Louise Françoise Le Blanc de la Vallière is the main female protagonist of the anime series 'Zero no Tsukaima' (The Familiar of Zero). A young noblewoman at the Tristain Academy of Magic, Louise is known for her poor magical skills and is mockingly called 'Louise the Zero.' Her life changes dramatically when she summons Saito Hiraga as her familiar. Despite her insecurities, Louise is fiercely determined, loyal, and passionate, playing a central role in the series' adventures and romantic developments.