Seeking guidance from the church, Annelotte unwittingly angers the overzealous Inquisitor Sigui and is challenged to a duel. Annelotte must fight for her life as being declared a heretic by Sigui automatically comes with a sentence to be burned alive by holy fire. Fortunately, just when all hope is lost an octopus comes to the rescue. Elsewhere, Iron Strategist Ymir sets her evil plan into motion.