Kingdom Hearts Kairi Uzumaki The lost Sister
Disclaimer: I do not own Naruto or Kingdom Hearts. Naruto is owned by Masashi Kishimoto Kingdom Hearts is owned by Tetsuya Nomura and Square Enix respectively. Certain elements of this story were inspired by other Naruto/Kingdom hearts crossovers. Credit for the title is given to TalkingSalad12 who suggested it through a PM.
Posted August 11, 2021(Wednesday)
Word count (I am counting the AN as I put effort into writing them)-4540 words
EDIT: December 20, 2020(Friday) the PM emails notifications returned!
I am going to step bolding Keyblade names, Jutsu attacks and magic attacks.
AN1: WOW! I am just going on a limb and say people either did not like or outright ignored my first posted Lemon! Maybe it's the theme that turned people away from it? Anyways they are not related to any of my actual stories and was a way to have fun and post something on the site.
The Lemon was removed off of fanfic so I reposted it on wattpadd.
As of this chapter posting I have 191 follows, 179 faves and 50 reviews. Thanks everyone!
Trigger warning. I think some people will not like one particular twist in this chapter but hey my story. Don't like. Don't read. This is meant to be OP Naruto after all.
Chapter 4 Xion gets new clothes and Namine gets a new body
Kairi and Xion came up to him to hug them tightly as he wrapped around each of his sisters as Xion and Kairi had tears in their eyes.
"When did you lose Mom and Dad?" Kairi asked with a sniffle as everyone could tell Naruto must have lost his parents before he was 5 years old.
Naruto had a sad smile as he gently pulled his arm off of Xion and raised up one finger.
"You lost your parents when you were one year old?" Aqua gasped as she could tell Naruto childhood appeared to be full of neglect and hatred.
To everyone surprise Naruto shook his head.
"No. 1 hour. In the same hour I was born and Kairi was taken from us, our parents died." Naruto revealed as Kairi gasped her face in terror. AN2:
"What? What do you mean! Please tell me!" Kairi begged as Naruto pulled away before sighing.
"The same night of our births a great disaster happened to our home and our parents died to stop it. In a way people could not help but blame me for the disaster and that is why I grew up without love." Naruto stated as he stared sadly as Xion and Kairi.
"Why would they blame a baby for some disaster that happened to your home?" Riku demanded as he could not understand the injustice of it. He could feel the loneliness from the younger Naruto and the could see the guilt on the old man who acted as Naruto's guardian.
"Because humans cannot help but hate as its easier to hate somebody then to accept them." Naruto replied before chuckling.
"Most of the people I call friends at one point thought I was a loser or were at war with people I cared about. However, we found a way through the darkness and now everyone is my friend!" Naruto declared with a bright smile that soothed the guardians of light.
However, Namine inside of Kairi frowned.
'I can tell. He is faking that smile, he still full of pain. It's the same look I think I have when I look in the mirror.
Naruto then turned to Xion with an inquisitive look as he scanned her over making her blush.
"What?" Xion squeaked as she felt her face heat up as her admittedly attractive brother was focusing his attention on her.
"I am not a fan of the cloak on you. It totally does not represent you." Naruto told as he put a hand on his chin as he looked rather thoughtful.
"Hey what's with the cloak?" Lea asked abit indignant as Naruto raised an eyebrow.
"Besides the fact your former bosses wear it?" Naruto retorted as Roxas snorted and Riku gave a wry smile.
"This black coat represents the Xion who believed she didn't deserve to be her own person. She deserves a new outfit to show she is herself." Naruto declared as he quickly made a sign with his hands.
In a puff of smoke that surrounded Xion as she blushed.
'Wait I feel a breeze on my thighs! This feels different but abit more…' Xion thought as she couldn't see in the smoke but she could feel the new outfit appear on her body.
After the smoke cleared Roxas and Lea jaws dropped at Xion new outfit while Kairi gasped.
Instead of the dreary Black Organization 13 coat she wore she new wore something that looked closer to Kairi's current outfit. She now wore a form fitting sleeveless black shirt that left her arms bare along with a black belt on her stomach. The shirt ended at her hips and somewhat resembled the hoodie Kairi was currently wearing with the hood and in black instead of pink. Underneath she had a white mini dress that extended past where her shirt ended but only about 2 cms. This left her thighs and knees exposed till her new -half way up to her knee- black boots that looked more comfortable and stylish closely resembling the boots that Kairi was wearing now. AN3:
All in all, Kairi and Namine thought Xion was wearing a colour switched version of both of their outfits together. The shirt representing Kairi and the dress representing Namine.
"Well, that is certainly different." Aqua remarked as she glanced at Xion and Kairi and thought they looked more like 'sisters' now with the clothing now matching more closely.
"This is rather nice and comfortable." Xion admitted as she twisted not minding how her arms and legs were more exposed than before. If anything, it felt more comfortable then her former Organization 13 coat which just happened to drape over her. The slight breeze felt rather nice.
Riku raised an eyebrow as his memories of Xion had returned after her heart went into her current Replica body but he did not make a big deal of it.
'Roxas is probably not happy with me in regards to Xion. It had to happen but I still pushed Xion to return to Sora the first time. Plus, if my feeling is right and Naruto is as protective as he seems he might not want me to be too friendly with his 'sister'.' Riku thought with a sweatdrop.
'I still don't quite know why that girl looks like Kairi but I am glad things are working out.' Sora thought as he did not quite understand all the memories, he got passed onto him from the Dream version of Roxas.
"You look well happier in that." Lea said awkwardly as Xion giggled at the expense of her friend.
"Better than you keeping the coat on rather then changing into the new clothes the Fairies made for us." Kairi teased as she and Xion shared a smile while Lea rubbed his head.
Naruto looked serious before he gave a shrug at Roxas and Lea.
"Do you want me to change your clothes too? I mean it won't be as stylish as Xion but I might as well offer." Naruto offered with a wave.
"No thank you!" Roxas said flatly crossing his arms with a frown.
"Yeah no. Nobody but me is going to change my clothes. Got it memorized?" Lea said as Xion rolled her eyes playfully.
"Don't say I didn't offer." Naruto said easily before he turned to Xion with a huge grin as she had a small blush on her face.
"You surprisingly have good sense for girls clothing." Aqua remarked as Naruto had a sheepish smile.
"Hehe. Actually, not quite. I met some nice kids from a cozy world you might know. Twilight Town which had 3 nice teens." Naruto admitted as Roxas eyes widened in recognition as Sora perked up as well.
"Hayner, Pence and Olette?" Roxas asked excitedly.
"Yup. They are waiting to meet you for real Roxas. They believe you are their friend they haven't met officially yet." Naruto told Roxas who had a small smile.
"I see." Roxas said softly as Lea put a hand on his shoulder smiling down at him.
'After all this is not the first world I went to after I left my home world. No matter if I wanted to go to Kairi's world first I couldn't. Things had to go a certain way before I could get to the world she was in.' Naruto thought sadly.
"Anyways Olette helped me pick some clothes out when I told her about Xion although I did have to say she was Kairi's long-lost cousin as the truth would have been abit difficult to explain." Naruto admitted as Xion and Kairi shared a curious look with each other.
"She was extra excited when I told her we were brother and sister and told me 'You have the look of someone who will is desperate to find their family' and that is what convinced her to trust me." Naruto mused as he looked abit embarrassed when Kairi beamed at him.
Naruto turned back to Xion whose blush returned when his attention was back on her.
"What do you think?" Xion asked nervously doing a small spin for him and putting her hands in front of her nervously. Xion after subconsciously put a strand of her hair behind her ear unknowingly acting like a schoolgirl talking to her crush.
Naruto grinned at her before bringing another tight hug making her eep as her face was pressed into his shoulder again and his arms wrapped around her back.
"You look very pretty Xion." Naruto told her warmly as Xion after a moment wrapped her arms around him as they two 'siblings' held each other.
Naruto himself could not resist getting small but potent scents of her hair in his face.
'She is rather fragile and soft. Hmmm that smell. Its not like Kairi who has a natural strawberry scent. Maybe Chocolate? Maybe its her black hair hehe.' Naruto mused as her warm scent wafted into his face which he rather enjoyed.
'He feels so solid. I mean! Its just nice to have a brother who cares so much!' Xion thought to herself as her massive blush was hidden by Naruto's neck.
Kairi slightly frowned which Riku picked up on.
'Huh. I have never seen Kairi jealous ever. Is it because Naruto is spending so much time with Xion right now?' Riku thought with irony.
'He just met her! I mean yeah we haven't seen each since we were in the womb but he is my brother!' Kairi thought with a pout before she shook her head.
'I mean its nice my brother is like the kindest person ever but would it be wrong if I wanted more time with him?' Kairi thought with a sigh. She honestly did like how much Naruto made Xion feel safe but it did erk her abit that she could not have all the time right now to get to know him.
After a few minutes Naruto released Xion who looked abit surprised by Naruto letting go but shook her head. Xion walked back to Roxas and Lea who both gave her teasing smiles.
"What?" Xion asked putting her hands on her hips in annoyance.
"Nothing! I just kinda get why you can trust him so much." Roxas admitted as they watched Naruto walk back to Kairi.
"Yeah, this guy seems to wear his heart on his sleeve." Lea noted with a nod.
"Kairi." Naruto told her with a smile as she sent a him a confused but happy smile.
"Yeah?" She asked before Naruto eyes grew soft.
"Are you ready to let Namine out?" Naruto asked as Kairi gasped.
"Wait! You mean unlock her heart inside Kairi's?" Mickey asked with a startled expression.
"I mean you would need a Keyblade to do so." Aqua added awkwardly as despite his impressive powers they had not see him summon a Keyblade out.
"I can do it too." Naruto confirmed easily with a grin as he looked at Kairi in the eyes.
"Do you trust me?" Naruto asked her as Kairi blinked before nodding.
"As if! Even if you could get her heart out without turning Kairi into an empty husk. Look around you. Where is Namine suppose to go?!" Xigbar mocked loudly inside the barrier.
"I will admit the Replica for Roxas was a surprise but there is no way you have another one ready for Namine." Xenmas calmly declared as everyone looked alarmed.
"Do they have another Replica at Radiant Gardens?" Riku asked Mickey who bit his lip and shook his head.
"No. I don't believe so. They only recently got Vexen back who could make complete Replicas." Mickey whispered.
"That witch is doomed. She already lost her body when she returned to the red-haired brat so she would be just a heart without a body to live in. She might as turn into a heartless at that point." Larxene retorted cruelly as 'Riku' and Vanitas sent mocking smiles at Kairi.
Kairi, Sora, Riku and Aqua glared at Larxene while Naruto turned around with a cold smile.
"That 'witch' is my sister and if you don't shut up you will regret it." Naruto warned her as he clenched his hand.
'Naruto.' Namine thought inside of Kairi touched her brother cared so much for her that even just an insult ticked him off.
"Oh? And what are you going to do about it? Do you pity that witch because she is blonde like you that nobody wanted?" Larxene mocked as Naruto eyes narrowed.
Before any of the lights could retort to the blonde 'ninja' of the True Organization 13 Naruto leapt at them barrier or not.
"Don't you dare mock Namine!" Naruto roared as he put his hand out and a MASSIVE Blue orb appeared in his hand. It was several times bigger than himself as he held it in his hand and thrust it towards the barrier.
The True Organization was on edge as Naruto's attack collided with the red barrier. Ironically the barrier that kept them trapped actually protected them as Naruto's attack grinded against the barrier but the barrier held. The attack struggled for a few seconds before it slipped out of Naruto's hand and launched past the barrier into the nearby mountain behind the barrier.
"Haha! Your own attack failed because of a barrier you put up! What a loser." 'Riku laughed before everyone heard a distant explosion.
Everyone looked at the mountain as it exploded in a massive blue of energy from Naruto's blue ball. There was a blinding light as everyone had to avert their eyes covering them with their arms. A few moments later there was a massive amount of smoke as everyone looked over at the spot. The smoke cleared as everyone jaw dropped.
"The mountain…" Ventus started as he pointed into the cloud dust area which started to clear.
"Its…" Lea stuttered.
"Gone." Riku finished as Donald and Goofy jaw were wide open.
The giant mountain was reduced to about a quarter as the explosion vaporised the rest of it.
"Don't ever say that about my sisters or the next one might hit YOU instead." Naruto told Larxene coldly.
For once even the spiteful and cruel Larxene was rendered speechless as she shivered as she stared into the cold blues eyes of an angry Naruto Uzumaki.
'Shit! This brat is packing some heat! To think someone like him could be born.' Xigbar thought sweating.
'This boy. He truly cares about his friends and yet does not succumb to darkness to protect them. Who is he?' Master Xehanort thought curiously.
After a minute of glaring at Larxene and the rest of the seekers of Darkness Naruto walked away and leapt back to where the Guardians of Light were standing dumbfounded.
"Sorry about that. No one has the right to call Namine a witch especially in front of me." Naruto said abit embarrassed at his outburst.
"Gosh. We understand. She is your family, right?" Goofy remarked as Naruto nodded eagerly.
'I really hope Donald doesn't say anything insensitive and piss this guy off.' Riku thought as he knew from Sora that Donald tended to rub people the wrong way.
"Now then. Its time for Namine to come out." Naruto declared as Kairi looked at him with a determined smile.
"Will she be okay?" Kairi asked worried with Naruto patting her shoulder in reassurance.
"Don't worry. In a minute she will be her own person and the first one to hug her will be her delighted brother." Naruto said in a teasing voice. Kairi could almost feel Namine flush in embarrassment and happiness inside of her.
Naruto then took a step back and grasped his fist as if holding something in his hand and pointed his hand at Kairi. A beam of light shot from his hand and hit Kairi who gasped. A pure white light surrounded her before a pink heart exited her body and started to float towards Naruto.
"Banbutsu Sōzō no Jutsu (Creation of All things jutsu)." Naruto whispered as blue energy was formed in his right hand and red energy was formed in his left hand. He grasped his hands together as the two energies fused together before a bright light enveloped Namine's heart.
After a few moments the light vanished and Namine was restored to a complete body and self. She looked the same as she did prior to going back into Kairi. She had her blonde hair which was currently abit longer than Kairi's and Xions with it draping abit over her right shoulder. She had similar pale and yet somewhat tanned skin from Kairi along with the same overall blue sky-blue eyes. She had rosy pink lips and rosy cheeks. For clothing she wore a simple white strapped dress that was lacy and exposed her arms. The dress ended mid thigh showing her legs and thighs which only ended with her simple light blue sandals that showed off her toes and had yellow flowers on the top.
"I am me." Namine gasped as she took her first breath as a new being and looked at everything with awe.
"Namine!" Roxas said excitedly as he still remembered their promise to meet and talk to each other for real prior to them going back into Sora and Kairi.
"Namine." Xion said warmly as she saw her 'sister' enjoy her new life as not Kairi's shadow.
"Well, I am be dammed. He actually created a new body for Namine." Lea said with a chuckle.
"Namine. I still need to thank her for real!" Sora said with a wide grin as he wanted to in the dream world. AN4:
"Congratulations Namine. You deserve it." Riku said quietly as he felt guilty. He realized now the entire time she was her own person he was only concerned about waking Sora up without getting to know Namine herself.
Aqua and Ventus shared a smile at the happy reunion as despite not knowing her they could still feel happy someone else was getting the existence they deserved.
"Gosh! I am so relieved that Namine could come back!" Mickey said happily.
"Welcome back Namine." Kairi said warmly to her former Nobody and now 'sister'.
Namine smiled back and turned back to Naruto.
"Thank you so much bro~~" Namine said tearfully before she gasped when she saw Naruto.
"What's wrong?" Kairi asked urgently.
"Naruto… He's!" Namine gasped as everyone turned to Naruto and gasped.
Naruto's eyes were closed but there was a streak of blood running from each eye and flowing down his face.
"Naruto!" Kairi screamed as she ran towards Naruto who despite his condition tried to give her a reassuring smile.
"Sorry. I didn't mean for you guys to see me like this. Especially my sisters." Naruto apologized as he put a hand over his eyes which stopped the blood flow but everyone could still clearly see the blood trail down his face.
"What happened?! One minute you somehow created Namine a new body and next thing you are bleeding from your eyes!" Sora shouted as the rest of the guardians crowded Naruto who still had a smile on his face.
"Honestly. It's a side effect or rather a cost of me using powers without mastering it first." Naruto joked but nobody was amused.
"Let me heal it!" Aqua demanded but to her shock Naruto shook his head.
"Sorry. Magic does not work very well with these kinds of injuries." Naruto said with a sigh.
"Anyways. My body is already repairing the damage so I just need a bit of time." Naruto told them with a grin.
The light reluctantly allowed Naruto to heal on his own especially when Naruto removed his hand showing his closed eyes. They were no longer bleeding and the trails of blood had dried up so he was just closing his eyes at the moment.
"Why would you go so far for me?" Namine asked feeling guilty her brother was now in pain due to saving her.
"Because you are my sister and I love you. Just as I would for Kairi or Xion." Naruto told her simply as Namine held back tears of happiness.
"Brother. Your eyes… They were…" Namine stated as Naruto perked his head up.
"I see. So, you saw them huh?" Naruto asked as Namine quietly agreed.
"Huh? His eyes were bleeding. We all saw it." Lea asked in confusion before Namine shook her head.
"No, I mean his eyes changed completely. They were no longer Sky blue like mine but completely purple. They also seemed to be rings circling around the pupil before they started to bleed." Namine revealed as everyone looked alarmed. AN5:
"They changed?!" Aqua asked in shock.
"I have never heard of a power that changes someone eyes unless they turn Amber as a sign of someone succumbing to the darkness." Mickey remarked as everyone glanced over to the Seekers of Darkness who all had amber eyes as a result of a piece pf Master Xehanort heart inside of them.
Xion bit her lip as she knew prior to her brother and Sora helping gaining her back she also had amber eyes. It was a result of her being a replica being brought to the future and infused with Xehanort heart before it was purged out of her.
Naruto chuckled as everyone looked back at him.
"Don't worry its not something nefarious like I lost myself to the Darkness." Naruto assured them as they let a sigh of relief.
"Okay so I guess I haven't told you much about what chakra is. Basically, its both the life force and the 'magic' of my world. Everyone in the world has it but not everyone can use it for more then just surviving." Naruto explained as he nodded to Kairi indicating she had chakra too even if she could not access it.
"There are certain people in my world who have special chakra that can go into their eyes. We call it Dojutsu or Visual Prowess. It changes their natural eyes to stronger chakra versions like mine were." Naruto further explained before he got a smirk on his face.
"My 'purple eyes' are called the Rinnegan and let's just say they are special even for special eyes. Matter of fact I can only think of 5 other people who have used these eyes in the entire time of my people." Naruto thought as Hagomoro, Madara, Nagato, Obito and Sasuke flashed in his mind. AN6:
"Wow. To think your people would have so many powers that I could not even imagine." Riku said in amazement as Naruto sent him an easy grin.
"Chakra is a power that can become many things." Naruto mused before secretly sighed.
'Although most of history it was a power to sever bonds not make bonds unlike what Old Man Six Paths wanted.' Naruto thought sadly.
"Anyways one power of Rinnegan is to create beings and breathe life into them. It was that power that allowed me to create a true body for Namine." Naruto explained as he gestured to Namine who smiled shyly in his direction.
"But as you can see. I didn't have any practice using this jutsu so my body paid the price. Not that I regret it for a moment." Naruto sighed before getting firm in the end.
"To create life on whim? This brat…" Terra-Nort hissed in anger.
"Tch. All this power and all he cares about is protecting and saving his 'sisters'. Pathetic." 'Riku' mocked crossing his arms.
"Ah! What a player of the game. Willing to take high risk, high reward gambles is the most worthy foe." Luxord commented as he smirked.
"….." Saix said nothing deep in thought as he glanced at Namine with an unreadable expression.
'What is this feeling? This annoyance of them being together in a group? Is this jealously? NO! Darkness does need weakness like friends!' Vanitas thought to himself arguing with his basic nature. AN7:
Marxluxia shared a look with Larxene as if a memory was trying to worm into their hearts but could not reach them.
Ansem Seeker of Darkness looked bored while Xenmas looked stoic. Young Xehanort looked interested as if trying to figure out how to exploit Naruto's new powers. Master Xehanort looked neutral but his eyes did narrow.
'Dammit! Can the Master's plan be salvaged at this point?!' Xigbar thought furiously.
'I need Kingdom Hearts to be summoned and we need the X-blade to do so! But now we are down a member of the 13!' Xigbar thought angrily as Xion was no longer a Seeker of Darkness.
'My eyes are nearly done healing.' Naruto thought as he turned to Namine.
'She deserves the tightest hug in existence for all she has had to go through.' Naruto thought sadly but getting brighter as he imagined Namine getting a hug and feeling his love her her.
AN2: Honestly, I feel the entire Naruto birth to Kurama sealing took under an hour due to how fast pace it was. Minato using the Reaper death seal and their final words must have only been minutes due to their injuries.
AN3: This is Xion post KH3 outfit (during the credits)
AN4: Remember Naruto arrival altered fate so Sora never had to use the power of waking on everyone so he never ended up in the Final World. So, it also means he never had the conversation with Namine's Star either.
AN5: Wow shocking right?! The Rinnegan! Although if you look in chapter 1 there is a HUGE hint, he must have had the Rinnegan!
AN6: I am explicitly NOT counting the Six Paths of Pain which were just corpses or Black Zetsu (who possessed Obito body but did not have it himself.
AN7: For people who have NOT played Union Cross (or watched the ending third cutscenes) SPOILERS: Vanitas is one of the 'wills' of Darkness that travelled with Ventus to our time from the past.