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

The Empire and the Nebulis Sovereignty have fought a war that seems to have no end. Iska, the Empire’s youngest fighter ever to become a Saint Disciple, and Alice, a powerful Nebulis mage known as the Ice Calamity Witch, meet on the battlefield as opponents. Both seek to bring the ongoing conflict to a close. But their encounter becomes the starting point for a turn of events that will shape the world’s fate.