Our Last Crusade or the Rise of a New World, Vol. 12 (light novel) — Kei Sazane

THE AWAKENING OF A TRUE WITCHAlice pursues the Grand Witch Nebulis to the Empire to stop her rampage, but instead, she comes across her transformed older sister, Elletear. No longer human, Elletear has gained immense power from merging with the calamity at the planet's core, and she's set on destroying the Empire and the Sovereignty to achieve her dream of building a true paradise for witches. To prevent their nations from being reduced to ashes, Lord Yunmelngen, Iska, and Alice form a united front against Elletear and her knight, the traitorous Saint Disciple Joheim.