Luxu

Luxu is a Keyblade Master who appears in Kingdom Hearts χ. He is an apprentice of the Master of Masters.

Before Kingdom Hearts Back Cover
Luxu is given a Keyblade forged from his own heart by the Master of Masters, who takes Luxu, Aced, Ava, Gula, Invi and Ira, as his apprentices. After Luxu passes the Mark of Mastery exam, he achieves the rank of Keyblade Master alongside his fellow apprentices.

Kingdom Hearts Back Cover
Meeting with Luxu alone in the Foreteller's Chamber, the Master bestows him with the No Name Keyblade. Luxu addresses the Keyblade by the "Gazing Eye", which is encased within it, though the Master corrects him about its name, instead addressing it as "No Name". The Master tells him that the Gazing Eye within the Keyblade belongs to him, much to Luxu's disgust, and that Luxu's role is to pass down No Name to his disciple, and him to his, so that the Gazing Eye can see the future. Luxu realizes that the Book of Prophecies is the result of him successfully completing his role.

The Master informs him that he will not be receiving a copy of the Book of Prophecies like the other apprentices, as the Master does not want to risk creating any temporal paradoxes. Luxu voices his concerns about fulfilling his role alone, asking what will happen to the Foretellers. The Master assures him not to worry about them, as it is important that Luxu, the No Name Keyblade, and a mysterious box engraved with the words "χ Super" stay out of sight, cautioning Luxu that his role is to simply watch things unfold between the other apprentices. When Luxu inquires on the box's contents, the Master explains that it must remain a secret, as well as the fact that Luxu is never allowed to open it. With Luxu's brimming curiosity, the Master reveals its contents to him, which shocks Luxu and makes him question the Master's reasoning for placing what he had inside the box. The Master merely teases that Luxu will have to wait and see. Luxu then sets out to fulfill his role, disappearing as he travels through the Keyblade Graveyard with the mysterious box and No Name in hand.

Kingdom Hearts χ
With the Keyblade War approaching fast, Ava sees no other way to avert the cataclysmic event without the Master's aid. Knowing well that no one has been able to find the Master since his disappearance, Ava seeks out Luxu, aware he is the only person who might have knowledge on the Master's whereabouts. Eventually, Ava finds Luxu on the outskirts of Daybreak Town and begins to interrogate him. Luxu simply claims that he is meant to continue on into the future written in the Book of Prophecies and see through the end of the world. Luxu surmises that Ava wants to avoid the Keyblade War and that she'd sought him out in order to find the Master, but Luxu deems her efforts as useless. Addressing the mystery that is the Lost Page, Luxu explains to Ava that it is a prophecy that the Foretellers don't know and that it is his mission to inherit said secrets, which is why he must pass on through the world just as the Lost Page dictates, as the Master's intentions are not to ensure the world's longevity, but to watch Luxu carry out his role.

Ava questions what is written on the Lost Page and begins to suspect Luxu of being the traitor. Summoning his Keyblade, Luxu proceeds to tell her the truth about the traitor, much to her disbelief. Luxu asks Ava if she believes that she can stop the Keyblade War when it is unavoidable. Ultimately, Luxu states that even if there was another answer, that would still be the result of the battle and ponders if the Master would rather know how his disciples will guide the keys than the fate of the world. Ava, refusing to believe that the Master would choose them over the world, accuses Luxu to be taking his advantage of the Master's will. Drawing her Keyblade, Ava attacks Luxu, and the clashing of their Keyblades sends a ripple effect throughout Daybreak Town, which tolls the bell that signifies the beginning of the end.

Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-
With the No Name Keyblade in his hands, Luxu silently observes the conclusion of the Keyblade War, granting the Master of Masters knowledge of the event.

Appearance
Like the Master of Masters, Luxu wears a black coat.

Personality
Contrary to the Master of Masters, Luxu is quiet and reserved.

Abilities
Luxu is a Keyblade Master who inherits the No Name from the Master of Masters.

Etymology
Luxu's name is derived from the word , which means "lust" in Latin.