Summary: "New world? No problem. I can live a peaceful life here." Naruto lived his life peacefully in pure enjoyment. But as always, Naruto Uzumaki would get dragged into something big sooner or later. That moment occurs when he saves a special person. This story is about the Sage who got thrown into this world and the lonely demon princess who wanted nothing more than a normal life.

"Naruto." Speech

'Naruto.' Think

Past Events/Flashbacks

Technique, Magic, Jutsu

Pairings so far: Naruto x Mio

Basara x Yuki

Warning: English isn't my native language.

Disclaimer: I don't own any anime/manga that will be used to write this multi-crossover story.

Two years passed by faster than Naruto noticed. He stood in his apartment before his mirror and looked at himself in the mirror. His entire physic had changed over the last two years. For the past two years, he trained every day from sunrise until night, and now the results spoke for themselves. Not that he would stop with this type of training routine. He would continue to train like always.

His entire physique was muscular, not bulky, but no fat was left. Everywhere were the muscles visible he gained in the last two years. He already had a six-pack at the age of 10, something almost impossible for a kid, but Naruto was a particular case.

He trained so intensely, and because of his faster muscle growth through the rapid healing from the fox inside his body, his muscles grew fast enough that even with ten, he had a six-pack. Not anyone knew that since Naruto always trained by himself and had no social contacts besides the third Hokage or Sensen Iruka.

Sadly, he had no time to visit the Ichirakus because his training was more important to him. He only saw them once a month when he took some time after school before he would begin his extreme training regime for the day after studying was finished for the day.

Overall, he had a lean physique with potent muscles but nowhere near the bulky type of muscles. They were undoubtedly visible, but his body looked normal from the outside. No one would think he had this physique when he wore something.

Naruto dressed, packed his bag, took his keys, and left the apartment. He had already eaten breakfast, which meant he was ready for another day of intense training. Since today was Saturday and he didn't need to go to school, he could use the entire day for his training. When it came down to the theoretical part of the school, he was finished with everything he needed to know. He went even further and got extra materials on chakra theory from Sensei Iruka at his request since Naruto was already done studying everything taught in school regarding history or chakra.

Normally, only Genin would learn the next steps from their Jonin Sensei, but Naruto was already done with everything. He changed entirely in the last two years. He rarely talked anymore since he was too focused on training, and speaking with others became a rarity in his life. It was almost weird talking to other humans for Naruto since he only trained to get stronger.

When was the last time he talked to someone other than Sensei Iruka, the Ichirakus, or the third Hokage… he didn't know. But he didn't care, knowing he still had a long way to go. He was only at the beginning of his dangerous journey in this cruel and rotten Shinobi world. He was the Jinchūriki of the Nine-Tails. Many would be after him, and he had to become as strong as possible to survive. That was his only mission right now. He was becoming stronger and surviving in this world. For that, he trained like no one else his age. The others from his age meet each other and gain happy memories like it was normal in childhood, but Naruto didn't have this luxury.

He wasn't normal from the beginning. He never had the chance for a normal childhood since all the adults in this village hated and ignored him. They even told their children to stay away from Naruto, making it impossible for Naruto to have a normal childhood.

Naruto looked towards the horizon from a roof he landed on, seeing the sun was about to rise. He looked at the sunrise for 2 minutes before jumping away and continuing his journey towards the isolated training ground no one used besides Naruto. At least no one appeared there in the last two years while he trained his Taijutsu there during the week or while he was there the entire day on weekends.

Naruto looked down on the streets while he flew over them, seeing some villagers already on the roads. Some villagers even opened their shops on weekends. He didn't feel anything for those villagers. He once felt hatred towards these bastards who made his life a hell, but after all the training, the dreams of the older man, and his accomplishments, he became disinterested in those villagers. He didn't care what happened to them and what they were doing. He began meditating a year ago, and that helped him to sort out any unnecessary emotions and thoughts he had.

He felt how the fox inside of him became increasingly active the more hate he felt for the villagers. He even daydreamed on rare occasions how he ripped the villagers apart and let the fox help him. He would never let himself be dominated by someone else. Not a villager and not the giant fox inside of his body. His will would never break, no matter how hard the fox tried to influence him.

Meditation also was a good control exercise for his massive chakra reserves. He didn't know how much precisely he had; he only knew that he had the greatest chakra reserves in the entire village. Even the third Hokage didn't have as much chakra as Naruto himself. That meant his natural stamina was extremely high, and with his intense training over the years, his chakra only became more and his stamina naturally, too. Even without the raise in chakra, his stamina increased because of the intense training, too.

He could train more and harder with every week that passed by. He could do more intense exercises or reps at the same time as the previous week.

Naruto landed on a roof and concentrated chakra in his legs before he pushed himself forward and flew again through the air. He continued his journey towards the training ground.

Not far away from Naruto walked a specific Taijutsu Master around and thought about the next challenge he would confront his rival with. He had one eye closed, his right hand at his chin, his gaze directed towards the sky, and a little frown on his face.

From the corner of his eyes, he saw how a boy not older than 10 or 12 years old jumped over the roofs towards the training grounds. He opened his eye, took his hand from his chin, and became a focused gaze. 'A student?'

It was basically impossible to see a student jumping towards the training grounds at this early hour on a Saturday. He loved the idea that the young people increased their flames of youth this early in the morning. A lovely thought in his mind.

But that would still be very unusual for a student. Taijutsu master Maito Gai decided to follow the young boy and see what was up with the young boy he saw for a few seconds. He jumped after Naruto, and only after a short distance, he saw Naruto as he jumped from roof to roof and later on from tree to tree towards an isolated training ground.

He observed Naruto while he began his training. Gai was hiding behind a tree and looked at Naruto while he was on a handstand, walking around on both hands. Naruto had a focused gaze with a fire in his eyes, a fire so intense never seen before by Gai. Something was driving this boy forward. Something so big and strong that the boy in front of Gai's eyes trained so hard.

Just looking at his physique was enough for Gai to realize some things. The boy had a lean physique at such a young age. That meant he had to train extremely hard for two or more years at least, but even with 2-4 years' worth of training, a young boy shouldn't have this lean and muscular physique.

Gai had this physique at the age of 16, and he trained his entire life basically to get this physique. He saw the whisker marks on the cheeks of the boy and realized who that boy was. 'Naruto Uzumaki, the Jinchūriki of the Nine-Tails. That changes everything. With the fox inside of his body, it is indeed possible to have this kind of physique at this young age, but how hard trained the boy?'

Four hours later, Naruto was doing pull-ups at a branch. Gai was still watching Naruto without thinking about ending his observation. He watched Naruto with a focused gaze. Naruto hadn't made a single break since he began his intense training. Not even a single second was wasted during this entire time.

'This boy… he trains with a willpower I have never seen in my entire life. Even I had to take some breaks between my exercises. His entire body is shaking, but he is still going. His mind controls his body and doesn't let him rest even a second. What is driving this boy so much to train like this?'

Thirty minutes later, Naruto walked away from the spot where he did his pull-ups from a second ago. He walked towards a specific place in the nearby forest, and Gai followed him. A little clearing with a flat boulder where a single person could sit became visible. Naruto stopped in front of the flat boulder for a second and looked up into the sky. His blue eyes showed nothing but accomplishment.

He looked down at the flat boulder and sat on it in a lotus position. He placed both hands on his knees and closed his eyes. He took a deep breath and exhaled slowly. 'He is meditating.' Gai could tell it just from looking at Naruto.

Naruto was barely moving; only his chest moved slightly when he breathed. Naruto didn't feel or sense Gai since his mind traveled to another place he was pretty familiar with. When he opened his eyes again, he was in the backyard of the little house he had seen in his dreams every time. One month ago, he appeared here every time he was meditating.

He even had his own body now and could walk around and look at the things he had never seen when he had only looked at the older man in his dreams. It was like looking at a videotape where you only have one angle, and that angle wouldn't change. Naruto saw the older man again with his long, straight gray hair. He walked toward the older man and stood beside him while he was punching the massive boulder in front of him in the backyard. Naruto tried to see his face, but as usual, he couldn't. Every time he tried to look closer at his face, it was shadowed by his long hair.

'Who are you?' Naruto thought about that a lot in the last couple of weeks. What did this man want from him? He was sure this man wasn't just a product of his imagination. This man had a secret, and he wanted something from Naruto. He concluded after countless hours of meditating and thinking while he trained.

He turned around and looked at the scenery. He already tried to locate the village he was in, but he couldn't recognize it or find any clues in the "real" world where this village was. From the landscape, he would say he was in the land of fire, but he wasn't sure. He could also be in one of the neighboring smaller lands.

He couldn't leave the backyard; that was his only limitation. Even when he could walk around in the backyard and even enter the house, leaving the property of this older man was impossible. He also couldn't see any villagers from this village whenever he came here outside of his dream by meditating.

Naruto looked at the older man and saw how he ended his punches and sat on the ground. That was the first time he saw the older man sitting down on the ground in a lotus position. He sat there for a few seconds and did nothing. Naruto wanted to walk towards him but stopped when the ground shook slightly. Little cracks appeared around the man in the ground, but before Naruto could see what came out, he was thrown out of this world and opened his eyes to the real world.

He blinked a few times, a bit confused, and shook his head while he held a hand at his head. 'What was that? When he was doing this… whatever he was doing, I could feel something pushing me away.' He took his hand from his head and stood up.

Naruto narrowed his eyes, returned to his bag, and continued training. He was doing crunches so as not to overthink about it. He would see the older man in his dream again, and there, he was sure to get answers to questions he would get right now if he thought about what had happened.

'Something happened to the boy while he meditated. When he opened his eyes, he was confused for a second.' Gai walked away from Naruto with a clear goal: the Hokage Tower. He had to talk with the third Hokage about something important.

The third Hokage was puffing on his pipe before the door to his office was opened. He blew the smoke into his office and smiled. "I wondered when you would appear, Gai." The third Hokage laid his pipe on his desk and leaned back on his leather chair.

Gai had a severe gaze on his face, and that said something. "Lord Hokage, please allow me to train Naruto Uzumaki. I observed the boy today; he has more potential than any other Shinobi from his generation. His potential is unmatched when it comes to willpower and hard work."

"I don't have a problem with your request. He isn't a Genin yet; with that, he doesn't have a Sensei yet, so nothing stands in your way. You only must convince Naruto-kun." Hiruzen smiled slightly, but with a particular expression, Gai saw.

"Lord Hokage, is everything alright?"

Hiruzen closed his eyes and stood up from his leather chair. "I don't want to destroy your hope to train little Naruto; I will say nothing because of that. Only know that you will have trouble getting him as your student."

Twenty minutes later, Gai left the office determined to make Naruto his student.

Hiruzen looked out of the window and thought about the knowledge he had since he was a young man. The knowledge that no one but him knew. Someone trusted him with this knowledge because only Hiruzen could do the right thing, and no one else could. The person who entrusted Hiruzen with this knowledge knew that only Hiruzen could be trusted.

'I never thought I would meet the person you mentioned in the past. I hope you guide him well and that he is the one who can prevent the destruction of this world.' Hiruzen looked towards a picture over the doorframe and thought about the person in the picture.

'Please… guide him well. I will give him the scroll you left for him when he turned 11, as you said to me.'

Naruto and Mio were opening the door from the hotel room of Mio and Maria. "Maria!" Mio walked into the room and didn't see Maria. The room wasn't big, and normally, both should have been able to see Maria instantly.

"Maria?" Mio opened the door to the bathroom and couldn't see Maria. She returned to the hotel room where Naruto stood and looked at the beds.

"She isn't here… where could she be?"

"Don't you have her phone number, or can you communicate with her via magic?" Naruto looked at Mio, and she nodded.

"I can't call her via magic, but I have her number. I will call her." Naruto waited while Mio was trying to call Maria.

'I don't know why, but something is wrong.' He looked around and didn't see anything weird or out of the ordinary. He couldn't shake the feeling that something was wrong here but couldn't determine what it was.

He closed his eyes for a second and walked towards the windows. He opened his eyes when something on his face appeared. He concentrated, and afterward, the thing on his face disappeared again. 'The succubus isn't anywhere in Tokyo. Otherwise, I would have felt her.'

'But…' He looked towards the shopping mall he could see from the window. He felt a few presents he didn't feel five days ago when he last tapped into the particular thing he did just a few seconds ago. It was a technique he learned back in the elemental nations. It was a good tool for almost every situation.

"Your little succubus friend isn't in Tokyo."

Mio ended the call since Maria didn't answer. "What do you mean by that?"

"I didn't sense your little succubus friend in Tokyo. I have a special technique where I can sense every living being in a large radius, and I didn't sense the energy from your little succubus friend." Naruto looked out of the window. "We should go; someone is coming to this hotel room."

Mio nodded and trusted Naruto with this warning. She placed everything she owned in a different dimension, and both left the hotel room. Naruto and Mio were walking outside for a few minutes before Naruto stopped. Mio stopped, too, and looked at Naruto.

Naruto narrowed his eyes and closed them for a second before he opened them again. "They're coming."

Mio narrowed her eyes and looked past Naruto, where two people had appeared. She stayed slightly behind Naruto and even took cover behind him. It wasn't even intentional. She felt threatened, and Naruto gave her a sense of safety. Her body moved automatically in that situation.

"Look at that, the daughter of the former demon queen and a human. That is indeed interesting."

"Indeed, but we aren't here for them."

Naruto could tell that both were fallen angels. The right fallen angel had six wings, and the other had four. They were stronger than an average fallen angel with only two wings that even a newly reincarnated demon could defeat.

The fallen angel with the four wings said, "Can't we have some fun with them? I would love to kill the human, at least." The fallen angel with four wings had spiky brown hair and yellow eyes with black slits like most fallen angels. He was wearing a brown trench coat, black pants and boots.

"No. Our target is on the move; we don't have time for that." The fallen angel with six wings had long white shoulder hair and black eyes and wore a black robe.

The fallen angel with four wings sighed and looked at Naruto and Mio. "You both are lucky. When we meet each other again, I will kill you." Both fallen angels shot away and left the barrier.

Mio wanted to move, but Naruto held an arm before her. "Wait." Mio looked confused at Naruto before someone appeared in front of them. She looked past Naruto towards the new guy.

"What do you want from us, hero?" Naruto looked at the blond-haired hero he had already seen earlier. The same hero killed the werewolf-like demon with his spear shortly after Naruto overslept in school.

"I want the daughter of the former demon king. If you hand her over, nothing will happen to you, human. Step away and stay out of this. This has nothing to do with you."

Mio narrowed her eyes and took a step closer to Naruto automatically. "It's disrespectful to command someone without even introducing yourself." Naruto had a severe expression on his face while he looked into the blue eyes of the hero.

"My name is Takashi Hayase; I am a hero from the hero clan." Takashi had blue eyes and spiky blond hair. He wore the spirit armor on all four limbs typical for the hero clan, a blue uniform, and a blue cape. He held a spear in his right hand.

'When I remember correctly, hero weapons are sacred gears made by the hero clan. They can create their own sacred gears. They call it Hero Weapons.' Naruto made two steps forward and looked over his shoulder.

"Stay behind me." Mio smiled a bit and nodded. "Ok."

He looked forth again and said, "I'm sorry, but I won't give you Mio. I am her guardian if you haven't noticed yet. Whoever wants something from Mio, this person must go through me first before she can get to Mio."

Takashi closed his eyes for a few seconds before he opened them. "As you wish." He dashed forth and thrust his spear forward. Naruto raised his foot at the last moment and kicked the spear's tip down, making the thrust attack ineffective.

Takashi's eyes widened a bit when Naruto spun around and made a spinning kick while he jumped toward Takashi. Takashi pulled his spear out of the ground and blocked the strong kick with his spear. He slid back from the extreme force of the kick and stopped after a few meters.

Takashi narrowed his eyes and dashed towards Naruto again. Naruto stood ready, dodged the first thrust attack, ducked under the swing attack, and jumped back to avoid another thrust attack from Takashi. He narrowed his eyes when he felt how wind began to blow towards him.

He vanished midair before a blade of wind could split him in half. He appeared on the ground and made a quick kick. "Rankyaku!" (Tempest Kick) Takashi's eyes widened when he saw how Naruto created a wind blade with his kick. He didn't even see how Naruto did his kick. His kick was so fast that Takashi couldn't see it.

A tornado surrounded Takashi's spear before he made a vertical slash and created a wind blade like before. Both wind blades rushed toward each other, and when both hit each other, a strong gust of wind broke out from the point of impact. All present entities had to hold a hand before their eyes to protect them from the dust blown away. When the strong gust of wind stopped, Naruto took his hand from his eyes.

'As I thought, his hero weapon can control the wind.' Naruto jumped to the side and dodged a strong gust of wind Takashi created when he thrust his spear toward Naruto. Takashi appeared behind Naruto in midair and said, "It's over." He made a horizontal slash with his spear, intending to cut Naruto's top half of his body. Naruto looked over his shoulder and saw how the spear came closer.

"NARUTO!" Mio screamed when she saw how Naruto had almost been hit.

Naruto twisted his body in midair, and the spear missed its target. Takashi's eyes widen when he missed Naruto. Naruto was still rotating his body and kicked Takashi towards the ground. Takashi crashed into the ground and created a lot of cracks, and a lot of dust rose.

Takashi gasped when he crashed into the ground and spat out some blood. 'What the hell? What is that strength?' He stood up and wiped the blood from his lips before he saw how Naruto landed in a crouch before he stood up.

"Do you want to continue?"

Takashi gritted his teeth and raised his spear before he spun it over his body. A lot of air began to turn around Takashi. It was like the wind itself was being sucked towards Takashi. Naruto narrowed his eyes when, slowly but surely, a tornado formed around Takashi's body.

Mio had to create a defensive magic circle in front of her to protect herself. She looked at the giant tornado that had begun to form around Takashi and began to worry about Naruto, who had only stood a few meters in front of Takashi.

Naruto didn't move even when the air was trying to pull Naruto towards the tornado. Naruto used chakra to stand his ground. He looked at the tornado that had begun to move toward Naruto. He could hear the voice of Takashi.

"Try to defend against this, you bastard!"

Naruto's body was suddenly covered by a white aura when a deep crater formed under his feet. The air was even pushed away as if a shockwave was triggered when the white aura surrounded his entire body.

That was one of the few things he learned since he entered this world. Since he already trained his body like crazy and had done thousands of hours of strength training, it was clear that Naruto could use this technique sooner or later.

This was called Tōki (Fighting Spirit). The user gets surrounded by an aura of their life force/Ki to gain heightened offense, defense, and speed. It was similar to Sage Mode regarding the boost in physical attributes. Not as strong, but strong, nonetheless. Typically, only users of Senjutsu in this new world could use Tōki, but one could also achieve this technique after an immense physical training regime like Naruto. It was rare, but it was possible to squeeze out one's life force and surround oneself with it to get heightened offense, defense, and speed.

Naruto strongly concentrated his Tōki around his right fist before taking a special stance. He closed his eyes and waited until the tornado was right before himself.

"NARUTO, GET AWAY FROM THERE!" Mio screamed this while shielding herself with a defensive magic circle. The defensive magic circle was a basic defensive tool that all races could use that had the ability to use magic. If the user was strong enough, a defensive magic circle could shield someone against anything.

Naruto's eyes shot open when the tornado was about to hit him. Naruto made a punching motion with his right fist, and when he hit the tornado with his right fist, something unbelievable happened. A sonic boom echoed through the landscape inside of the barrier. Mio had to close an eye because the sonic boom was pretty loud.

The tornado was blown away by something like a shockwave. When Naruto's right fist made contact with the tornado, the tornado was blown away by something and dissolved instantly.

Takashi couldn't believe it… Naruto had negated his tornado with a simple fist punch? That couldn't be! That had to be an illusion or something! That was simply impossible!

"What… WHAT ARE YOU?" screamed Takashi frustrated.

Naruto's white aura vanished around his body, signalizing that he had canceled his Tōki. Even before he came into this world, Naruto achieved something that was said to be impossible. Even when he was 14 years old in the elemental nations, he could unleash blasts of air pressure with a fist punch.

He used this ability with the boost from Tōki to unleash a strong blast of air pressure to blast the tornado away. A sonic boom was created simultaneously since the unleashed blast of air pressure was so strong.

"Can't you tell?" Naruto walked towards Takashi with menacing eyes. "I am an angered man because you threatened something he holds dear. I asked if you want to continue. You should have said you want to stop, but now there is no going back for you, Takashi Hayase."

Takashi's eyes widened when Naruto wasn't there anymore. It was like Naruto was deleted from existence. Before he could even react, an uppercut crashed into his chin before he got kicked onto his shoulder. A kick crashed into his face and sent him flying. He shot away and crashed through 4 building walls.

Naruto placed his foot on the ground again and walked towards Mio. "Everything alright, Mio?"

"Y-yes, thank you." Mio could only look at him in awe. She never thought that Naruto was so strong. It was simply amazing how strong he was. He had countered a massive tornado with a fist punch! That was really majestic in Mio's eyes. The way the white aura pulsated around him while he waited for the enormous tornado to get close enough to him to punch the tornado and negate it.

"I am glad." Naruto smiled gently at Mio. "Let's go. I think we are done here."

"Is the hero dead?"

"No. He isn't dead. A hero won't die from something like that even when he isn't that strong like Basara or Yuki. A hero still has high endurance and strength. They are humans with special abilities." Naruto looked over his shoulder when Takashi appeared with a green aura pulsating around him with an angry face.

"You are wrong. I am stronger than those two! I am the strongest hero, and I will kill the daughter of the former demon kind!" He spun his spear around before he went into a fighting pose.

"Wait a bit more; this will be over soon." Naruto smiled at Mio, and she nodded in response.

Naruto turned around and walked a bit away from Mio before he stopped. "As you wish, Takashi Hayase. I thought the little beating I gave you would be enough, but I was wrong." His gentle eyes became like a never-ending blizzard. "I hope you are ready for what is about to come."

Takashi had wide eyes when he felt that massive killing intent piercing his entire body and being. He looked at Naruto and saw his ice-cold eyes. He bit his tongue and became even angrier. "DO YOU THINK THAT WILL STOP ME?" He wanted to charge at Naruto, but someone appeared in front of Takashi.

"Here you are." Takashi's anger vanished when he saw the person before him. "I thought you were already in our current HQ, but I was wrong."

"Shiba?"

Author Note: That would be it for this chapter. I hope you all enjoyed this chapter and the short fight between Naruto and Takashi.

I wish everyone a good week/day, and I hope we will see each other again in the next chapter! I wish you all the best!