Don't ever forget. Wherever you go, I'm always with you.Kairi to Sora
Kairi is one of the original main characters appearing in Kingdom Hearts. She is the original persona of Naminé. Kairi was born in Radiant Garden and currently lives on Destiny Islands along with her two best friends, Sora and Riku.
Kairi was 4-years-old during Kingdom Hearts Birth by Sleep, 14-years-old at the start of Kingdom Hearts, and 15-years-old during the events of Kingdom Hearts II and Kingdom Hearts 3D: Dream Drop Distance.
- 1 Personality
- 2 Physical Appearance
- 3 Story
- 3.1 Kingdom Hearts Birth by Sleep
- 3.2 Between Kingdom Hearts Birth by Sleep and Kingdom Hearts
- 3.3 Kingdom Hearts
- 3.4 Kingdom Hearts: Chain of Memories
- 3.5 Kingdom Hearts 358/2 Days
- 3.6 Kingdom Hearts II
- 3.7 Kingdom Hearts coded
- 3.8 Blank Points
- 3.9 Kingdom Hearts 3D: Dream Drop Distance
- 3.10 Kingdom Hearts 0.2 Birth by Sleep -A fragmentary passage-
- 3.11 Kingdom Hearts III
- 3.12 Kingdom Hearts: Melody of Memory
- 4 Abilities
- 5 Gallery
- 6 References
Kairi is caring, kindhearted and brave. She is determined and courageous when someone she cares about is in danger, as she always puts herself in harm's way to help Sora when he's in trouble despite the dangers. Kairi's heart is said to be filled only with pure light and goodness, despite darkness and evil residing in almost every heart. Kairi's good heart filled with pure light helped lead Sora back to his true form when he was consumed by the Heartless, and led Sora and Riku back to Destiny Islands when they were trapped in the Realm of Darkness after their battle with Xemnas.
Kairi is also very charismatic, quickly befriending Hayner, Pence, and Olette in Twilight Town before being kidnapped by Axel. She's usually always very cheerful and upbeat. Although she has no ability to defend herself in combat like Sora and Riku, she is very brave and strong willed and will put herself in danger anyway to help her friends. Unfortunately, this sometimes results in her needing rescuing by Sora. Near the end of Kingdom Hearts II, she finally obtains a Keyblade of her own given to her by Riku and helps Sora and Riku fight against the Organization. She is currently assigned under Master Yen Sid to begin training with her Keyblade.
In contrast to Sora and Riku, who were both bothered by not knowing about Kairi's hometown, she took it in stride and was able to look at the positives about living in the Destiny Islands. She is loyal, and she can be rather stubborn sometimes.
While the bond of friendship between Sora, Riku, and Kairi is very strong, Sora and Kairi seem to be particularly close to one another. This is evidenced by the fact that Kairi was proven to be the most special person in Sora's heart in Chain of Memories, and that their bond was strong enough for Kairi to recognize Sora in heartless form in Kingdom Hearts.
Kairi also has a strong connection with King Mickey's dog, Pluto. They met on Destiny Islands, and the she followed him through the dark corridors. Pluto is like her protector as well. It was loving that Pluto went to comfort her at the Organization's dungeon with her responding nicely by petting him.
Kairi's appearance shows the most growth with aging of the trio of main characters. Kairi has auburn hair, blue eyes, a pale complexion, and a necklace with a silver bead that is only absent when she wears her school uniform.
At age 14, during the events of Kingdom Hearts, she wears a white top with a black one underneath (the black one shows at her collarbone and at the hem) which slightly exposes her navel, purple biker shorts underneath a purple skirt with a blue belt, and white slip-on shoes with purple caps. She also features a black choker, a yellow wristband as well as a purple armband on her left arm and a pair of bracelets on her right arm.
In Kingdom Hearts II, Kairi is taller, her hair is longer and has become a darker shade of auburn, her bangs part to the opposite side, and her body has developed into that of a young woman.
She dons two outfits in Kingdom Hearts II: her school uniform which features a white shirt of which she has rolled up the sleeves, a sky blue striped tie which she has slightly loosen up, a matching skirt with navy knee-high stockings and black shoes; and then her main outfit which mainly contains a pink strapless mini-dress made up of three zippers (two appear to be just decorative) as well as a white halter top underneath her mini-dress with a black hood. She also sports three bracelets on her left wrist, a black belt reminiscent of suspenders with a note book-shaped bag attachment, and lilac sneakers with black laces.
As a child, as seen during Kingdom Hearts Birth by Sleep and scenes from Kingdom Hearts, her hair is a little longer than it is when she's 14; she wears a white apron-like shirt with blue flowers and a blue line across the chest, a pink skirt with a white line on it and large, white shoes with pink and purple lines on them.
In Kingdom Hearts III, Kairi has a pink and black dress, black ruffles on one side of her skirt and plaid on the other, with thick belted boots.
Kairi was born in Radiant Garden, where she lives with her grandmother. One day, she is chased by a group of Unversed and encounters Aqua, who senses a pure light in her heart, since she is a Princess of Heart.
Frightened, Kairi touches Aqua's Keyblade, unintentionally performing a Keyblade Inheritance Ceremony. As she and Aqua are about to be attacked, King Mickey arrives and Aqua evacuates Kairi before returning to fight alongside Mickey. After the Unversed are defeated, King Mickey and Aqua talk about the light they sense in Kairi's heart, and Mickey suggests that they team up, but is called away immediately afterwards. Kairi then gives Aqua the bundle of flowers she picked before the Unversed appeared as thanks for helping her (which becomes the Destiny's Embrace Keychain).
In return, Aqua puts a protective charm on Kairi's necklace, and tells her, "One day when you're in trouble, the light within you will lead you to the light of another, someone to keep you safe". Kairi thanks Aqua and then returns to her grandmother, who begins to tell her the story of the light and the darkness, while Aqua believes their meeting may not have been a coincidence.
After Terra-Xehanort's defeat, Kairi is seen picking flowers in a large garden. She looks up to the bright sky, looking as if she sensed something. As she does, her necklace emits a weak glow.
Between Kingdom Hearts Birth by Sleep and Kingdom Hearts
Say, Kairi. What was your hometown like?Sora to Kairi
One year after the events of Kingdom Hearts Birth by Sleep, Radiant Garden became shrouded by darkness and everyone was scattered across the universe. During this, Kairi was captured by Xehanort, after she was cornered by a group of Heartless. Xehanort told Kairi that their world was about to fall to the darkness, and that the only way to save it was for Kairi to assist him in an experiment. He told Kairi that he was under the suspicion that she was one of the Princesses of Heart, and as such, he was going to propel her off world to test any possible connection between the Keyblade wielders and the Princesses of Heart, and if the experiment is a success, Kairi's heart would resonate with a keyblade wielder's heart, which would lead Xehanort to that wielder's world. Just before Xehanort sent her on her way, he warned her that if she the experiment fails and she ends up "somewhere on the other side", then she was to abandon her search.
The experiment was a success, due to the protective spell Aqua had cast on her one year earlier, Kairi's heart resonated with the heart of a boy named Riku and she appeared on the Destiny Islands during a meteor shower, appearing floating in the water on the beach. But, as a result of the experiment, Kairi's memories of her time on Radiant Garden were repressed, and she had no idea where she came from. She was then brought to the mayor's house, where she was presumably adopted by the mayor.
So, suppose you get to another world. What would you do there?Kairi to Riku
Kairi later becomes very close friends with Sora and Riku who playfully compete for her attention. She often supports these competitions, although she does not know they were contests for her affection and not just innocent rivalry. She claims to have no memory of her life before the Islands, and her mysterious past sparks curiosity in Sora and Riku, who are anxious to leave Destiny Islands and see other worlds.
This leads the trio to build a raft in the hopes of traveling to other worlds. However, before they can leave, their islands are attacked by the Heartless, and Sora finds Kairi in their Secret Place. She turns towards him, looking sad, pale and a little ill, and then a huge gust of wind sweeps through a door in the back of the cave and Kairi flies towards him. Sora opens his arms to catch her, but she vanishes right as she is about to be swept into his embrace.
During this time, it is speculated that Kairi's heart chose Sora as a vessel and when she passed through him, her heart was left behind in him while her body vanished to some distant world.
She then becomes the game's driving force, as much of the game's story centres around Sora's and Riku's attempts at finding Kairi. However, Riku is hostile to Sora (having been manipulated by Maleficent into believing that Sora no longer cared for either Kairi or himself).
Throughout Sora's journey, he encounters multiple images of Kairi without knowing about Kairi's heart being a part of his. First, when he wakes up in a motel room after his fight with Leon, and sees Yuffie in Kairi's form and mistakes her to be Kairi until she tells him who she is. Later when he visits the Magician's Study behind the door of the Third District, Kairi appears to him and tells him how much the study reminds her of their Secret Place, but she disappears when Goofy calls to him.
When Sora crash lands into Deep Jungle, she reappears again for a short moment, right behind Tarzan, then disappears again. Finally, before setting off to Hollow Bastion, Goofy and Donald encourage Sora to believe in himself, then Kairi says from within "I believe in you." before pulling him into one of her lost memories about her grandmother telling her younger self a story about the light. These encounters indicate that Kairi was experiencing Sora's journey from within his heart, including befriending Donald and Goofy. This is later reinforced when she's talking to Sora in Traverse Town, remembers showing Sora her grandmother's story from within his heart.
Riku finds her first, but she is in a comatose state, with a vacant, lifeless expression and a limp body. She'd lost her heart and because of her Princess status, her body remained untouched by the darkness that usually produced a Heartless. With empty promises by Maleficent, Riku was convinced that he alone could locate Kairi's heart and restore her to health. When inside Monstro, Riku attempts to kidnap Pinocchio in hopes to use his heart to restore Kairi's. This act confuses Sora as he hasn't learned of her fate. His attempt fails and he is forced to retreat.
In Neverland, Sora finally encounters her body, along with a painful reunion with Riku; who is very defensive about her and ends up locking her in a room with Wendy so that Sora can't get to her. When Sora reaches the room below her cell, he extends his hand towards her, desperately hoping for a reaction as he is just now discovering the full lengths of Kairi's condition.
Unconsciously, her hand twitches before going still again, much to Sora's relief. Riku then takes her away yet again, having new knowledge of where Kairi's heart might be. After the defeat of Captain Hook, Goofy ponders aloud whether or not Kairi had indeed lost her heart, but Donald, not wanting to upset Sora, promptly shushes him. Sora, however, appears to be in denial, pondering over his disbelief that he could fly and whether or not Kairi would believe him.
Their friendship severed for the time being, Sora continues his journey, destined to clash with Riku in the near future once again over Kairi.
Eventually, Sora follows Riku and Maleficent to the world of Hollow Bastion where he too learns of Kairi's fate. However, Ansem, Seeker of Darkness, while possessing Riku, reveals that Kairi's heart has been resting within Sora all along, which explains all the visions he has had of her during his journey. Furthermore, Kairi is one of the Princesses of Heart, a maiden whose heart holds no darkness, and is needed to open the Final Keyhole. He then attempts to take her heart from Sora, but he defends himself to protect it.
After winning a fight and driving "Ansem" from Hollow Bastion, Sora sacrifices himself using the Keyblade of People's Hearts to free Kairi's heart, and is turned into a Shadow Heartless. Awakened as her heart is finally restored, Kairi runs towards him, but as soon as her fingers touch him, he vanishes. Refusing to believe that Sora is gone, Kairi prepares to fight the Shadow Heartless that surround her, along with Donald and Goofy.
This time, I'll protect you!Kairi to Sora's Heartless (whilst shielding him from the Heartless attack)
However, once "Ansem" reappears and Riku's spirit stops him from attacking Kairi, she flees. Devastated, she, along with Donald and Goofy, attempt to escape from Hollow Bastion. But just as they are cornered by the Heartless, she recognizes Sora's Heartless from the crowd and manages to bring Sora back from the darkness by embracing him and promising to protect him. The group escapes Hollow Bastion, revealed to be Kairi's home world, and find shelter in Traverse Town where she could be protected by Leon and the others.
Sora finds Kairi in the underground water tunnel after talking with Leon. She states absentmindedly how much this place reminds her of their Secret Place. While lost in darkness, Sora witnessed one of Kairi's memories of her as a little girl wandering around the Hollow Bastion library with her grandmother. Sora mentions this and it is revealed that after her heart was restored, Kairi could remember certain things from her past.
Though Kairi wants to help rescue Riku and stop the darkness from emanating, Sora convinces her to stay put, not wanting her to get hurt and also joking that she would be in his way; he also acknowledges that, since their hearts were one, they will always be together. During this conversation, it was revealed that Kairi's voice brought him back from the darkness. Kairi gives in and gives Sora her lucky charm, which doubles as the Oathkeeper Keyblade.
Remember what you said before? I'm always with you too! I'll come back to you—I promise!Sora to Kairi
In the game's final cutscene, she appears on a section of Destiny Islands after Sora's final battle with Ansem, Seeker of Darkness, likely confused. Sora runs up to her, a little too late as the world is breaking apart, restoring all the previously destroyed worlds. Just before she is sent back, Sora promises that he will come back to her as soon as he finds Riku and King Mickey. She is then transported back to Destiny Islands without him, wistfully watching the island regenerate around her with Sora's goodbye still fresh in her mind.
After the worlds are restored, Kairi visits the Secret Place, looking at the pictures that she and Sora had drawn over the years. Once she sees the picture that Sora had drawn of him giving her a paopu fruit, she is moved to tears and adds to it; the picture now depicting herself and Sora exchanging two halves of a paopu fruit.
Although Kairi did not directly appear in Kingdom Hearts: Chain of Memories, she did play a very important role. She served as a constant figure of light for both Sora and Riku and fervently awaited their return on Destiny Islands.
In Sora's journey, Marluxia ordered Naminé to take Kairi's place in Sora's heart. However, Naminé says later on that she could never really replace Kairi and that she is only Kairi's shadow. Kairi's image shows up at Destiny Islands when Sora remembers that the one he holds dear to his heart is Kairi, not Naminé. When Sora is about to go to sleep, Naminé tells him that if he remembers "the one most important to him" his memories will restore faster, so Sora looks deep into his heart and finds Kairi.
In Riku's journey, Zexion torments Riku with an illusion of Kairi, as well as with illusions of Tidus, Selphie, Wakka, and Sora. However, Naminé takes Kairi's form to help Riku control the light and darkness in his heart before the final face-off with the devious Nobody.
In the credits for Kingdom Hearts Re:Chain of Memories, Kairi is shown to still be waiting for Sora and Riku's return.
During this time, Kairi is assumed to be living a normal life on Destiny Islands where she is waiting for Riku and Sora's return, though her memories of Sora have probably become vague due to Naminé's interference with Sora's and her memories. With the two of them away, her only company becomes Selphie, Tidus, and Wakka.
Xion is an imperfect Replica of Roxas 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. She takes the visible form of Kairi, since Sora's memories of Kairi were the strongest ones when she was created.
Roxas sees a memory of Kairi during a mission in Destiny Islands and remarks that she looks like Xion.
Kairi, now fifteen years old, lives her life normally on Destiny Islands. She attends school regularly along with her friend Selphie and has noticeably aged, having longer hair and more defined features. It can be assumed that she has spent most of her time focusing on her studies, thinking about the boy she's forgotten, and hanging out with Selphie, Wakka, and Tidus - all of whom have returned to Destiny Islands safely. She's also become slightly more withdrawn because of Sora's absence, with wisdom beyond her years. She's not as brash and bold as she was in the first game, but she's still pretty sociable. She understands that both Riku and Sora have great destinies and duties to fulfill, but that still doesn't keep her from pondering taking action and searching for them on her own.
She misses Sora, but most of her memories of him have faded away because of Naminé's interfering with his own memories. One day, while walking home from school with Selphie, her heart is put into contact with a young boy named Roxas, later revealed to be Sora's Nobody. It appeared that Roxas was trying to contact Naminé, Kairi's Nobody, and ended up reaching her instead.
During this conversation, Roxas brings up Sora, and, when Kairi inquires about his name, Sora himself, despite being in stasis, somehow uses Roxas as a conduit to talk to her, chastises her for forgetting his name, and jokingly gives her a hint ("Starts with an 'S'!"). Soon afterwards, Kairi sends a letter in a bottle out to sea in hopes that it would reach Sora one day, and immediately remembers his name and possibly everything else about him ("Starts with an 'S'... Right, Sora?").
- It is worth noting that this was the only conversation Kairi and Roxas had throughout the whole game.
Maybe... waiting isn't good enough.Kairi
One day, Kairi decides to look for Sora and Riku herself instead of keep waiting for them. Axel then comes to Destiny Islands and tells Kairi to come with him. She refuses until Axel summons a group of Nobodies. A bark behind her gives her another option. She then runs off into a nearby portal of Darkness with King Mickey's dog, Pluto, into Twilight Town and meets Hayner, Pence and Olette. She hits it off with them, immediately fitting in with the three and going as far as to explain for whom she is searching. To her joy, Hayner, Pence, and Olette know Sora, assuring her that she could stay in Twilight Town until his next visit.
Unfortunately, she is found again by Axel and forcibly taken by him, Olette, Hayner, and Pence's attempts doing nothing to prevent it. However Saïx finds Axel with Kairi and takes her to the World That Never Was as a prisoner, stating that she is the "fire that feeds Sora's anger". Kairi is devastated, thinking all hope is lost until she is freed by her Nobody, Naminé. Naminé uses a Corridor of Darkness to allow them to escape the cell, telling Kairi to believe in herself.
This is real.Kairi to Sora as she embraces him
The two's attempt to escape is stopped by Saïx and two Berserker Nobodies who offer to take Kairi to Sora. Once she refuses, Saïx gets ready to send the Nobodies to attack the two girls only to be saved by a cloaked figure. Naminé hints at who the cloaked figure is, causing him to pause as Kairi strides towards him to remove the hood. Her guess is correct and it is indeed Riku even though his appearance has changed to that of Xehanort's Heartless, though she takes this in stride and is just happy to be reunited with Riku. Riku leads her to Sora and is attacked by a group of Heartless. He hands Kairi a Keyblade, and they successfully fend off the remaining Heartless. She is then reunited with Sora with a hug between these two. She stops Ansem (Riku) from leaving and shows Sora that Ansem is really Riku.
The three along with Donald and Goofy face off with Luxord and Saïx to get to Xemnas. Kairi is a pillar of support during these battles more than an actual participant - as Luxord's battle leaves them caged by cards and Saïx uses a shockwave to force both her and Riku (using his body to shield her) behind a barrier so he can battle alone with Sora, Donald, and Goofy.
After Sora and Riku defeat Xemnas, Naminé appears and creates a portal, where Donald, Goofy and Mickey go through leaving Sora, Kairi and Riku. Kairi walks towards her and Sora follows Kairi. Kairi thanks her as Naminé tries to make Sora remember her, but Sora gets confused. Roxas comes out of him. Naminé and Roxas accept their fate together to live inside Sora and Kairi as they fuse with their original selves. Kairi walks into the portal, but when Sora and Riku follow the portal disappears and they fight Xemnas again.
You're home.Kairi to Sora after he returns to Destiny Islands with Riku
After they defeat Xemnas, they arrive at the shore of Dark Meridian. Kairi's letter washes up on shore and Sora reads it. The Door To Light appears and the two boys go through it and arrive at Destiny Islands shores as Kairi shouts for them. Sora excitedly swims towards her but Donald and Goofy jump at Sora first and Mickey jumps at Riku. They hug Sora, then Sora shows her the lucky charm and replies to Kairi "W-We're back!" while Kairi corrects him, saying "You're home" and extends her hand. As Sora takes her hand, he simultaneously returns the lucky charm to her. For a brief moment, Roxas and Naminé are shown smiling back at each other, just as Sora and Kairi are.
Shortly after King Mickey, Donald, Goofy, Pluto, Jiminy, Scrooge McDuck, Dewey, Louie and Huey return to Disney Castle, Sora and Riku talk about the Door to Light until Kairi appears running to them, shouting their names. Sora turns to her and asks "Hey, What's up?" and Kairi hands him a letter in a bottle that displays King Mickey's seal. The trio immediately open the letter and read it, though its contents are hidden from the player.
After Mickey sends his letter to Sora. Sora, Riku, and Kairi read it, and Sora prepares to leave to meet Mickey.
Sora sits on the Paopu tree while holding the message from King Mickey, staring off into the sunset. After Sora tells Riku that he has made a decision, Kairi walks up to them. Sora tells her that everyone needs him, and that he has to go because he is who he is because of them. She then hands him her lucky charm and tells him that she'll see him soon.
Kairi appeared in the trailer for this game, seen sitting next to Sora near the paopu tree. She also made an appearance in the Jump Festa trailer along with Naminé.
Sora sees an illusion of Kairi when traveling in The World That Never Was, when being reminded of his friends.
In the secret ending, Yen Sid sends Riku to bring Kairi to the Mysterious Tower. Yen Sid states she can wield a Keyblade and needs to talk to her, leaving confusion on Riku and Mickey as to why. In actuality, he wants to begin training Kairi in combat so she can defend herself from the newly revived Organization XIII, who Yen Sid believes are trying to capture the 7 Princesses of Heart to create the X-blade.
Kairi appears at Yen Sid's tower, set immediately after the events of Kingdom Hearts 3D: Dream Drop Distance. She stands with Mickey and Riku and listens to the flow of conversation between the other three for the most part. When the matter of her training as a Keyblade wielder is brought up, Yen Sid reveals to her that she will be training with the wizard, Merlin alongside Lea. Although shocked that he used to be Axel, the guy that kidnapped her, she agreed to it when Riku assured her that it'd be alright.
Kairi is continuing her training with Lea in a place Merlin created, the Secret Forest. There, time doesn't exist so they can take as much time as they need for training. When Kairi is writing a letter to Sora (she explains it's more for herself), he surprises her with sea-salt ice cream to celebrate them summoning Keyblades. Kairi notices him staring at her and asks if he is still trying to remember something, which he admits. She tries to change the topic by expressing excitement for their duel in the ring, while telling Lea to not hold back, which makes him remember something. Overwhelmed, Lea starts to cry and Kairi attempts to comfort him. He tries to wipe away his tears and tell her it is nothing. Before leaving, Kairi asks him to stop apologizing for kidnapping her, which he agrees to on the condition that she calls him "Axel" for now on.
Later on, while Lea is watching the sunset, Kairi shows off her new haircut and dress. He got a new outfit as well, but isn't too interested. Then, Kairi explains the desire to free Naminé, a similar case he shares with Roxas. He mentions to her about meeting Ventus when he was a kid and how they became fast friends, but never saw him again. Over the years, he almost forgot Ventus until Roxas joined Organization XIII since the two were identical. Roxas was never told, because he didn't want Roxas to dissappear as well. Lea is concerned that Ventus might not remember him, but Kairi gives reassurance as their training reaches an end.
At Yen Sid's Tower, all of the Seven Guardians of Light (Lea included) meet up as well as Donald and Goofy to catch up. Aqua remembers from when she saved her from the Unversed, but she admits that she still doesn't remember her time before arriving at Destiny Islands, but she thanks her non-the-less. Yen Sid then told the Guardians to prepare.
Sora, Riku and Kairi head back to Destiny Islands to relax before their big fight with the Real Organization XIII. Riku leaves her and Sora alone, saying he needed "time to himself. Sora is curious on what he meant by that, but Kairi grabs his attention by offering to share the Paopu Fruit with him. The two promise to keep each other safe and share the fruit together.
The Seven Guardians of Light head to the Keyblade Graveyard, where they are confronted by Master Xehanort, Ansem, Xemnas, Vanitas and Young Xehanort. They fight a wave of Heartless before they are confronted by Terra-Xehanort. The possessed keyblade wielder attacks the group, making easy work of them. He goes to attack Kairi and she freezes in fear, causing Sora to shield her with his body. Donald then defeats Terra-Xehanort with Zettaflare, but this knocks him out. The group are then attacked by a hurricane of Heartless, which pulls Kairi away.
Luckily, Sora used the Power of Waking to undo this, freeing the other Guardians from a powerful Heartless. Kairi uses her princess powers to light Sora back to before they were attacked by Terra-Xehanort. The same scenario plays out until a mysterious knight appears and attacks Terra-Xehanort, leading him away. The group then get overwhelmed by the Heartless, but Merlin appears and creates a path for them to advance through, allowing them to face the Organization.
Kairi ended up paired with Lean, facing against Xemnas, Saïx and a mysterious figure. During their pre-battle talk, the mysterious figure suddenly attacked Lea, but Kairi protected him and realized the figure was a girl. The five of them fought, but the Guardians began to feel overwhelmed. Sora came to help, but even then they were overwhelmed by Saïx. Eventually it was revealed that the mysterious figure was Xion, Lea's forgotten friend, who begins to remember who she is. As Xemnas prepares to kill her despite Lea's pitiful attempt to stop him, Roxas's heart emerges from Sora in a beam of light, immediately traveling to Radiant Garden to obtain a replica body there before forcing Xemnas to jump back as the force of his return to the graveyard creates a cloud of dust. As the dust settles, Xemnas is horrified to see Roxas, questioning how he has returned. Roxas reveals that, like Xemnas, he is using a replica, and it was through his connections with his friends and their hearts that he was able to return.
Suddenly Sora attacks Xemnas, prompting Roxas and Xion to do a double attack. This fails, but it leaves Xemnas open long enough for Kairi to attack him. She does fairly well, but is eventually restrained by Xemnas. After Lea, Roxas and Xion fight the two Seekers to a stand still, Xemnas realizes he was outmatched. Xemnas remarks that he doesn't need hearts and that he would scatter them to the winds before warping behind the heroes and abducting Kairi, telling the guardians that though they have more lights, the Organization has more darknesses to replenish their ranks before warping away with Kairi.
She is then taken to Xehanort and used as a means to get Sora, Riku and Mickey to fight. With Ansem, Xemnas and Young Xehanort defeated, Xehanort strikes down Kairi in order to motivate Sora into clashing with him, shattering her Heart into seven crystal fragments for insurance purposes. Luckily, a time travelling Sora from the future travels through the Hearts of the Guardians and retrieves these fragments, and Kairi is restored to life. But the two are almost immediately confronted by an apparition of Xehanort. The two fight together and eventually defeat this foe with the help of the other Guardians, before fading away into The Final World. Sora then introduces her to Chirithy, and they convince her to come home and reunite with her friend. The two of them then go on a victory tour of the world, dropping off Chirithy with Ventus at the Land of Departure and restoring Naminé in the process, and eventually meet up with the other Guardians on Destiny Islands.
Sora and Kairi sit together on the palm tree they always hung out on and watch the sunset. Sora then tells her something which makes her cry, before he fades away as punishment for messing with fate. Kairi is so upset by this that she allows Ansem the Wise to put her into a deep sleep for a year in order for him to analyse her dreams in the hopes of finding Sora.
While asleep, Kairi sees all her memories of Sora and eventually uncovers her memories of her time at Radiant Garden, including the memory of Terra-Xehanort sending off world. She is then confronted by an illusion Master Xehanort. Although she puts up a fight, she is unable to defeat him. Suddenly, Kairi's link to Sora allows him to remotely control her and defeats the manifestation of Xehanort. Before Kairi wakes, Xehanort reminds her of a world on "the other side".
Kairi informs Ansem, who concludes the "other side" is a world of fiction. Riku and Fairy Godmother arrive, with the latter sending Kairi and Riku to the Final World to find clues. They meet the Nameless Star, whom Riku tells of his dream of seeing Sora is a world of tall buildings. The star suspect that this must be her homeworld, Quadratum. Riku opens a portal to the world, while Kairi leaves to tell Yen Sid of their discovery. After Yen Sid sends Donald and Goofy to inform the other people searching for Sora of their discovery, as well as sending Mickey to Scala ad Caelum to investigate the ancient Keyblade Masters and how they may be connected to the other reality, Kairi tells Yen Sid that she wishes to continue her training under Aqua, which Yen Sid agrees to.
Powers as a Princess of Heart
Because Kairi is a Princess of Heart, her heart possesses no darkness within it, leading to the unique birth of Naminé when she accidentally gives it to Sora, who later sacrificed himself to restore her heart. Should her heart be lost, her body will remain in a dormant state until it returns, as revealed in the first game when her heart was lost.
- Like the other princesses, she has the power to open the Final Keyhole to Kingdom Hearts in Hollow Bastion once she is gathered with the rest of the princesses. This could be considered as the princesses' main power.
- Kairi also appears to have some kind of latent magical ability, as seen when she manages to restore Sora's humanity after he becomes a Heartless. However, it could imply that she is only able to restore him because they share the strongest connection.
- Since the other Princesses of Heart possess the abilities to hold back darkness and upgrade other people's powers, it is no doubt that Kairi can do so as well.
- Aqua cast a charm on Kairi in Kingdom Hearts Birth by Sleep so that if she was ever captured by darkness, her light would lead her to the light of another. In an interview, Tetsuya Nomura stated it was this charm that led Kairi to Destiny Islands.
- She additionally has the ability to sense darkness, as the other Princesses of Heart are able to tell Sora of a great darkness nearby. It may also imply to why she was looking ill when Destiny Islands was devoured by the darkness before she disappeared.
- In the manga, according to Axel, Kairi is able to travel through the Dark Corridor without any negative effects because she is a Princess of Heart.
Kairi is the only Princess of Heart that is able to harness the power of the keyblade. In Kingdom Hearts Birth by Sleep, Kairi was granted the power to wield a keyblade due to her accidentally touching Aqua's keyblade, thus innitiating the Keyblade Inheritance Ceremony. Kairi's abilities in combat are limited. Kairi isn't able to do much when she is in danger, but her bravery and determination to help her friends motivates her to put herself in danger for them anyway. This results in her sometimes being captured, and Sora and Riku having to come to her aid.
During the events that take place in the World That Never Was, Riku hands her a Keyblade crafted from his memories of Destiny Islands, and allows her to wield it so that she may combat the Heartless. She is shown to be fairly competent with it, and was shown to take out several Heartless on her own in cutscenes.
At the end of Kingdom Hearts 3D: Dream Drop Distance it was revealed that Yen Sid has sent Kairi to join Lea in training with Merlin to learn how to use their Keyblades.
By the time she finished her training under Merlin in Kingdom Hearts III, Kairi displays considerably improved abilities with her Keyblade. She was able to fight side-by-side alongside her allies to fend off the large amount of Heartless, Nobodies and Unversed unleashed by Organization XIII, suffering no wounds in process. She also is capable of holding her ground against Xion despite being far less experienced than her, even able to at times force her into the defensive and ultimately briefly incapacitate her before being overpowered by Saix. She could even briefly surprise and pressure Xemnas, forcing him to use Nothingness to defeat her. Her fighting stance is similar to Sora's, but her fighting style revolves around performing a corkscrew-spinning ground-to-air combo effective for stunning foes or quick spinning combos. Kairi has also gotten versed in magic, able to use all the elemental spells at the ga level along with Curaga and can fire a blast of magical energy called "Flower Shoot" and use Barrier. Kairi is also able to manipulate light to empower her strikes, using a 7 Strike Raid-like combo called "Seven Wishes", could even rain down balls of light with her Shotlock "Heart of a Princess", and with the help of Sora she can preform an attack called "One Heart".
In Kingdom Hearts: Melody of Memory, is able to temporarily hold her own against a manifestation of Xehanort, displaying reasonably creative techniques such as seamlessly summoning her Keyblade to her free hand when Xehanort catches it to get out of his grip, with Xehanort even complimenting Kairi on her skill, but ultimately she proved to be no match for the Keyblade Master and is only saved by an apparition of Sora, who defeats Xehanort.
- Kingdom Hearts: Melody of Memory
- Kingdom Hearts Birth by Sleep Ultimania "Nine years before Kingdom Hearts, Kairi was thrust into the outside world, and found herself on Sora and Riku's world. Ansem, Seeker of Darkness thought that she had been able to search for a Keyblade wielder, but what actually saved her was the magic spell Aqua had put on her".
- Kingdom Hearts Birth by Sleep Ultimania "The Keyblade Inheritance Ceremony is performed with a Keyblade Master touches someone using a Keyblade. When Kairi was running away from the Unversed in Kingdom Hearts Birth by Sleep, she grabbed Aqua's Keyblade. This is why she is able to use a Keyblade in Kingdom Hearts II to help Sora".