 "The Familiar of Zero" follows the adventures of Louise and Saito as they help their classmates and friends, while occasionally blundering into situations where they risk their lives to save one another and Tristain.Saito tries to find a way to get back to Japan, but he also gains a mysterious power that allows him to wield swords and other weapons to perform heroic feats.They also eventually learn the truth behind Louise's magic inabilities.