Soma Kazuya was summoned to another world as a Hero, but he didn’t go to adventure—he became king of Elfriden and took up governance. Using his knowledge from his old world, Soma began promoting reforms, but in the end the time came when he would have to confront the general of the army, Georg Karmin, who refuses to change his rebellious stance. When the neighboring principality of Amidonia starts interfering with their own goals, the action shifts from the political arena to the battlefield. “Well then, the conquest begins!” Can Soma successfully carry this war through to the end?