Race: Human Power: Magic First Appearance: Volume 9
A cute, middle-school age-looking foreign girl with a slim body, shoulder-length blonde hair and blue eyes. Her outfit consists of a sorceress-like dress with a huge blue hat with a black bow and yellow stars and matching cape with pink flowers and a white interior. In Volume 11, she changed her dress to a Japanese school girl uniform consisting of a grey blazer with blue plaid accents over a white dress shirt with a black tie, a black skirt, and black shoes while retaining her trademark hat and cape.
Le Fay is a happy and outgoing young woman. She is also shown to be very polite, addressing everyone, enemy or friend, with the honorific "sama".
Le Fay was previously part of the Magician Association, "Golden Dawn" where she acquired all her spells, including forbidden ones. She then joined the Khaos Brigade at some point before the start of the series, probably around the same time her brother joined.
She appears in Volume 9, summoning Gogmagog to annihilate the monsters created by Annihilation Maker under Vali's command. She was also responsible for luring the original Sun Wukong to Kyoto to assist Issei and his friends.
She reappears in Volume 11 alongside Kuroka and Fenrir as Ophis' bodyguard who went to the Hyoudou Residence. When the team is attacked by Cao Cao and Georg, she and Kuroka activate a magic circle to switch Vali and Fenrir's position, allowing Vali to appear and fight Cao Cao. Despite these attempts, both teams still lost against Cao Cao and Georg. She later gives the Excalibur Ruler to Irina Shidou for repairing the Ex-Durandal, creating a transportation magic circle and taking Xenovia and Irina with her.
At the beginning of Volume 12, she is seen hiding in the Gremory Palace with all her Vali Team teammates while waiting for their leader to recover. She is later seen in the Realm of the Dead, attacking the Grim Reapers under Hades.
She, along with Kuroka, later move into the Hyoudou Residence in Volume 14 as semi-permanent residents, apologizing to the house owners every time Kuroka made a mess out of it. After Issei approached her and Kuroka while they were reading a book, Issei asked her if she could teach him about magic/demonic powers and how to make more use of his demonic powers, as well as how to increase it.
She is a Magician and as such has magical abilities, ranging from magical attacks to teleportation circles. She can also summon the golem, Gogmagog during battle.