After an unexpected death, a man finds himself reborn in a world completely unlike his own. Trapped in the body of an infant, he must navigate a new life in a medieval society where magic is real. Unable to act, he observes—learning the language, the customs, and most importantly, the existence of magic within himself. As he slowly uncovers the rules of this unfamiliar world, one thing becomes clear: if magic is real, he has to understand it.