Our Last Crusade or the Rise of a New World Novel Volume 12 was written by Kei Sazane with illustrations by Ao Nekonabe.

Alice gives chase to Grand Witch Nebulis and seeks to put a stop to the rampaging founder. She comes across her transformed older sister Elletear who has become their enemy. Now, a united front will stand against Elletear and the traitor Joheim.