Read more about Xion at: Wikipedia

Official Site: Square-Enix

is a fictional character from Square Enix's video game franchise Kingdom Hearts. She was introduced in the 2009 game Kingdom Hearts 358/2 Days as the newest and fourteenth member from the group Organization XIII which is composed of Nobodies, beings created from people who lost their heart. In her time working for Organization XIII, Xion befriends Roxas, another new member from the organization, as well as Axel. In contrast to her comrades, Xion does not bear memories from her original self and instead starts receiving memories from other people. This leads her to learn about her true nature as a replica of Sora, the series' protagonist and Roxas' original self, as well as what she should do. Xion's character has been voiced by Risa Uchida and Alyson Stoner in Japanese and English, respectively.

Xion was conceptualized during development of the game Kingdom Hearts II in which the staff wanted to explain the reason why Roxas left Organization XIII. Additionally, the staff wanted to create a new member from the cartel but having a different nature from all the other members. While scenario writer Tomoko Tanemaki came up with the idea for her character, director Tetsuya Nomura designed her. Xion's character has been well-received by video game publications due to her role in 358/2 Days as well as her relation with Roxas and Axel.

Xion appears in Kingdom Hearts 358/2 Days as the newest member from Organization XIII. During her time with the Organization, Xion befriends the member Roxas who, like her, has the ability to summon the weapon Keyblade in contrast to other members. This allows her to capture hearts for the Organization's ambition. In later days, Xion loses such ability and is able to recover it when helped by Roxas and Axel, the latter also becoming one of her friends. However, while tracking down Riku, a teenager labelled as an impostor for wearing the same outfit from the Organization, and losing to him, Xion eventually questions the nature of existence as she experiences more memory from Sora. Xion later learns she is a creation from Organization XIII meant to replicate Roxas' powers and Riku tells her that her memories belong to Sora who has been put to sleep in order to recover them. However, due to Xion's existence, Sora is unable to wake up and Xion starts wondering what should she do as she wishes to be with Roxas and Axel. After being captured by Axel, Xion learns that Sora's memories are making her stronger while weakening Roxas. As the Organization plans to kill Roxas due to his weakened state, Xion decides to escape from the group. Managing to escape during a mission with Axel and Xigbar, she meets the Nobody Naminé, who is in charge of restoring Sora's lost memories. Naminé tells her that giving back Sora's memories would not only kill her but also all memory of her existence as well. However, Axel tracks Xion and takes her back to the castle, unwilling to let her die. As Axel falls unconscious after battling and capturing Xion, Xemnas, the organization's leader, takes her. Next day, Xion approaches Roxas who has also left the Organization and attacks him, forcing Roxas to fight back by threatening to absorb him so she can become the "real Sora". During the battle, Roxas defeats Xion who reveals that Xemnas once again wanted to use her kill him. She then asks Roxas to free the hearts both of them captured for the Organization before dying in his arms, fading away. However, though erased from everyone's memories, some hint of Xion resides in the memories of Riku and Roxas, the former being requested by her to stop Roxas from fighting Xemnas. After Roxas loses consciousness against Riku, Xion assures him that she now exists through both him and Sora while promising that their time together will never be forgotten.

Although Xion does not appear in Kingdom Hearts coded, she is mentioned as one of the people that, while gone, is connected to Sora's heart. Xion makes a cameo appearance at the end of Kingdom Hearts Birth by Sleep with Roxas and Axel, the three of them eating ice cream at the Station Tower in Twilight Town. Xion's role in 358/2 Days is also repraised in Shiro Amano's manga and Tomoko Tanemaki's light novels adaptations from the game.

Xion has not been a contender in any CBUB matches.