In the thirty-sixth century, humanity has conquered the galaxy and colonized countless star systems. The Galactic Empire, modeled along Prussian lines, and the democratic Free Planets Alliance are at war, and the fate of every human being in the universe hangs in the balance. This classic Japanese space opera, adapted into a legendary anime, is finally available in English for the first time.

Imperial forces have captured the Phezzan Dominion and draw ever closer to the Free Planets Alliance capital of Heinessen. Yang hurriedly abandons Iserlohn Fortress and heads for the capital to protect countless civilians. Taking out Reinhard is the alliance's only path to victory. Despite the empire's superior numbers, Yang continues to outwit its most resourceful generals via tactical wizardry. Reinhard, on the other hand, seeing through Yang's devices, opts for all-out war. And so, the "invincible" and "undefeated" once again clash swords. Who will emerge victorious?