Nataku
, 那吒
Nataku, an androgynous clone with extreme psychic abilities, was born from genetic material of Tōjyō Kazuki, a deceased granddaughter of the president of Tōjyō Pharmaceuticals, and her father Masaki. The Chairman Tōjyō sent Nataku to retrieve the Shinken, as he wished to destroy it so that Nataku would not become entangled in matters related to the Promised Day. While attempting to steal the Shinken, Nataku mortally wounded Kyōgo, Fūma's father, who was trying to protect it. Despite being haunted by memories of its previous life as Kazuki and resembling her father, Nataku follows Fūma unconditionally. This is depicted in Tsubasa Reservoir Chronicle.
Nataku is one of the fighters of the City Hall faction. Unlike in X, he is a mentally developed adult and takes care of Kazuki, alternate version of Xs Kazuki (who substitutes Seishirous place)
