Ars, the renowned prince of Karitz, known for his unparalleled wizardry, meets an untimely demise. In a desperate move, he employs reincarnation sorcery, rebirthing as Wals Sai, a slave possessing exceptional physical prowess. Serving as the princess's guardian in a modest realm, Wals emerges as an unrivaled slave, blending unmatched physical prowess with formidable magic to vanquish all adversaries.