Luna ( ZEXAL ) Luna is a character appearing in the " Yu - Gi - Oh ! ZEXAL " manga . She is a Number Hunter whose objective is to eliminate the " Number s " . Design . Etymology . " Luna " translates to " moon " in a number of languages descended or borrowing from Latin , which features " lūna " . In ancient Roman religion and myth , is the divine embodiment of the Moon . In the manga , when Luna first meets Shark , she introduces herself as " a messenger from the moon " . Her Moon - style Deck , D - Pad and Duel Gazer refer to these facts . Abilities . Luna appears to be one of the few humans who can hold a " Number " card without being possessed by it . The pendant which she wears on her chest is possibly another of Dr . Faker ' s creations ; by pressing it , Luna was able to deflect Kaito ' s Photon Hand , as well as teleporting herself , Shark and Yuma in an instant to a far distance . Biography . Past . Luna previously worked on Dr . Faker ' s side , assisting him , but later betrayed him . She explained that he was once a good scientist whose goal was to develop an energy system which would not harm this world , but a certain incident made him change . In a flashback , she is seen watching when Shark was unfairly disqualified from a tournament , taking the blame for Kyoji Yagumo . She seemed to be working on the tournament ( which was sponsored by Mr . Heartland ) as part of its staff . Yu - Gi - Oh ! ZEXAL . One night , when Shark walked down an alleyway , Luna approached him , hiding her identity beneath a cloak . She soon reveals and introduces herself , and says that Shark can call her an emissary from the moon . Shark replies saying that looks like something straight out of a fairy - tale , but that he doesn ' t hate them though . Luna says that she doesn ' t have any rancor against him , but that she must face him . Then , they begin a Duel . The Duels ends quickly , with Shark defeating Luna in an O . T . K . After he wins , Shark asks Luna if she is alright ; she is impressed that Shark could Summon 3 Xyz Monsters at once during the Duel , and says that she wasn ' t wrong . Luna reveals she is a Number Hunter whose goal is to eliminate the " Numbers " , and says that Shark is the only one who can stop Dr . Faker , and for that he needs the power to do so - a " Number " . Shark declines , saying that he was already once possessed by a " Number " , and that he cannot do so . However , Luna replies that Shark knows how terrifying a " Number " can be , and that this is just why it would be okay . She further explains that " Numbers " are mirrors that reflect the hearts of the people , and at that time , his heart was full of darkness , but Yuma and Astral freed him from that darkness . She then gives Shark a , and says that it is a new power to protect him . After Shark defeated a store owner and he was confronted by Yuma , Astral , and Kaito , Luna , still cloaked , walked up , explaining that Shark was hunting " Numbers " because she told him the truth . She removed her hood , and greeted Yuma and Astral , calling it a pleasure to meet them ( and revealing that she could see Astral ) . Kaito recognized her , and she introduced herself , explaining that she used to assist Dr . Faker . Yuma was shocked , and asked why she was with Shark . Luna explained that she ' d asked Shark to obliterate the " Numbers . " Yuma protested that their power wasn ' t bad , and Luna responded that that wasn ' t the problem , their very existence was . If such a thing existed , people would fight over it , and that fight would destroy the world . Yuma protested that she didn ' t know that , but Luna replied that the fighting had already begun . She stated that Dr . Faker and Mr . Heartland planned to destroy the Astral World , as well as this one , asking Kaito to confirm it . She sadly remarked that for his brother Haruto ' s sake , he couldn ' t disobey those two , calling him a poor little puppet . Kaito angrily told her to be quiet , claiming that he didn ' t need her pity . He tried to take the duo ' s " Numbers " and souls with his Photon Hand , but Luna deflected the attack with her pendant , telling Kaito that that tactic wouldn ' t work on her , teleporting herself , Shark , Yuma and Astral out of the range of Orbital 7 ' s power at the outskirts of Heartland City . She then departed with Shark , telling him that it wasn ' t yet time to fight Yuma and Astral . Later , she and Shark stood on top on an unfinished building . Shark told Luna that thanks to her and the card she ' d given him , he saw something interesting , Yuma , Kaito and Astral . Luna stated that all the players were in place , but Shark replied that they were all in place except for " him " . He asked her to tell him the truth , which was why he ' d argeed to help her . Luna mused on Kyoji Yagumo , the one who changed Shark ' s fate . After Shark had remebered his time with Yagumo , Luna admits that when she saw the incident , she knew that he ' d taken Yagumo ' s crime upon himself when he ' d dropped the Deck he ' d stolen . When Yuma was challenged by Eviluder , she and Shark watched from the top of a nearby building , and she asked Shark if he was just going to sit and watch . Shark replied that then wasn ' t the time to move . Both then noticed Kaito and Orbital 7 on a nearby roof . When Eviluder called out his " Battle Eagle Token s " she noted that he was a powerful " Numbers " user . She was shocked when Yagumo , the new Numbers Hunter , appeared in the air above them , and after he punished Eviluder , declared the Numbers War and left , she left with Shark , telling him that they shouldn ' t do anything foolish then . Luna was with Shark when he defeated Shadow . Shark said that that didn ' t take much , with Luna telling him he is modest , and explained that he is too strong for his opponent . Shark explained that Kyoji isn ' t careless , and that he didn ' t see him challenging them directly . Luna said that Dr . Faker is a mad scientist bent on destroying both the Astral World and this one , and that Kyoji ' s heart must be deep in shadow if he is willing to help him . Curious , Shark said that he never asked Luna why did she help that mad scientist . She explained that Dr . Faker was once a good scientist whose goal was to develop an energy system which would not harm this world . Shark asked what happened then , with Luna explaining to him ( the explanation is not shown ) . Shark said " so that ' s Kaito ' s background . . . " , with Luna explaining that in order to stop Dr . Faker from destroying both the Astral World and this one , he would eradicate the " Numbers " , no matter who stood in her way . One day , Kaito appears to challenge Shark , who was with Luna . She watched as both Dueled , and called Shadow a cheater when he triggered his " trap " for them . When Yuma steps up to help Shark and Kaito , Luna is very surprised by his deed , and wondered if he was doing that for them because he was that confident or just an idiot . When Yuma was about to lose but still intended to give his own Life Points to protect Shark and Kaito , Luna thought that Yuma is an incredible boy , and wondered what kind of Duelist would go that far for someone else . After the Duels ended and Shadow was defeated , Yuma fainted . Shark told Luna they should take Yuma to their hideout , surprising Luna . He further explained that despite being his enemy , Yuma saved his life , so he couldn ' t just leave him there , with Luna agreeing . They then take Yuma to their hideout , where they explain to him the reason behind the Numbers War . Number Hunting . It is unknown how many " Number " cards Luna possessed . The only shown one was " " , which she gave to Shark so that he could stop Dr . Faker . Deck . Just a few cards of Luna ' s Deck were shown , but in her Duel against Shark , she used a stalling strategy combined with " Kachi Kochi Dragon " . Also , her monsters are themed after the legend , making a reference to her name and sobriquet .