Zero

Zero is a remarkably powerful witch who spent countless years secluded deep underground, dedicating herself to crafting a revolutionary tome known as the Grimoire of Zero—a work designed to make magic accessible to all. When the grimoire is stolen, she emerges from her isolation and sets out to reclaim it, hiring a fallen beastfallen mercenary as her bodyguard in exchange for his freedom. Despite her childlike appearance, her naïve unfamiliarity with the outside world, and her legendary obsession with food, Zero possesses extraordinary magical prowess capable of reshaping the fate of a war-torn land, driven by an unwavering ambition to protect the world.