Kidou Butouden G Gundam

In the Year FC 60, a significant portion of the human population resides in space colonies that circle Earth. Every four years, control over these colonies is determined by a major competition where each country sends one representative to battle using a massive robot known as a Gundam. Domon Kashuu is chosen to represent Neo-Japan in this contest, though his primary motivation is not securing his nation's success. Instead, he seeks to locate his brother, who is accused of causing his parents' deaths and the disappearance of a highly dangerous weapon, the Dark Gundam or Devil Gundam.