Can't believe I'm saying this but forgot an authors note when I posted so I just updated it right after posting to add this. Anyways so I using a new system of words and stuff for this.

normal speech: "hi"

beast speech: "hi"

normal thoughts: 'hi'

beast thoughts: 'hi'

when being spoken through the brain: "hi"

when being spoken through the brain with a beast: "hi"

By the way, this is most likely not going to be updated with a schedule. Only started writing this to write it.

I don't own Naruto

Naruto woke up in a sewer. He had just been beaten again; but he had never woken up in a sewer before. This sewer didn't even look like Konoha's sewers. Naruto got up as he walked around, he could feel something pulling him off in a direction. He didn't know what it was, but he felt it.

He turned a corner and saw a large cage. Naruto peered into the cage and saw nothing until he saw something swaying. He got closer and squinted and that's when he saw a massive red eye open. He slowly backed up in fear as the figure rose and moved closer to the bars. The creature soon revealed itself to be a large fox, a large nine tailed fox.

The fox roared as one of its hands shot out trying to crush Naruto. Naruto, seeing this fell backwards and closed his eyes, preparing to die. And that's when he felt it. Something that felt like cloth touching him as he soon opened his eyes. He found himself to be in the arms of a big person. He looked up to see the person more clearly. That's when he screamed out in fear; the person's head was a strange large yellow blob. The person who was floating soon went back down and put Naruto down.

"My my," the creature started to giggle. "Don't get so scared, little man. I assure you; I won't try to kill you unlike foxy over here," the yellow man said while looking at the cage.

Naruto took a closer look at the thing, as he noted several things. Its whole body seemed to be made of a strange yellow substance and he had several tentacles; it was about 3 meters tall and wore an oversized uniform with a crescent moon tie.

"Wh-who are you?" asked the frightened Naruto.

"Me? My students named me Korosensei." said the now revealed Korosensei. "Maybe my song will help you," said Korosensei as he cleared his throat: "First you take the planet earth, round and blue and green, and floating over Tokyo you drop a giant bean. put another one in Sichuan China what a shine. Taking off from Dubai to Hawaii at mach 20 leave contrails as you fly. Double back across the southern hemisphere over the Philippines once again to well Dubai. AND THEN: back to Hawaii drawing lines of latitude every 25 degrees along the way. And there you have it: Koro Sensei!

"Um... ok... uh where are we and what the hell is Tokyo, Sichuan China, Dubai, Hawaii, and flipinins?" asked Naruto with a sweat drop.

"As far as I can tell, we are in your mind. You are probably going to ask why I am in your mind; I have no idea as to why I am here. As far as I am concerned, I got sent here after I died." responded Korosensei. "Also, since I know you will ask about the fox; I have no idea about that either. Since there is a large slip of paper that says seal, it probably means that someone sealed it into you or something. I'm not from here so I don't know. The answer to your other questions is places from where I was from."

Naruto's eyes widened as this creature supposedly named Korosensei had been able to guess all of his questions; Naruto's eyes widened even larger when he realized that the 9-tailed fox was inside of him.

"Wait if the 9-tailed fox is sealed inside of me… does that make me the 9-tailed fox? Asked a scared Naruto.

"No no!" yelled Korosensei. "A cup isn't the water in it is it?" Naruto shook his head in response. "Good, now I have searched through your memories, and I have to say, your childhood was worse than mine," said Korosensei with a sad tone in his voice. "So, I would like to make an offer, would you like to be my student? I happen to be an educator at heart."

Naruto looked up at the Korosensei with wide eyes. He never thought that the first person to offer to help and possibly be a friend of his to be a weird octopus thing. "You'd really be a friend of mine?"

Korosensei looked down at Naruto. "Of course, everyone deserves a friend," replied Korosensei with a calming tone in his voice.

Naruto's eyes started to tear up as he ran at Korosensei before jumping on him in a hug, "Thank you, thank you, thank you," said Naruto as he started to cry on him. Korosensei simply rubbed him softly with his tentacles and gave him a smile; on the inside however, he was frowning. For someone to react so heavily at just getting a friend was heartbreaking to him. 'Yes, I will turn you into my greatest student.'

"It's no problem, really Naruto, so now why don't you sleep," said Korosensei as Naruto slowly started to nod off.

"Now you and I are going to have to talk," said Korosensei as he turned to face the fox.

The fox snorted, "what is there to talk about creature?" asked the fox.

"Why are you so mean to the boy? I mean you tried to kill him when you first met," questioned Korosensei.

"Ha, I've been alive for over a thousand years. All humans deserve to die, this world would be better off without them," the fox said with a snarl on his face.

"Are you sure? I have met some pretty interesting people; besides I feel like you and the kid would make pretty good friends.

The fox snorted once again, "We'll see, we'll see," responded the fox to what he believed to be a ridiculous and stupid statement.

"We truly will," said Korosensei as he looked up at the large fox.

Naruto woke up in the familiar walls of the hospital. He looked around as he heard a voice in his head.

"It seems you woke up."

'Who was that?'

"Remember me? Korosensei?"

'Wait, that wasn't a dream?'

"No, our interaction was quite real although in your head."

'Then that means I actually have friend... I have a friend! What will you be teaching me?'

"I will be teaching you, to be an assassin. And since I'm in you, you should be able to learn my abilities like creating explosions."

'But wait, I wanna be a ninja not an assassin!'

"don't worry, from what I am able to tell, being a ninja and assassin are very similar in some respects."

'Really? Also did you say creating explosions?'

"Yes, one of my abilities is to cause explosions by compacting my tentacles."

'Wow, when do we start?'

"We can start when you get out of here. You can start with stealth and agility training. After we get you to a good enough level in both of those, physical strength and self-defense training will come after. At the same time, I will be training you in my abilities in helping you with academic studies. Man am I excited; this is like having my teaching job again!" Naruto's eyes had stars in them as he was excited for this all to start, this training regime sounded exciting.

Naruto's head jerked up as he saw the door swing open. Soon a smile was plastered over his face, "Hey old man! Can I leave the hospital yet? This place is boring!"

The Hokage chuckled in response, "Now now Naruto, you should be able to leave since you are in good condition; we'll just do one final checkup first."

"Alright!" yelled Naruto as he pumped his hands into the air. The Hokage yet again, chuckled in response to the young boy's antics. Soon, after one final checkup, Naruto was sprinting out of the hospital. 'So, Korosensei what should I do first?'

"Do a 20-mile sprint."

'...I'M 8! I CAN'T DO A 20-MILE SPRINT!'

"What do you mean? I can do one in less than 2 seconds."

'WHAT! Well sorry but I'm not you.'

"Don't worry, I want to teach you to use my abilities. So, I will just enhance your speed. This way you can train speed, agility, stamina, and reaction time. Before I have you crossing 20 miles in 2 seconds, you have to be able to react and see at high speeds."

'Well ok; how fast will I be running then?'

"I don't know, I'll just keep increasing your speed until you can't react anymore."

'Ah ok,' Naruto started sprinting and Korosensei started to put some of his power into Naruto as he started to speed up. Korosensei was impressed as Naruto managed to be able to react at 15-miles an hour. before he was starting to have some difficulty in stopping, turning, and weaving. 'Very impressive Naruto, for someone of your age to succeed in sprinting 15-miles an hour without many difficulties in reacting with no training at all?' Naruto soon turned a corner; when he did, he tripped on a rock and was sent flying. Naruto's eyes closed as he waited for impact but before he did land tentacles came out of his head and stopped his fall.

'Woah what are those?'

"My tentacles, I sent them to stop you from hitting the ground."

'Thanks, Korosensei.'

"No problem, now you should probably take a short break; you did just run at an average rate of 12.5-miles per hour for 20 minutes."

'Wow, I ran that much! that means I already made it through about 4 miles! Just 16 more! I'll take a quick breather before continuing the sprint.' The tentacles slowly retracted back into Naruto's head as he sat down.

"Your top speed currently is 15-miles an hour so if you run continuously, you will only need to run for an hour and 4 minutes."

'Ok, well Ima continue the sprint.' Naruto jumped back up as he continued running. What Naruto didn't know was that Korosensei was slowly increasing his speed. 'Wow, his body adapts really quickly. I am able to steadily increase his speed without him even noticing.' Naruto continued on running and running as he was slowly becoming faster; most people stopped what they were doing to see an 8-year-old kid running at speeds that shouldn't even be possible for someone who just enrolled in the academy.

Naruto continued to weave through crowds of people even at some points jumping on a wall and running on it for a few seconds. Inside, Korosensei was shocked; 'he is running at 30-miles an hour already? His body seems to be adapting at an unparalleled rate. His muscles are constantly tearing themselves apart before healing stronger than before. He won't even need my power to run fast. He will just need it to give him the initial speed boost before his body adapts to the speed and makes it his own. Then he can add my power onto his own? I wonder how fast his max speed will be?' Korosensei stopped increasing his speed when he could naturally run at 35 miles an hour. By that time, he had already finished the sprint.

'How did I do Korosensei,' asked Naruto.

"You did splendidly, your body when mixed with my power rapidly adapts to speeds. Your body adapts quicker than your eyes. Your muscles literally tear themselves apart and heal again to adapt to the speed. You ran for over an hour and peaked at the speed of 35-miles an hour."

Naruto's eyes widened at this. 'So does that mean I can rapidly increase in strength and speed?'

"Yup, although you will have a limit and your growth will slow down drastically in the future. Anyways, we are going to continue your training with parkour."

'Ooh, Parkour is really cool.'

"Yes, it is and will be useful for you for a while. Now I need you to jump between buildings and climb them, I will give aid with my tentacles as I see fit." Naruto gave a nod before starting to run. He went and climbed up a building by jumping between two buildings before making it up. He continued running and jumping between buildings and every once in a while, a tentacle would come out and help swing him farther.

Most civilians didn't notice him but the Anbu who were meant to be his guard saw him doing this. They all wondered one thing: what are those tentacles and where did he get the skill to do this.

Naruto continued his parkour for an hour until he finally stopped. "Well done, Naruto, your training will be done in a year before we move onto my powers." Naruto ran back to his house to get food and prepare for sleep.

The Anbu reported back to the Hokage to tell him what they saw, "Lord Hokage, we have observed something strange from Naruto."

"Oh, and what could that be?" asked the Hokage.

"He ran at 35-miles an hour, he was jumping from roof-top to roof-top, and he had tentacles that would come from his head," replied the Anbu.

"What?" said the Hokage is disbelief.

"Should we take action and see what is behind this?" asked the Anbu.

"Hmmm, don't take action but watch him and report back to me now go Dog." responded Hiruzen.

"Yes sir," yelled the Anbu before disappearing.

"Hmm, what are you up to Naruto, what are you up to."

Can't believe the support I'm getting on Weaver, also sorry for forgetting any author notes when I posted this. That is really embarrassing.