Our Last Crusade or the Rise of a New World: Season 1, Episode 1

1 - 1: The Encounter of the Two Nations' Ultimate Weapons

Two nations, the Empire and the Nebulis Sovereignty, have been at war for 100 years. Imprisoned for freeing a witch, Iska is given a chance at freedom. In exchange, he must take down a powerful astral mage known as the "Ice Calamity Witch."