Louise de La Vallière

Louise Françoise Le Blanc de La Vallière is the main female protagonist of the story. She is the third daughter of the Vallière family, an aristocratic family well known in Tristain. She is attending classes in the Tristain Academy of Magic, where she is known as Louise the Zero due to her zero success rate at spell casting and lack of any elemental affinities, a nickname acquired even before the first episode. Louise is lonely at school, as her family rival for centuries with the Zerbst family, a prominent Germanian family. Kirche von Alhalt Zerbst bullies her every opportunity she finds, as well as many of the other students torment her. But despite that fact, she endures strongly and pursues her improvement constantly to prove that she is not a zero.

Summary
Her poor magical ability is due to her alignment to void magic, a branch of magic which only four people can currently use, with the the last known user before them being from millenia ago, because of the branch's rarity the Academy does not have the ability to properly train Louise in it's use, unlike other students who can learn of their magics from teachers who share their alignments. Void magic itself seems to be mostly capable of only destruction, any time she ties to use it for anything else will result in an explosion. She has been known however to be able to do relatively simple spells, but use of her void magic requires a certain amount of time to build up before use.

She is very fond of her elder sister Cattleya, which she looks up to, but fears her oldest sister Éléonore, who is strict and always tells her to drop magic and get married to a fine noble.

As for her relationship with her familiar Saito, she literally treats him like a dog, as she hates him and is ashamed of him at first. She thinks of him as a failure of her magical aptitude. Every chance she gets, she punishes him when he disobeys, but as the story develops, she starts realizing that she cares about him not only as a familiar bounded to protect and be protected, but she starts to develop feelings for him. The more her feelings develop, the more she gets jealous of other girls and want to spend more time with him, she can also get jealous when faced with girl's more developed then her, which includes almost every girl she meets. At certain points, she has been known to worry about going too far and driving Saito away with her temper.

As a Noble, Louise defends her honor as a benevolent and "superior" person, like other Nobles. She states that is her responsibility as a noble, to make sure her highness the princess is safe and that her familiar's well being. Louise is a very stubborn girl. But, as Henrietta mentions, her heart is pure. Louise is also very persistent.

Season 4 she became a priestess, along with Tiffa, for the Popes anniversary enthronement. Later she is captured by King Joseph. After Joseph is killed, she and Saito are given a patch of territory to govern by Queen Henrietta.

Later, after retireving Saito and Tiffa from the elf lands of Neftes, during wich Saito became Tiffa's familliar as well, they then attend Tabitha/Charlotte's coronation as queen of Gallia. It is also during that time that she overhears the Pope saying that once Saito used up his Liveslatte power, he will die.

When they fought the Ancient Dragon, and fail to destroy it the first time, Louise sends Saito back to his world using the World Door. Later, Saito manages to come back with a fighter plane, and they manage to defeat the Dragon for good. After Saito sets her mind at ease (though his contract with Tiffa had run out, his contract with Louise kept him alive). With the Dragon dead, Saito then proposed to Louise and they were married. After the wedding Louise used her magic to go to Saito world to visit his parents.

Spells

 * Explosion
 * Dispel
 * Illusion
 * Teleport (only able to teleport to as far as she can see; but is capable of being casted rapidly unlike Illusion. The distance depends on how much of the incantation she chants before using it)
 * World Door (creates a magical door between one place and another)

Titles
Louise is the third daughter of the Duke of La Vallière and Karin, Duchess of La Vallière. She later becomes a lady-in-waiting for Henrietta, Queen of Tristain. After Louise's void was revealed to her family, Henrietta made Louise her heir, thus the Crown Princess of Tristain.

Name
Louise is named after (Françoise Louise de La Baume Le Blanc), a mistress of  from 1661 to 1667.

Also known as
Void Bearer
 * Zero Louise
 * Louise the Zero (by her classmates especially Kirche)
 * Little Louise (by her sisters)
 * My Louise (by Saito)
 * Little Runt Louise (by Éléonore)
 * Crybaby Louise (once by Éléonore)
 * Louise Françoise (by Henrietta)
 * Chibi louise in fansubs(by Éléonore)

 Zero no Tsukaima&gt;&gt;Characters