A/N: This is my very first attempt at fanfiction writing recently I just watch Aoki Hagane No Arpeggio ARS Nova Cadenza and decided to write this because It's been lingering in my head since I finished watching and decide to give it a go.

A/N: Some characters might be OOC a little bit different with what you know so bear with me

"normal talking"

'thinking'

"Bijuu or sealed or sentient beings talking"

'Bijuu or sealed or sentient beings thinking'

WARNING If you haven't watch the movie then I suggest you watch that first before reading this fic because SPOILER ALERT

Currently looking for Beta Readers if you are intrested please PM me

Disclaimer: I don't own Aoki Hagane No Arpeggio or Naruto/Naruto Shippuden those franchise belong to their rightful owners except my story. Thank you

Prologue Konoha Oct.10 09.30 p.m

All is peaceful in konoha with the celebration of the 'death' of the Kyuubi No Kitsune at the hands of the Fourth Hokage or the Yondaime Hokage. The conditions are very lively with liquor pouring down one could easily hear the children also having fun in this festival it was a grand festival sadly one orphan didn't enjoy this festival. That orphan is Naruto Uzumaki.

With Naruto

A seven year-old Naruto is currently trying to sneak out of his apartement to avoid the mob that comes every night on his birthday for the 'fox hunt' the blonde jinchuuriki was trying anyway he could to remain hidden hoping to avoid whatever this dreadful night had to offer. Currently the black and orange wearing blonde was trapped in an alleyway being beaten by the civilian and many ninjas ranging from chuunin to jounin the ANBU decided to join one had a mask of a bear the second had the mask of a eagle the third had the mask of a rat they were shouting the classical things such as "Die Demon." or "This is for my family!" The ANBU with the rat pulls out his tanto from his back and says "Now let's end this demon scum once and for all!" before he could kill our blonde hero multiple shadow descends making the ANBU nervous the eagle shouted "It's the hokage run before he kills you!"

The mob quickly scatter to whatever they were doing before when they saw their leader which soon followed by the ANBU and The Jounin and the Chuunin but one was quite stupid and decide to throw a kunai to the blonde straight to the chest not reacting fast enough the blonde got hit and knocked out a few seconds later due to the pain. The hokage quickly picked up the boy and ordered his anbu to search for the mob and quickly execute them as part of the law with that done he shifted his attention back to the blonde and quickly shushin'ed to the hospital while thinking 'I'm sorry I'm not fast enough to save you Naruto-kun'

Mindscape

Naruto wandered through what looked like sewers/ he felt like someone or something was pulling him as he moved in auto pilot to reach his destination a giant prison cell with a sign that read "Seal" on it.

He paid no mind about the bars and slipped through quite easily and went further through inside the cell he took a few steps and found two woman on the ground one was panting trying to regain her breath the other was comforting the first woman. The first woman was beautiful she had red hair and red eyes. She wore a black and orange kimono and flat black shoes. She had the body of a goddess and what surprised him was the 'extra appendages' he saw on her head that look like fox ears and more importantly the nine tails were flowing behind her back. The second woman is also beautiful she had silvery white hair and she has red eyes but for some reason she rarely open's them except when she was near the first woman. She wore a black sleeveless shirt extremly-short black shorts and black boots with stockings. A flower of some sort is always present either attached to her hat or onto her hair bow. She like the first woman also had the body of a goddess.

"Um…. Excuse me miss are you alright?" he asked

She turned her head in his direction and her eyes widening when she saw him. "Naruto-kun! You're here!" she said as she ran to him and enveloped him in a hug with tears in her eyes

"I was so scared for you when I saw what was happening outside" said the woman as she continued to hug him. "Yes it was quite terrifying I had a scare myself I thought I could lose my only family that I have since a long time ago but I quickly calmed down knowing you would be okay." Sait the other woman.

"Do I know you miss? How do you know my name?" asked the boy a little embarrassed with the first contact he ever shared with a woman.

She released the hug and took a few steps back while looking at the second woman looking for confirmation to tell the truth or not with a nod she confirmed and should tell the truth with no exaggeration. She lowered her head, She mumbled "I'm so sorry Naruto-kun, I am the reason why everybody hates you, why you are all alone in this world." She said with tears freely flowing through her red eyes

"How is it Possible I mean I never saw you before how could you be responsible for what the villagers call me?" asked the boy.

"Do you know of what happened seven years ago when konoha almost face total destruction?" replied the woman.

"Yes the Kyuubi attacked the village and killed a lot of people before the yondaime killed it" answered Naruto.

"No that's not entirely the true, you see Kyuubi cannot be killed due to being a tailed beast even if it sustained important damage it would just reform somewhere else after some time" said the woman continuing "The yondaime had no choice but to seal the kyuubi, he sealed it into a newborn to ensure the mass of chakra could be absorbed and not destroy the chakra system of an already developed body."

Naruto's eyes widen as he realized what she was about to say next and where this story is going,"Me….." he said in a low voice.

" I truly am a demon just like what the villagers say the one who took so many lives" he continued before she cut him.

"You are wrong Naruto-kun, I am the kyuubi and we are two different entities" she said.

"Then that means we are….."

"Yes we are in the seal a dimension that you call your midscape" she said.

"When you were stabbed earlier you got knocked out pretty quickly due to the pain that you felt" She added.

"I see and I got a feeling that you did not want to attack the village seven years ago though I still have a few questions were you sealed inside someone before? Is this person close to me, if yes who is it?" Naruto asked.

"The answer to those questions means we need to time travel seven years before. i can't remember what exactly happened that day in detail why don't you try asking the Hokage I'm sure he could help. I'm sorry I can't answer those questions Naruto-kun" She told him.

He closed the distance between them and then completely surprised her when he hugged her and said " I believe you Kyuu-chan, you are the only one besides Jiji whoever helped me in all my life" "Ehem" "and you too though I don't know who you are"

She was surprised that he did not hate her and returned the hug and said "Do you not fear me after knowing what I am?"

"Why should I fear you you are the most beautiful woman I ever saw and you can't be a bad person or a bijuu" he said "whichever you have been called in the past hehe" he added sheepishly

She blushed at the answer then chuckled because of what he said then she shed more tears and smiled at him "Thank you, thank you so much Naruto-kun I'm so relieved that you don't hate me. But you should know that my real name isn't Kyuubi, Kyuubi is my title my real name is Miko"

"It's nice to meet you Miko-chan, I am Naruto Uzumaki Future Hokage of Konoha!" he said with a smile and determination in his eyes.

She blushed again at the nickname he gave her "It's a pleasure to meet you too Naruto-kun I will do everything in my power to help you achieve your dream. Now I believe that someone else is waiting to introduce herself" She Said

"Finally you're done I've been waiting forever but enough of that. hi there Naruto-kun nice to meet you my name is Musashi." The other woman now identified as Musashi introduced herself.

"Pleasure to meet you to Musa-Chan I am Naruto Uzumaki Future Hokage of Konoha!" he said with the same smile and determination he showed earlier.

She Blushed a little at the nickname but quickly hid it and smiles "I guess it's my turn to tell my story huh? Very well." She Said

Waiting with anticipation Naruto started to get interested and started to listen intently

"My story begins when me and my sister Yamato been approached by a human called Chihaya Shouzo at first I was shy because I witnessed this man able to beat our destroyers even though our weapons are far more superior that is when my sister started to get curious with humans and started a conversation" She Said.

"So what was he like? You know on a personal level" Naruto asked

"Huh…. I wonder"

FLASHBACK PART I

Yamato and Musashi just got through another battle with humans this is normal in their lives but they were curious why did they lose so many destroyers in this battle well suddenly a ship came closer to them and from that ship came out a man he is rather tall and well-muscled with an overwhelming presence he has short black hair,weepers and a short beard he wears a white navy uniform, which consist of white jacket with shoulder pads, white pants and white captains's hat with black visor. This man is Chihaya Shouzou currently he was boarding the two mysterious flag ships and spotted Yamato. What he saw was set of chair and a table filled with tea and snacks with yamato sitting on one of the chairs. apparently he was been expected "Welcome aboard Chihaya Shouzou I am Yamato the flagship of the fleet of fog please have a seat"

Without asking questions he took a seat and said "It looks like I've been expected to arrive here so thank you for having me on-board. and I'm sorry to be blunt because I'm a very busy man and it looks like you have some questions for me so what is it you like to know?"

Yamato smiled and said "It is understandable, Very well I have a few questions during our first battle we witnessed the destruction of our destroyers and in such large numbers too.our weapons are far more superior so why did we lose the battle?"

After hearing that he smiled and said "Did you mean the fratricidal battle?" Yamato nodded and said yes. knowing that he continued "That's because you fell for our battle strategy."

Yamato got curious and asked "Strategy? If we let humans onboard we can use it right?"

He nodded and said "That's Right"

Then he asked "What are you specifically, I noticed that you took the appearance of WWII ships so I would like to know for specific reasons"

Yamato took a few seconds to think her answer when she found it she replied "We are weapons who battle abide with the Admirality Code."

Understanding what she meant he said "It's true that you are a weapon but it doesn't mean that you have to fight."

Surprised by that statement Yamato said "if that's so, we don't have raison d' etre"

"Just try to understand living from others" He said

With that Yamato called Musashi who has been hiding behind Turret B and asked "Can you explain what he said?"

Knowing she has become the center of attention musashi slowly get closer to her sister and said "Admirality Code violation" with that answer Yamato returns her attention to the man in front of her and asked "Shouzou-san besides following orders in the war what is your motive?"

He smiled then replied "There is no particular motive I'm fighting for my own family."

"You mean fighting for a mere fraction of human race" said Musashi

He laughed a little and pulled out a photo from one of his pockets gotten curious Yamato and Musashi got a little closer so they can have a good look of the picture Then he said "This is my wife Saori and my son Gunzou. My reason is not noble as you thought but humans look after each other like a family."

Yamato smiled when she hears his reasoning and said "Beautiful, that means Musashi is my family too I will treasure her."

He smiled then said "That's right, since you were born together that means you are siblings."

"Then since I'm the first one I'll be her big sister" Said Yamato

Thinking what she had said Musashi said "That means I'm her little sister"

Nodding in happiness Yamato then asked "You, who created us, are called our father right?"

He laughed a little and said "I see"

Then Yamato asked for Musashi's opinion "What do you think?"

Musashi said "I object" knowing where this is going Yamato then said "Admirality Code hadn't been used for a very longtime giving the right order in the right situation will be our responsibility."

Knowing She can't argue back with that fact she said "I understand then let's try making a change"

Chihaya Shouzou was thinking his next words. Then he said " I was terrified as well but since I got a chance to talk to you I did my best to finish this conversation." Then he looked at Musashi "You who were born from our bond were called individuals Musashi." After he said that he left.

FLASHBACK END

"Wow he seems really nice for a person I never thought that he could understand you." Said Naruto

She smiled the continued "Yes I was surprised as well then a few months later he came back and wanted to have an agreement between humans and the fleet of fog but then, that is when all hell broke loose"

"What happened?" Asked naruto

She found it rather hard to answer due to the emotional strain but she answered with a cold tone "Some of his men disagrees with this decision of negotiating peace and shot him before the negotiation could be finalized"

Flinched due to the coldness of her voice Naruto said "That is horrible I thought they were supposed to understand and protect one another"

Musashi was surprised because he said the same thing as her after it happened. Smiling while thinking how funny it is to hear the exact same words again she said "Because of that I lost all rational thoughts and then I massacred each and every one of them while my sister watched in horror. i didn't plan to stop there my sister and I started to fight me for my own reasons and the same goes for her."

"So how did it go?" asked Naruto

"It was no problem eventually I came out on top but what I didn't realize is that my sister's core got transefered into a nearby submarine and fled. Thinking I have won I followed the Admirality Code and since I'm the only superbattleship left I became the sole flagship for the fleet of fog"

"Is it hard to lead an entire fleet by yourself? And how long were you able to lead them?" asked Naruto

She almost laughed when she heard that question because it reminded her of her time as flagship some were joyous others well not so much but that what makes it fun. coming out of memory lane she answered "Well it's not that hard but there are few quirks here and there but who cares about that it makes things fun. and for seven years I think I lead them after the first few years I was scared thinking I didn't do it right and was quite surprised when I hear they want me to remain leader"

Amazed by how long she was able to lead a fleet with so many ships on her own Naruto then got curious then asked "if you were liked by your fleet then how did you sink?"

She thinks for a little while trying to remember how she was sunk it was quite an unpleasant memory. quitting memory lane she said "Hmm…. I Wonder….."

FLASHBACK PART II

After getting past Diomede Island and the Student Council with the help of Kongou and co the I-401 and her crew finally reaches the atlantic their joy was cut short when a supergraviton blast apeeared out of nowhere and nearly made their Klein Field disappear meanwhile on the surface "I'm surprised you made it this far I never thought the Student Council could get passed but then again with Kongou and the others helping that was expected now disappear and I will sink you here just like Yamato." With that statement Musashi started to deploy all her torpedoes and missiles at the 1-401 this action was soon followed by surrounding light cruisers the I-401 survived then Gunzou said " Musashi, my father believed he could reach mutual understanding with mental models. So am I! Please! Can you give humanity a chance to negotiate? My father trusted you and I believe he still does"

Decided that she had enough Musashi smiled and said "You're not my father and humanity has lost that chance when they decided to sacrifice father so they can continue the war. A fake Yamato, a fake father I'm tired of playing puppets" with that she prepares to fire multiple supergraviton cannons at once intending to sink I-401 for good but what she didn't expect is the mental model of I-401 came out of the submarine and merged with Yamato thus making Yamato appear once more shocked by this she ceased her attacks temporarily and quickly sets up a mental link "Yamato i'm glad that you have killed that mental model and finally I'm able to see you again" said Musashi.

But much to her shock 'Yamato' has made the surrounding ships to cease fire and started to fight back seeing this musashi smiled then said "You shouldn't do so Yamato since you killed her just to see me, you're no different than those humans who have killed father. A double cross ship who was sunk by me I shall sink you once again."

Sighing Iona/Yamato said "I have important messages to tell you. I love you."

Shocked hearing what Yamato said Musashi take a few steps back and asked "NO, who are you? Are you Yamato or the mental mode of the I-401? Which are you?!"

"Now I understand Yamato had always loved you" said Iona/Yamato

Denying this Musashi said "You lied! Yamato get rid of this puppet quickly!"

Iona/Yamato said "back then I couldn't hurt you. No… I gave up on you. So now, through my existence I will stop you."

Hearing this Musashi got angry and said "stop me you say? You don't know anything"

Iona/Yamato said "I do, you don't have a place where you belong to nothing can pacify your anger since then in fact I should have stayed by your side all the time."

Still denying Musashi then said "You're wrong! I didn't feel angry! Humans are foolish so I decided to continue the war and destroy them abide by the Admirality Code!"

Iona/Yamato started to explain the value of humanity and said that she treasured musashi as her family because she is her big sister

Hearing more than enough Musashi said "hate,hate,hate,hate!hate,hate,hate,hate,hate!" flash of yamato appears on her memory quickly erasing the picture out of her mind "Everything should just disappear!" She screamed

With that Musashi charges her supergraviton and activates her Mirror-Ring System Iona/Yamato charges forward and scrapes musashi's sides with the two mental models looking at each other after scraping for a bit Iona/Yamato's ship started to descend into the black hole that has been created by the Mirror-Ring Sytem by Musashi and disappears thinking she won she thought it was over until suddenly a portal opens and Yamato appears above Musashi with her own supergraviton cannon ready to fire shocked by this Musashi quickly deployed her Klein Field so she can protect herself but due to gravity and the pressure of the blast from Iona/Yamato's supergraviton cannon the Klein field broke and they crashed onto each other 'so this is it huh? getting rammed by my own sister with graviton blast to make it worse. actually now that i think about it her words do makes sense and holds truth. maybe i should have listened and believed her in the first place.' sensing she is going to disappear she falls back and quickly disappears leaving Iona/Yamato wondering.

END FLASHBACK

"I was supposed to die but I don't know how and i don't know why but my core suddenly got transported here seven years ago on top of you apparently the Yondaime didn't realize this and sealed along with Miko over here now you know my story But curiously my core is located on a seperate seal than her's so i don't know. so yeah now you know my story."

Naruto was too stunned when he heard what happened and got lost halfway through the story Snapping out of his trance he mauled over what he had just heard and he only have a question "can you give me training? i needed the power to protect my precious person that also implies too you Miko-chan" He asked

"Hmm…. I like your reason why you needed power of course we can train you but it is sort of hard to answer but no worries I got an idea I will teach you about the basic starting from math science etc and I will also work on your Taijutsu and Kenjutsu while Miko will teach you about chakra and Ninjutsu also Genjutsu but since your chakra reserves is abnormally big she can only teach you the basics including how to dispel a Genjutsu is that okay?" She asked

Thinking about his training plan Naruto could see the benefits and after a few minutes he finally decides "All right then I accept these training but I got two other questions what is the catch there has to be something and you also mention about your ship form can I see it?"

"That is an excellent question other than you have to leave the village for aprroximately 7-8 years there is no other catch. And for your second question I hope you are ready for what you see" She said

Understanding the catch he said "O.K then I guess it's necessary for me to leave that long and I think could handle seeing your ship" After he said that a ship appeared out of nowhere it was incredibly huge it has a length about 263 meters and it looks as tall as a 20 story building but what really caught his eyes is the weapons there are 3 cannons with three barrels each if he could measure the size of it is probably 46 cm it also have many other weapons like 12 15.5 cm and so many more he lost count other than the weapons what caught his eye is the color it was colored black and orange and it reminded him of himself infact he was so shocked that he could feel his jaw drop all the way down to the bottom if not longer. this caused the two tenants to giggle because of his reaction "Told you that you will be shocked so what do you think? Also I have been thinking for quite some time I don't have chakra that means I could safely go without causing any harm to you so let's just say that I could get out of here Put My core in a nearby chair on your room in the real world and out of this cage it will take time for me to reform my mental model but it should be quick probably about a few hours in the real world so what do you say naruto?" She asked.

He felt his jaw drop until he returns to reality he quickly retracted his mouth back into place and said "that is the most awesomest thing I have ever seen in my seven years of living in this world I guess I really am not ready to see it. That is quite interesting okay then I rather see you in person than meeting you in my mindscape"

She smiled widely at his answer"Well then I guess I better get started oh by the way can you change this place a little bit how you do that? Well you just need to think about it since this is your mindscape and secondly can you rip the seal a little bit just 1/10th so we could see hear smell and all that because I admit it's quite boring in here."

He did as he told and the landscape quickly changed into a grassy field with a gazebo in the middle with a table and chair and a few teacups to drink tea the cage is gone and the seal is now became a necklace on Miko's neck "This is much better than before thank you very much Naruto-kun now sice the seal is around my neck so it gave a little bit of freedom and would you look at that I could see hear smell the outside world through you so I guess it's a bonus" She said with a smirk.

"Right with all that said and done I guess he should return to the real world and get a goodnight's rest at the hospital. how you do that? Well just imagine an exit and out you go" Said Musashi.

Naruto again do as he told and returned to the real world and started the unsealing process locating the seal on his wrist he carefully unseals Musashi's Core he noticed a chair beside him and he gently put Musashi's Core keyword gently because it's sort of hard to move but he did just that so tonight he gets to sleep and wait for the surprise tomorrow

Well that is the opening for this story if you want to see more wait for the next update after the next review so I guess I will see you next time Peace!