Kimi to Boku no Saigo no Senjou, Arui wa Sekai ga Hajimaru Seisen

The Empire possesses a high level of knowledge, and Nebulis is feared as the "Land of Witches". On the battlefield opposing these two countries, a young man and a young woman met: Iska, the youngest swordsman in the Empire's history, and Aliceliese Lou Nebulis IX, the princess of the imperial family nicknamed "the Ice Witch".

Being sworn enemies, they must kill each other. However, Iska fell under the spell of Aliceliese's beauty and nobility. For her part, she is attracted by the young man's strength and way of life.

Together, they will try to establish peace between the two kingdoms.
Based on the novel "Kimi to Boku no Saigo no Senjou, Aruiwa Sekai ga Hajimaru Seisen" by Sazane Kei.