The story takes place in the vast universe of the distant future. The Galactic Empire and the Free Planets Alliance, which split from the Empire, are two major forces. They are enemies of each other and cruel wars are constantly taking place between them. The two famous corridors that connect the Empire and the Alliance are the "Feisha Corridor" and the "Iserlohn Corridor". In the Fesha Corridor, there is a special country, the "Fesha Autonomous Region". This seemingly weak country has been able to survive in the turbulent situation in its own way and has become another force that cannot be underestimated. For a long time, a delicate balance has been maintained between the three forces, and the appearance of Reinhard von Lohengramm (voiced by Ryo Horikawa) of the Empire and Yang Weili (voiced by Takashi Toyama) of the Alliance foreshadows the end of the balance, and the wheel of history begins to turn.