Editing Xion

{{game|358|KHC|RCO|BBS|FMB|DDD|DHD|KH3|3RM|MOM|FA}}
{{Suite}}
{{Youmay|the character|[[Xion (chapter)|the manga chapter]] or [[Musique pour la tristesse de Xion|the musical theme]]}}
{{Character
|name=Xion
|fr=Xion
|es=Xion
|de=Xion
|image=[[File:Xion KHIII.png|350x400px]]
|type=Replica
|spec=CharacterBoss
|katakana=シオン
|romaji=Shion
|orgnum=XIV
|orgother=No. ''i''<!--This should always be kept as a lowercase "I" in italics, which stands for "imaginary unit" as seen here: http://kh2.co.uk/image.php?view=kh358/images/358report.png-->
|charworld1=Castle Oblivion
|charworld2=The World That Never Was
|orgweapon=[[Keyblade]] ''([[Replica Kingdom Key]])''
|orgatt={{nihongo|Light|光|Hikari}}
|orglimit=Black Hole
|game1=Kingdom Hearts 358/2 Days
|game2=Kingdom Hearts coded
|game3=Kingdom Hearts 3D: Dream Drop Distance
|game4=Kingdom Hearts III
|game5=Kingdom Hearts Melody of Memory
|java=Risa Uchida
|enva=Alyson Stoner
|envan=(''Days'' and ''KHIII'')
|enva2=Hayden Panettiere
|enva2n=(''BbS'' and ''KH3D'')
|358normalname=Musique pour la tristesse de Xion
|358normalfile=Musique pour la tristesse de Xion (OST) KHD.ogg
|358battlename=Vector to the Heavens
|358battlefile=Vector to the Heavens (OST) KHD.ogg
|s1= 
|journal358='''HD 1.5 ReMIX'''<br>The fourteenth member of Organization XIII. Like Roxas, she wields a Keyblade. Through interactions with Roxas, she forms her own identity and develops a friendship with Roxas and Axel.
|journalDDD=Organization XIII's mysterious fourteenth member. She was an experimental replica used to "catch" Roxas's memories and create a Keyblade wielder for the Organization. In the end, she was erased from existence and returned to Sora where she belonged.
|journalUX='''SP Xion/Illustrated Xion'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>The 14th member of Organization XIII. She develops a friendship with Roxas and Axel.<br><br>'''Roxas & Axel & Xion'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>After a mission, these three friends like to relax over sea-salt ice cream.<br><br>'''Xion A'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>The 14th member of Organization XIII. She, Roxas, and Axel are good friends.<br><br>'''Final Boss Xion'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>The 14th member of Organization XIII. She battles Roxas in this form.<br><br>'''HD Xion [EX]'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>The 14th member of Organization XIII. She's good friends with Axel and Roxas.
|journalUNC='''HD Xion'''<br>KINGDOM HEARTS 358/2 Days (2009)<br>The 14th member of Organization XIII. She develops a friendship with Roxas and Axel.
|journalKH3=The former Organization XIII's mysterious fourteenth member. She was an experimental replica used to siphon Sora's memories out of Roxas, and this allowed her to become a Keyblade wielder. Xion grew to question the meaning of her existence, and ultimately elected to return her memories to Sora and disappear.<br><br>Master Xehanort was using Xion to fill a spot in his new Organization XIII, but when she was confronted by her best friends Axel and Roxas, her memories came back to her and she chose to become a guardian of light.
}}
{{Q|Who am I? What am I... here for?|Xion}}
'''Xion''' is the Rank XIV member of the original [[Organization XIII]] as well as a member of the [[real Organization XIII]]. She debuted in ''[[Kingdom Hearts 358/2 Days]]'' as one of the game's main characters.

She is not a normal [[Nobody]] and only a nominal member of the Organization. Because of this, she does not have a throne in [[Where Nothing Gathers]], nor does she have a title or a type of Nobody to control. Instead, she is an imperfect [[replica]] created from [[Sora]]'s leaked [[memories]] as a fail-safe in case both Sora and [[Roxas]] proved to be useless to Organization XIII's plans. Similar to [[Riku Replica]], Xion was created by the Organization's scientist [[Vexen]]. While the nature of her existence enables her to use the [[Keyblade]], Xion's existence also halts Sora's progression of regaining his memories to fully awaken while in his [[pod]], something which [[Naminé]], [[Ansem the Wise|DiZ]], and [[Riku]] recognize.

As Sora's memories are the basis of her being, Xion initially looked like a hooded doll, but her physical appearance eventually changes depending on who is viewing her and who they have connections with. The majority of the time, she resembles [[Kairi]], who was Sora's strongest memory at the time of her birth, though [[Xigbar]] sees her as [[Ventus]], and [[Xemnas]] sees her as [[Sora]]. As Naminé stated while talking with Riku, Xion's face was originally blank, until Sora's memories found their way into Xion while she gained an identity.

==Story==
===''Kingdom Hearts 358/2 Days''===
{{Q|This puppet will have to play her part.|Xion accepting what she is.}}
[[File:Meet Xion 01 KHD.png|thumb|left|Xemnas introduces a hooded Xion into Organization XIII.]]
A week after Roxas joins Organization XIII, Xemnas introduces Xion to the other members. After looking at the other members, she smiles up at Roxas, puzzling him. As Roxas departs for his first training mission, he spots Xion shyly watching him nearby, and [[Saïx]] formally introduces her to [[Axel]] and Roxas.

When Axel is sent to [[Castle Oblivion]], Xemnas entrusts Roxas with the task of looking after Xion, who quickly bonds with him. After only a couple of missions together, Xion removes her hood, surprising Roxas by her gender. She reveals her ability to wield the Keyblade to him and looks after him when he falls into a coma for several weeks in conjunction with Sora being put to sleep to regain his memories. Xion visits [[Destiny Islands]], collects the seashells there including a [[Thalassa Shell]] and places them on Roxas's bed. When Roxas wakes up from his coma, Xion is happy and gives him a shell to listen to on the clock tower.

After discovering that Sora and Riku had slain all of the Organization members (except Axel) that were in [[Castle Oblivion]] at the time, Roxas, Axel, and Xion all begin spending more time together as per Roxas's suggestion and become fast friends, such as enjoying [[Sea-Salt Ice Cream|sea-salt ice cream]] together. After Xion asks Axel to be her friend, and he accepts, he stops seeing her as a hooded figure and begins seeing her as the black-haired girl that Roxas sees. Unfortunately, Xion can not summon the Keyblade, although she regains the ability on Day 96.

[[File:Xion's Defeat 01 KHD.png|200px|thumb|Xion is defeated by Riku at Beast's Castle on Day 149.]]
A series of events begin to split the trio apart: While DiZ and Naminé oversee the restoration of the sleeping Sora's memories (moving him from Castle Oblivion to [[Twilight Town]]), Roxas begins to experience the process for himself, and starts to ponder over how he is able to wield the Keyblade and doubt the Organization's motives; Axel is reprimanded by their superiors for placing his friendship with Roxas and Xion before the Organization's goals, and Xion is thrown into disarray after a confrontation with Riku at [[Beast's Castle]], who questions who she is and why she wields the Keyblade, especially after he sees her face, although he lets her go.

On Day 150, she was reprimanded by Saïx for failing to defeat an impostor which greatly upsets her. The next day she reveals to Roxas the dreams she's been having and her confusion on her role in the Organization.

On Day 171, Xion failed another mission, putting her in a coma. Roxas then begins giving seashells to Xion. After Xion has a dream, or more accurately, a flashback of Sora disappearing in front of Kairi at Hollow Bastion, Xion wakes up beside Roxas on Day 193.

On Day 225, Xion discovers the Organization's computer and reads records about her existence.

On Day 255, Xion visits Castle Oblivion and crosses paths with Axel who is on a mission. She learns who she is and escapes the Organization.

On Day 276, Xion decides to visit Destiny Islands again. She is overwhelmed by memories and faints. She is saved by Riku and he tells her of his current condition. He explains to her that his friend Sora needs Xion to return him his memories if he is to ever awaken. She doesn't understand why she has Sora's memories to begin with, causing her to become torn between staying with her friends in the Organization or leaving to merge with Sora as Riku suggests. Xion travels with Riku for several weeks, eventually leaving him to stay at DiZ's base in Castle Oblivion.

[[File:Xion's Capture 01 KHD.png|thumb|left|200px|Xion before being captured by Axel at Twilight Town.]]
On Day 298, Xion is found by Roxas in Twilight Town and he invites her to return "home" with him, but she says she is unable to. Xion tries to flee again, but Roxas stops her, prompting her to point her Keyblade at him. Axel appears and fights Xion, knocking her unconscious, forcibly returning her into the Organization.

On Day 321, Naminé's attempts to restore Sora's memories are soon halted when Xion starts absorbing them faster, causing Roxas to weaken while she becomes stronger, as Xemnas intended. Later, Xion informs Axel of this strange situation and he tells her she could think of an answer to this problem herself. She also tells him she saw a boy today who looks just like Roxas, implying she saw Sora somehow.

[[File:Resolve 01 KHD.png|thumb|Xion takes on Ventus's appearance through Xigbar's eye.]]
On Day 352, after being tricked into fighting Roxas by Saïx at [[Halloween Town]], Xion decides to take Riku's advice and leaves the Organization. The next day, Xion fights [[Xigbar]] in [[Wonderland]] who perceives her as [[Ventus]] and knocks him unconscious. She unhoods in front of Axel who was also on the mission, shocking him, and asks him to let her go, which he agrees to, and she retreats through a [[Corridor of Darkness]]. Xion talks to Riku at Beast's Castle, wondering what she should do next, and he implores her to find Naminé in Twilight Town for answers.

On Day 356, Xion meets with Naminé in Twilight Town's [[Old Mansion]] in order to learn about her nature and how it affects Roxas. Naminé informs her that she is a replica made from Sora's memories, rather than a Nobody and that this means that reuniting with Sora will cause her to not only no longer exist, but also be completely forgotten. Xion persists in her commitment, certain that it's where she belongs but is interrupted by DiZ, intruding in the conversation to warn them that they have been located by a member of the Organization. Xion goes to investigate and finds Axel, upset that he has been tasked with retrieving her, and conversely that letting her reunite with Sora as she wants would also result in her termination. Xion explains that she is committed to her path, and asks Axel "Please don't hold back". In response, he promises that he will "always be there to bring [her] back". Axel is able to subdue Xion after an intense battle, and limps back to the castle with her unconscious body in tow, fainting at the entrance. She is then found and dragged away by Xemnas.

[[File:Tears 01 KHD.png|thumb|200px|left|Xion shows Roxas she has nearly become a complete copy of Sora.]]
The next day, Roxas finds Xion at the Twilight Town train station, and after she reveals her altered, Sora-like form to him, she explains that she has been compelled by Xemnas to absorb Roxas and become a "full" Sora, which would, in turn, prevent the real Sora from ever waking. Knowing that Roxas will disappear if she continues to exist, she attacks Roxas to have him destroy her, saving himself and thwarting Xemnas's plan. She then transforms into a monstrous version of Sora using Xemnas's devices, transporting them to [[Wonderland]], Halloween Town, and [[Agrabah]], before returning to Twilight Town. In each world, Xion absorbs power from the "devices" that were placed there, which contain memories of Sora's battles in each world.

After a long and grueling battle, Roxas manages to defeat her, while she regains her original appearance in his view. He doesn't seem to recall who she is, though she assures him that he will be better off now. While Roxas cradles her in his arms, she tells him that she chose to sacrifice herself to slow down Xemnas's plans, asks that he prevent Xemnas from obtaining [[Kingdom Hearts]], and tells him that she is glad that she met him and Axel. As Xion's [[body]] crystallizes and disintegrates, Roxas suddenly remembers her name and holds her hand until she disappears completely, leaving behind a single Thalassa Shell.

[[File:Xion's End 01 KHD.png|thumb|200px|Xion spends her last moments in Roxas's arms.]]
Though Naminé states that everyone's memories of Xion will vanish as she does, Roxas, Riku, Xemnas, and Saïx manage to retain some memories of her into the next day. By then, Roxas has returned to [[The World That Never Was]] in order to set Kingdom Hearts free, which he hopes will reunite him with his lost friend. However, he is being stalked by a swarm of [[Neoshadow]] [[Heartless]], as well as a determined Riku, who has arrived to capture Roxas to finish Sora's memory restoration. Riku looks down upon the Nobody as Roxas starts his path up the skyscraper. When Xion's lingering influence makes Roxas throw his [[Oblivion]] Keyblade to Riku, she is able to communicate to Riku, begging him to stop Roxas before he can reach Xemnas, because she believes Roxas is not strong enough to face him yet.<ref>'''''[[Kingdom Hearts 358/2 Days Ultimania]]''''', '''Interviewer:''' "When Roxas tries to do what Xion has asked of him, Riku hears Xion's voice asking him to stop Roxas. Why?" / '''Tetsuya Nomura:''' "First, we have to look at things in order. First, the reason why Roxas throws a Keyblade to Riku, and we then see a vision of Xion, is that there is a small remaining part of Xion in Roxas that wants to stop him, and makes him take those actions. The name of the Keyblade that is given to Riku suggests that it has something to do with Xion. Xion wants Roxas to set Kingdom Hearts free but doesn't want him to face Xemnas right now. She sees that he would most likely lose. So she begs Riku to stop him." [https://www.khinsider.com/news/358-2-Days-Scenario-Interview-894 Translation via Krexia and Lissar].</ref> With the message, Riku receives memories of the time he spent with Xion, shocking him for a moment, but they begin to fade as he reaches the ground.

When Roxas and Riku finish eradicating the Heartless, they turn on each other for a battle. By this time, it is a struggle for Roxas to even remember Xion's name, and all he knows about her is that he wants her back. While Roxas is able to knock Riku down first, Xion then projects her words to Riku, somehow telepathically, to stop Roxas at any cost, and so he does once he removes his blindfold and transforms into [[Riku-Ansem]]. Unconscious, Roxas hears Xion talking to him through his mind, telling him not to be sad, as she has become one with him and Sora, and that soon Roxas will also join them. Despite the fact that memories of Xion have been forgotten by everyone, she tells him that she still has her own memories, so she doesn't mind that he has forgotten her, as she won't forget him or Axel. As Riku knocks him out, Roxas's last memories of Xion fade away.

===''[[Kingdom Hearts coded]]''===
In the Data Castle Oblivion, [[Data-Naminé]] reveals to [[Data-Sora]] and [[Mickey Mouse|King Mickey]] that Xion is one of the people that, while gone, is still connected to Sora's [[heart]]. Data-Sora wonders who she is and remarks that she feels familiar and that something terrible must have happened.

===''[[Kingdom Hearts 3D: Dream Drop Distance]]''===
[[File:Naminé and Xion 02 KH3D.png|thumb|left|Sora meets Xion for the first time.]]
After Sora catches up to Naminé in his dream in The World That Never Was, she suddenly transforms into Xion. Xion does not respond to Sora's questions, merely looking at the floor with a look of sadness on her face. Although Sora doesn't recognize her, he suddenly sheds a tear, to his own surprise and confusion. Xion raises her hood and runs off.

After catching up to Xigbar, Sora comments on how Axel, Roxas, Naminé, and "that other girl" all must have had hearts. When Sora reaffirms to Xigbar that his strength comes from his friends, Xigbar sees an image of the many individuals connected to Sora standing behind him, including Xion. Unnerved, Xigbar leaves Sora to Xemnas and leaves.

After Riku dives into Sora's heart and defeats the [[Armored Ventus Nightmare]], he appears on a memory of the Destiny Islands. After meeting Roxas and Ventus, who each ask him a question, Riku finds Xion sitting on the [[paopu]] tree, intially mistaking her for Sora from a distance. He does not remember her and questions who she is. She then asks him what he wishes, and disappears once he answers.
{{-}}

===Between ''Kingdom Hearts 3D: Dream Drop Distance'' and ''Kingdom Hearts III''===
Saïx found Vexen's notes on replica No. i, sparking his memory of Xion; thus her revival was added to his atonement. While meeting at the Keyblade Graveyard with [[Master Xehanort]], Saïx recommends reviving Xion to serve as Sora's replacement in their ranks and moves to recruit Vexen. Due to acquiring data on her after the events of the [[Mark of Mastery exam]], Xion was not present among the other members of the [[real Organization XIII]] when they appeared before Riku and [[Mickey Mouse|Mickey]]

===''Kingdom Hearts III''===
{{Q|"We need him alive. You know that."|Xion acting as a [[Seeker of Darkness]]}}
Despite being erased from memory, subconscious memories of Xion begin to stir within [[Lea]] as he trains with Kairi and he often catches himself staring at her because their resemblance. At one point, he presents Kairi with some sea-salt ice cream to celebrate summoning their Keyblades. Kairi gets excited to duel in the ring, telling Lea to promise not to hold back; however, it stirs memories of his forgotten friend, causing Lea to drop his ice cream in shock before shedding a tear.

While traveling in the [[Gummi Ship]], Sora and company are contacted by [[Ienzo]], who informs them Sora has three unique hearts on his own. While they agree that the first two hearts belong to [[Roxas]] and [[Ventus]], they are unable to identify Xion as the owner of the third due to both a lack of memories and any data relating to her. While Sora continues his journey with this knowledge, [[Young Xehanort]] and later [[Dark Riku]] conducted experiments into the nature of the heart in the worlds of [[Toy Box]] and [[San Fransokyo]]. These experiments are related to whether or not a version of Xion can safely inhabit one of Vexen's refined replicas.<ref>'''''[[Kingdom Hearts III Re Mind]]'', Saïx''': "The being before you was recreated...from the records that were left by Vexen, and the many experiments performed by Young Xehanort."</ref>
Eventually with the aid of these experiments and Vexen's recovered data, a past version of Xion's heart is able to be placed within a replica body and she takes the thirteenth slot in the [[real Organization XIII]].<ref>'''''[[Kingdom Hearts III Ultimania]]'', p. 683'''; "A replica containing "Xion's heart from shortly after she joined Organization XIII.""</ref> Though she is without any memories of her time spent with Roxas and Axel, and thus compliant to the Organizations goals, similar to her state after her original recruitment.
[[File:The Last Light 03 KHIII.png|thumb|200px|left|Xion confronts Lea as a vessel of Xehanort]]

On the eve of the final battle, Saïx tracks Lea down at the Clock Tower and points out that Lea has bought an extra ice cream bar, Lea's subconscious memories of Xion causing him to act without notice.

[[File:You Admit It 01 KHIII.png|thumb|200px|Xion, Roxas, and Lea tearfully embrace as they are finally reunited.]]
At the [[Keyblade Graveyard]], Xion accompanies the real Organization when they confront the [[Guardians of Light]] and pairs with Saïx to fight Lea and Kairi. Saïx subtly tries jogging Xion’s memory by saying [[Axel]] and [[Roxas]]’s names and informs Axel that she had been forgotten, but was recruited using Vexen's data. When Xemnas appears and attempts to kill Lea, Xion intervenes. Stirred by this, Roxas’s heart calls out to her via Sora, causing Xion to waver further. As Xion was designed to absorb the abilities and memories of Sora and Roxas, she is able to absorb the present-day version of her own heart and displace the past version back to its proper time.<ref>'''''[[Kingdom Hearts III Ultimania]]'', p. 683'''; "Xion's heart is absorbed into her body which has the ability to absorb the powers of Sora and Roxas."</ref> With the release of Xion's heart, the memories of those who knew her return, causing Lea to remember their friendship when he was Axel. Shortly afterward, Xemnas’s imperilment of Xion and Sora triggered Roxas’s heart to fly to his waiting vessel, allowing him to stop Xemnas from executing her and Lea. Xion, Roxas, and Sora then battle and defeat Saïx.

[[File:Ending 02 KHIII.png|thumb|200px|left|The trio sit together on the Clock Tower once more.]]
After Master Xehanort opens [[Kingdom Hearts]], Xion arrives with Lea, Roxas, Ventus, [[Aqua]], and [[Terra]] to help [[King Mickey]] and Riku hold off its power while Sora sends Master Xehanort to [[Scala ad Caelum]] with the intent of keeping him from using Kingdom Hearts. She assures Sora that Kairi would be safe. 

However, the [[Replica Xehanort]]s, which Sora had just fought, emerge from Kingdom Hearts and pull the Guardians into the sky where they are cornered by them. The guardians manage to triumph over the Replicas but end up getting sucked up into the multiple [[keyhole]]s created from Kingdom Hearts. 

Despite this, future Sora manages to free Xion and the others by connecting their bonds, allowing them to play a part in fully restoring Kairi to normal. Once Sora and Kairi defeat the Armored Xehanort replica, the Guardians of Light all rejoin at the battlefield to finish him off. Everyone aims their Keyblades at Xehanort and fire off a large beam of [[light]] that manages to pierce Xehanort, destroying him for good. Once the battle is over, the heroes all travel to where Sora's heart is located, which is Scala ad Caelum.

After Sora, [[Donald]], and [[Goofy]] defeat Master Xehanort, Xion and the other Guardians help close Kingdom Hearts and return to the Keyblade Graveyard

In the aftermath, Xion, Roxas, and Lea return to [[Twilight Town]] at the clock tower to spend time together once again. Xion also becomes friends with [[Isa]], [[Olette]], [[Hayner]], and [[Pence]] once they join the trio on the clock tower. 

Riku arrives in the [[Highwind]] and takes them to the Destiny Islands for a party celebrating their victory over Xehanort. Xion is shown collecting seashells with Naminé and watches as Kairi shares a moment with Sora before he fades away. 

After one year passes by, the Twilight Town crew are revealed to be studying Roxas and Xion's memories in hopes of finding the whereabouts of the missing Sora.

==Other appearances==
===''[[Blank Points]]''===
After Aqua speaks with Ansem the Wise about Sora, Xion is seen sitting atop the Twilight Town clock tower, eating sea-salt ice cream with Roxas and Axel. Then, Xion and Roxas say Sora's name while watching the sunset together.

===''Super Smash Bros. Ultimate''===
In ''{{ssb|Super Smash Bros. Ultimate}}'', Xion appears in the 4 o'clock and 5 o'clock Stations in the [[Dive to the Heart]] sections of the {{ssb|Hollow Bastion}} stage and as an obtainable {{ssb|spirit}} in Sora's {{ssb|DLC Spirits (mode)|Spirit Board}}. In her {{ssb|Spirit#Spirit Battles|Spirit Battle}}, she is represented by {{ssb|Robin (SSBU)|Robin}}, being fought on the Shine Gate in {{ssb|Delfino Plaza}} which represents the Twilight Town clock tower. She is accompanied by two other Robins, one starting with a {{ssb|Killing Edge}} and the other being larger and continuously using {{ssb|Arcfire}}, representing Roxas and Axel respectively.

==Design==
Xion strongly resembles Kairi, sharing her blue eyes and facial features. Xion's hair is a similar style to Kairi's, being short like Kairi's in ''{{c|Kingdom Hearts|game}}'', with her bangs parted on the left like Kairi's in ''{{c|Kingdom Hearts II}}'', though with some strands tucked behind her right ear. Xion's hair is also darker than Kairi's; it appears black in her original appearance and dark brown in ''Kingdom Hearts III''.

As part of the Organization, Xion wears a body-length [[black coat]], with slightly pointed shoulders and closer-fitting sleeves than standard. She also has black gloves and slightly-pointed heeled boots.

During her time as a vessel of [[Xehanort]]'s heart and a member of the [[real Organization XIII]], Xion's eyes are golden.<ref>[https://i.imgur.com/vflxBck.png|https://i.imgur.com/vflxBck.png Hooded Xion Model's Gold Eyes]</ref> While her hood is up, her face is heavily dimmed.

[[File:Ending 07 KHIII.png|thumb|200px|Xion in her new outfit at the end of ''Kingdom Hearts III''.]]
At the end of ''Kingdom Hearts III'', Xion wears a black sleeveless collared shirt with ruffles around the armholes and two columns of buttons down the front. She also wears a buckled black belt and a short white pleated skirt. Her lace-up boots are mostly black with a thick beige cuff, and have studded black buckles. This outfit is similar to Kairi's outfit.

In the final battle between Xion and Roxas, Xion wears a suit similar to [[Keyblade Armor]], with armor colored and shaped similarly to Sora's hair and clothing in ''Kingdom Hearts II'', with the Nobody sigil on its chest and a similar, six-pronged symbol over the visor. Red, flame-like metal wings and yellow streamers extend from the armor’s back.

As a result of her being crafted imperfectly from Sora's memories, Xion's appearance in her original Replica body is somewhat unstable, as most of the Organization, such as Saïx and, early on, Axel, view her as a hooded puppet, while to Xigbar she appears identical to Ventus. Xemnas, on the other hand, sees her as a perfect copy of Sora. In a nightmare, she also appears as Roxas, Riku, and Sora. During her final confrontation with Roxas, she also initially assumes Sora's appearance as well as having her black cloak's footwear be changed to match Roxas's.

{{canon
|In the [[Kingdom Hearts 358/2 Days (manga)|manga]], Riku and Naminé occasionally see Xion as Kairi, while in the [[Kingdom Hearts (novels)|novel]], it is implied Riku sees her briefly as Sora at the Destiny Islands.<ref>'''''[[Kingdom Hearts (novels)#Kingdom Hearts 358/2 Days|Kingdom Hearts 358/2 Days novel]]: '''''"Feeling uneasy, Riku lifted his blindfold just a bit to look at her. And just for an instant…she looked like someone else. Not Kairi or Naminé—but ''him''."</ref>
}}

Tomoco Kanemaki, one of ''Kingdom Hearts 358/2 Days''<nowiki>'</nowiki>s scenario writers and the writer of the [[Kingdom Hearts novels|''Kingdom Hearts'' novels]], is responsible for Xion having black hair.<ref>'''''[[Kingdom Hearts 358/2 Days novel]] — Afterword''''', '''Tomoco Kanemaki:''' "Xion's hair color is the result of a personal request of mine—I asked Mr. Nomura to draw a girl with black hair. I really took full advantage of the job perks."</ref>

Xion's name was coined by Tomoco Kanemaki. Tetsuya Nomura took a liking to it and notes that it has many meanings. Xion's name contains the Japanese words for {{nihongo|"tide"|潮|shio}}, fitting the oceanic naming theme of Kairi and Naminé, and {{nihongo|''{{w|Aster tataricus}}''|紫苑|shion}}, which, according to {{w|Hanakotoba|Japanese floriography}}, means "I won't forget you" or "remembrance". It is also revealed within the [[Secret Reports]] that her "original name" was "No. ''i''", her ID as an experiment of the [[Replica Program]]. The "''i''" used here is the {{w|imaginary unit}}.<ref>'''''[[Kingdom Hearts 358/2 Days Ultimania]]''''', '''Yukari Ishida:''' "Xion's original name, "No. ''i''", was named after a "non-real" figure in mathematics for expressing imaginary numbers. Also, when you write Kairi (海, ''Kai''), Naminé (波, ''Nami''), and Xion (潮, ''Shio'') in kanji, all three of their names are words related to the ocean." [https://www.khinsider.com/358-2-days/interviews/kingdom-hearts-358-2-days-ultimania Translation via Krexia and Lissar].</ref><ref>'''''[[Kingdom Hearts 358/2 Days novel]] — Afterword''''', '''Tomoco Kanemaki:''' "The ''Ultimania'' and other sources have already touched on this, but Xion's name comes from ''shio-ne'', the sound of the tide, to echo Naminé's (the sound of the waves). It also serves as an anagram for the imaginary number, No. ''i'', with an ''X''. And in the language of flowers, ''shion'' (Tartarian aster) means "I won't forget you.""</ref>
{{-}}

==Personality==
{{Q|I love Roxas and Axel. I'm sure Saïx would scoff at that. Call it a trick of my artificial memories. But the time I spent on that clock tower was real. I wish the three of us could stay together, just like this, forever. But I have to end this. I'll never forget today's sunset. Even if Roxas and Axel do, I won't forget.|Xion in her diary}}

[[File:Riku Turns Into Ansem 01 KHD.png|200px|thumb|left|Xion bonds with Axel and Roxas as they eat ice cream together on the clock tower.]]
Upon joining Organization XIII, Xion is a shy, secluded, and taciturn individual; at this point, Xion had not developed a will of her own. She first opens up to Roxas while they are on a mission together, and later grows close to Axel as well. Her shyness is reflected in her tone during her early days, as she speaks softly and sadly; however, by the time of her first death, Xion spoke a clear and calm voice as she had come to terms with her existence.

She does seem to express emotions due to her nature of existence and is always happy to be with her friends. She is emotionally fragile, however, becoming deeply engaged with the right provocation. When she is reminded of her past in ''Kingdom Hearts III'', she has a breakdown and begins to cry when she feels she has wronged her friends. She has a strong sense of justice and generosity, willingly sacrificing herself to join with Sora. Xion fights passionately to protect those she has come to care for.

After finding out the origins of her existence, she grows deeply confused and lost, and begins turning to Riku and Naminé for support as she does not want to make Roxas feel burdened, while Axel tries to keep her identity a secret from her.

Like Kairi, Xion takes a particular interest in seashells. When Roxas enters a coma, Xion places a seashell on his bedside table for every day he is asleep. In her nightmare on Destiny Islands, Roxas picks up a shell while whispering her name. After Roxas defeats Xion and her remaining memories go back to Sora, all that is left of her body is a single seashell.
{{-}}

==Abilities==
[[File:Xion Final Form KHMOM.png|200px|thumb|Xion in her final form.]]
As an indirect replica of Sora, Xion's fighting style as a playable character is very similar to his. After absorbing many of Sora's memories using the Organization XIII Devices, Xion is able to replicate Sora's Limits from ''Kingdom Hearts''. However, Xion's movement is quite similar to [[Limit Form]]'s, jumping back and stepping forward between attacks and slashing through the enemy in the finisher. Like Roxas, she thrusts with one hand and her finisher resembles the {{c|Vortex|ability}} ability. Before Xion obtains the Keyblade herself, she is limited to simply shooting basic spells from her palm.

===''Kingdom Hearts 358/2 Days''===
Once she obtains her Keyblade, Xion proves adept at handling it, being able to fight with it using her right or left<ref>https://www.khwiki.com/File:Promotional_Art_01_KHD.png</ref> hand. Her boss battle depicts her using many powerful melee attacks she seemed to have inherited from Sora. She also uses light much more often during her boss fight, such as creating spiraling circles of Light that suck in the player, leaving them vulnerable to one of Xion's aforementioned physical attacks. She can also use a light spell similar to [[Ragnarok]] and can envelop her weapon in Light to make her other attacks even more powerful.

Xion's [[Limit Break]] in ''Kingdom Hearts 358/2 Days'' is {{nihongo|'''Black Hole'''|イベントホライズン|Ibento Horaizun|lit. "Event Horizon"}}. During Black Hole, Xion rapidly darts around the field with her Keyblade enveloped in light, slashing away at enemies with great strength. In her [[Final Limit]], she summons four thin pillars of light to quickly move in straight paths to ends of the field, dealing heavy damage to any enemies in their path.

===''Kingdom Hearts III''===
In ''Kingdom Hearts III'', as a member of the Real Organization XIII, Xion makes use of basic Keyblade combos and [[Strike Raid]] in battle and is able to copy Saïx's berserker state. She is also able to perform a flurry of attacks with her Keyblade, finishing by switching to Saïx's claymore.

Once she regains her memories and joins the guardians of light, Xion becomes a support-focused party member. She can heal her allies with [[Curaga]] and can cast a remarkable and powerful spell [[Laser Rain]] at the cost of 10 [[MP]], which is similar to her Final Limit attack in ''Kingdom Hearts 358/2 Days''. She raises her Keyblade after shouting "Get 'em!" or "Holy!" with the tip brimming with energy and summons pillars of light to attack Saïx twelve times before ending with three pillars of light.

In ''Kingdom Hearts III Re Mind'', she can team up with Roxas and Lea to perform the [[Thinking of You]] [[Team Attack]], where she performs a series of coordinated slash attacks with Roxas, with the enemy trapped by Lea in a ring of fire. She is also implicitly as skilled with magic as [[Aqua]] and [[King Mickey]], as she teams up with them to shield the Guardians of Light with [[Reflega]] in the battle against the [[Replica Xehanort]]s. 

Xion's data replica can bounce around the battlefield as a ray of light. She can also conjure thin pillars of light similar to the ones from her Final Limit in ''Kingdom Hearts 358/2 Days'', as well as a larger golden variant.
{|border=1 cellpadding=2 cellspacing=0 style="text-align:center; font-size:90%" align="center" width=700px
!style="{{style|kh3|a}}; font-size:12px" colspan="6"|Actions
|-style="{{style|kh3|b}}; font-size:11px"
!colspan="2"|Ability
!Total Power Modifier
!Attribute
!Status Effect
!Description
|-
|colspan="2"|{{nihongo|'''Attack (Combo)'''|たたかう (コンボ)|<br>Tatakau (Konbo)}}
|3.5
|Physical
|—
|Attacks three times with weapon.
|-
|colspan="2'|'''[[Laser Rain]]'''
|0.3(per hit)
|Neutral
|—
|Rains down twelve light pillars around an enemy before ending with three at once.
|-
|colspan="2"|'''[[Curaga]]'''
|—
|—
|—
|Restores 210(+Xion's magic stat) HP to the target and 130(+Xion's magic stat) to nearby allies. Uses up all remaining MP.
|-
!style="{{style|kh3|a}}; font-size:12px" colspan="6"|Support Abilities
|-style="{{style|kh3|b}}; font-size:12px"
!Ability
!AP
!colspan="4"|Description
|-
|'''[[Double Team]]'''
|—
|colspan="4"|Deal extra damage when attacking the same target as the player character.
|-
|'''[[Damage Control]]'''
|4
|colspan="4"|Halve the damage you take when your HP is at 25% or below. Stack the ability to increase the effect.
|}

===Weapon===
As a replica intended to siphon Roxas's powers, Xion can wield the Keyblade. She wields her weapon fairly skillfully, being able to disarm Axel. Because Xion siphons her power from Roxas, whose powers come from Sora, they can both wield his [[Kingdom Key]], even at the same time. Because their weapons are the same, the [[Gear]]s produce the same forms when applied to either Keyblade.<ref>When using Xion in Mission Mode, equipping three ability units to the Zero Gear transforms it back to the [[Kingdom Key+]], as it does with Roxas in Story Mode.</ref> In her boss fight, her weapons resemble aspects from the world they are currently in. Her first form in Wonderland uses a large sword with a similar design to the Card Soldiers that protect the Queen, her second form in Halloween Town uses a pincer-like weapon with monstrous decorations, and her third form in Agrabah uses four giant Scimitars. In her final form, she wields two giant Keyblade-like weapons that resemble the Nobody sigil.

When Xion runs with her Keyblade, she grasps it with two hands instead of slinging it over her shoulder as Roxas does. This is identical to how Sora runs with his Keyblade in ''Kingdom Hearts II'' and ''Kingdom Hearts 3D: Dream Drop Distance''.

In ''Kingdom Hearts III'', Xion wields the [[Replica Kingdom Key]]. Xion also wields [[Lunatic]] while she is copying Saïx's berserker state.

<center>
<gallery>
File:Kingdom Key KH3D.png|[[Kingdom Key]]
File:Kingdom Key KHIII.png|[[Replica Kingdom Key]]
File:Xion (First Form) Weapon KHD.png|Xion's first form's weapon
File:Xion (Second Form) Weapon KHD.png|Xion's second form's weapon
File:Xion (Third Form) Weapon KHD.png|Xion's third form's weapon
File:Xion (Final Form) Weapon KHD.png|Xion's final form's weapon
File:Lunatic KHIII.png|Saïx's [[Lunatic]]
</gallery>
</center>

==Trivia==
*Xion was voted "Best New Character" in the 2009 ''{{w|Nintendo Power}}'' Awards.<ref>"Readers' Choice". ''{{w|Nintendo Power}}''. {{w|Future US}} (252): 66–67. March 2010.</ref>

==Notes and references==
{{reflist}}

{{Party}}
{{KeybladeX}}
{{358}}
{{Coded}}
{{DDD}}
{{KH3}}
{{MOM}}
[[Category:Replica]]
[[Category:Organization XIII]]
[[Category:Keyblade Wielders]]
[[Category:Allies]]
[[Category:Antagonists]]