons known as Gundams. Domon Kashuu is chosen as the champion to represent Neo-Japan in this high-stakes competition. However, his true motivation extends far beyond securing national glory or claiming the tournament's ultimate prize. Domon enters the battlefield driven by a deeply personal vendetta: he seeks his estranged brother, who stands accused of murdering their parents and absconding with an incredibly dangerous weapon known as the Dark Gundam, also referred to as the Devil Gundam. As rival pilots clash across the globe, Domon’s quest for answers transforms the tournament into a relentless pursuit of justice and vengeance.