After centuries of occupying various bodies, the magician had grown weary of the process. While wandering through the forest in pursuit of a new host, he happened upon a courageous young boy named Erena's companion, who had fought off multiple monsters while on the brink of death. The magician proposed a deal: if the boy surrendered his body, the magician would protect Erena. Unbeknownst to the magician, the boy was actually the exiled swordsman from the brave team.