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

The Nebulis Sovereignty and the Empire are entangled in a war without end. Alice, The Ice Calamity Witch, a Nebulis mage of mind blowing force, and Iska, the most youthful fighter of the Empire at any point to turn into a Saint Disciple, get themselves up close and personal on the combat zone. Each looks to carry a near this incessant clash. Much to their dismay, notwithstanding, that their gathering will be the impetus that shapes the destiny of the world!