Our Last Crusade or the Rise of a New World Season 1 Episode 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."