In the Orte Empire, Count Saint-Germi succeeds in his negotiations with the merchants of Gu-Binnen, putting an end to a decades-long war and securing the resources Orte desperately needs. Meanwhile, Naoshi Kanno bolsters his beastman forces with the addition of the cat tribe. After receiving an unexpected envoy from Rear Admiral Tamon Yamaguchi—a fellow Imperial Japanese Armed Forces member—Kanno, along with Scipio Africanus, sets out to meet a man he thought to be dead.

As his enemies prepare for war, the Black King mobilizes his army, giving command to a certain Drifter's sworn enemy.