Expect something riddled with spelling errors or some grammar confusion. If you don't respect that, then why bother? Besides I read for the story not the mechanics, are we really that different that only a few miss spelled words will tear you away?
Naruto quivered in his hiding place as he heard the earth shake. Naruto swiftly ran across the street and dove into a trash can. The mob had their backs to him and so they couldn't see him. Naruto shuffled due to a pain in his back. He found a small toy that was called a yo-yo. He pushed is finger through the slipknot and toyed with the string. After a few minutes Naruto jumped out of his trash can and began to play with the yo-yo. He was fascinated by the spinning. A slower member of the mob stopped in front of Naruto to take a breath. The man realized Naruto was hiding where he stood and tried to call out to the mob but on some instinct Naruto tossed his yo-yo at the man's throat with sufficient force to crush the man's throat.
In a far away place the Hokage watched as Naruto took is first life. The old man stood shocked for a moment before taking action. Anbu followed their Hokage whilst Naruto was cowering in fear and crying. His current thought was how everyone was right and the he was a demon. The Sandaime shook his head and pulled Naruto close to him. "Listen to me child you are not to blame, do not make yourself to be a demon, if killing makes you a demon then I and my ninja are demons" Jinchi Sarutobi said. The Anbu nodded in agreement.
That night did not sleep soundly as he fingered the toy that saved his life. Naruto unscrewed it and thought that he broke it only to understand that it was two separate parts. Naruto marveled at all the small details like the bearings and the light but strong material it was made off. The string though dirty was as durable as ninja wire.
The next day Naruto asked the old Hokage to teach him how to read, Naruto wanted to read books about his toy and other things like being a ninja. The Hokage agreed happily due to the toxic happy aura the boy carried. It saved many Anbu from suicide as Naruto was a beam of light in their dark headquarters. The child asked many questions and treated them with respect and considered them family. The Anbu stationed in the Hokage's room to guard him smiled inwardly as the boy called Jinchi "ojii-san!"
Naruto grasped reading very quickly as he found it interesting. In a few months Naruto was done with his first math text book. By naruto's fourth birthday Naruto was at the education level of a 5th grade. The blonde Jinchuuriki loved to learn and was always trying to understand things he didn't comprehend by the time he was nine he was expanded into mechanics, smithing, sealing arts, and minor physics.
Naruto became a perfectionist, he jumped at any topic and did whatever it took to fully understand it. Naruto was possibly one of the smartest minds in the world. Although he did lack medical training as the only one possible of teaching him would be Tsunade. Naruto sarted to forge weapons and many other things. Naruto never really changed much except for becoming more tame and inquisitive.
There the Sandaime created the Konoha Tekunoroji Risa-chi Department, or in Shinobi lingo, Techi's, the Anbu of konoha's weapon, seal, technique research. At age nine the sandaime sent Naruto to Ninja academy where he excelled but at a snails pace compared to the rest of his life.
Naruto retired from the department leaving a legacy of new technology such as the weaved ninja wire with chakra storage abilities, the advanced soldier pill, the substitution seal which held logs of wood that is standard issue to all ninja graduates, multi-grade explosive notes, genjutsu and ninjutsu seal traps, chakra patches which were seals that filled up a ninja's chakra reserves, and lastly his new ninja attire. The weave and mixture of light metal created a strong but flexible body armor that was put on like normal clothing unlike old school ninja armor.
While in academy Naruto developed his combat skills. He began to start on a project that took two years. Naruto marveled at his yo-yo which saved his life. Naruto using his old Techi resources started to reconstruct his yo-yos. He combined combat with yo-yos. Soon Naruto's yo-yos were able to detach from its string and saw through the air, release and explode, shoot out blades, or even are used to attack.
Naruto tried multiple styles of bearings, weights, materials. Naruto was quite obsessive about his yo-yos. By the time he was 11 he made ten yo-yos he considered 'Good enough'. The first yo-yo Naruto used and modeled after was the one he wanted to perfect which still wasn't done.
Thousands of yo-yos that were one time uses or seemed adequate for combat use were sealed into the seals on his knuckles. The main ten had huge stores of extra blades that could be immediately summoned on them by special dimensional seals, while ones that could detach would come back like a boomerang or a yo-yo coming back up. It took two years for Naruto master using all his yo-yos. After extensive research on puppetry and yo-yo usage he forged a weapon style for his yo-yos.
Naruto mastered all his finger coordination's, he could use yo-yos on his pinky to his thumb. Naruto was moved up to the graduating class due to his age. Thus he met the rookie nine, yet only three of the nine did Naruto respect.
Iruka was confused at the list of to be graduates: Naruto was to be given a special jacket from the Hokage, while Sai got a special headband from Danzo. So the tests went on normally until Iruka hit Naruto's name. The class didn't know who he was until Naruto walked forward. They didn't recognize the blonde. "Sensei! Who is he? He isn't in this class" Sakura stated. "Naruto, is a special graduate, he comes from a class that graduates next year but Hokage-sama put Naruto forth. It also seems Naruto is also a Techi" Iruka said. The class laughed thinking "So he is a dead last nerd!" Naruto frowned and walked up to the Uchiha and took Sasuke's ninja wire. "Tell me Sasuke where do you buy this wire?" Naruto asked. "Hn, the jounin ninja store" Sasuke said. "Did you use something before this?" Naruto questioned. Sasuke was confused but kept answer the awkward questions like it was nothing. "Yeah, a new type of wire came out and was open to chunins also" Sasuke said. "Good, now who do you think made this wire" Naruto asked. Sasuke's eyes widened as he saw the engraved name on the wire, "Uzumaki Naruto" Sasuke said.
The class was in a state of shock. A kid their age was making items that supplied jounins. "Now who here has the 'seal' applied on them?" Naruto asked. The seals that contained logs was essential to the genin. They learned to fill the seal with logs and use substitution with them. One of the tests on it was to switch with a log or get hit with a sharp kunai. The seal saved a few genin's lives as they had the seal applied early while those who didn't have the seals had to find something else to switch with. A few students were injured because they didn't have anything to switch with.
"Sasuke, come by later if you want some better wire, that set looks wore down" Naruto said nonchalantly. Sasuke hn'ed and nodded as Naruto gave him his address. Sasuke came by in hopes of find some sort of weapon that could help him with his quest. When Sasuke knocked on the door it found it opened automatically. Sasuke was shocked at the difference between his apartment and Naruto's. Naruto's home was messy and full of gadgets and smelled like a furnace.
Naruto come out of a room covered in soot. "Oh good, you came at the right time. You see I am making a special type of weapon that I would like you to try for me" Naruto explained. Naruto pulled out a cart that had a tub of black water on it. Naruto put on a heavy rubber glove and pulled out sword that seemed to be connected to some sort of wire. Naruto cleaned the weapon and handed it to Sasuke. Sasuke expected it to be warm still from coming out of the furnace just minutes ago but it was only slightly warm like it responded to his body. "It is a new alloy I made coming from chakra metal, dark iron, and some tungsten. It is capable of holding enough chakra to do an A-rank jutsu, you just focus your chakra like you would for a jutsu but into the weapon. Now I have to explain something about the wire" Naruto said throwing Sasuke a pair of gloves. Sasuke snorted and touched the wire only to find it cleanly sliced his finger. "You see, that is a new weave that forms a blade that will never dull…I hope. Those gloves are the only thing I have seen that isn't cut by that wire" Naruto said.
Sasuke nearly dropped his jaw, but he quickly recovered himself and adorned his new gloves. "Now follow me, my special training grounds is in the basement" Naruto said. Sasuke was confused as Naruto lived in a three story complex and he was on the top floor, but regardless he followed. The pair stepped into what seemed like a elevator. Naruto pulled a lever and Sasuke found himself in a split second freefall. Naruto opened the door and into a large stadium like room that was full of cuts and scratches.
"Train here as you would like, you take the elevator up by pulling the lever of you can take the emergency exit" Naruto said turning on the lights and punching a rock wall that opened up to reveal a stairwell. "Also if you feel tired take a five minute break. This room is full of seals that increase your chakra reserves and regenerate them quicker" Naruto explained further.
Sasuke was dumbstruck, as the training ground he stood on was a heavenly place to train. It was secluded, you could train forever without feeling too tired, and it was free, unlike the advanced training grounds that cost something called Ninja credit.
Sasuke found himself enjoying his new weapon. It was perfectly balanced and felt light. When he charged the sword with a jutsu he found it could also be sent to the wire. There were so many unique features to the sword. Naruto came back down with a tray of food. "Now tell me, are there any problems with my weapon?" Naruto asked. Sasuke smiled and asked "Does it come in black?" For the next week Sasuke came to Naruto's home to train and happily help Naruto design weapons.
"While I do enjoy wires for combat, I have been working on shuriken" Naruto said. "I have problems with the basic Fuuma Shuriken, if it was smaller, lighter, and easier to carry then I would use it" Sasuke commented. "Aha! That is it, I was working on spring loaded shurikens but they are already small so if I implemented it on a fuuma shuriken and maybe change the blade design it would be a worthy weapon" Naruto said. Sasuke grinned with the blonde. Before the week was over another person joined the team. Shino Aburame the quiet and calculative genin became interesting with Naruto's works. In a month, 50 weapon designs were created. Ten of which Naruto sent to R&D to mass produce.
"You know what I have a problem with?" Sasuke asked. Shino and Naruto listened closely. "When you are using rope escape jutsus it raises you chakra levels alerting the enemy, there has to be a good way to get out of it without chakra" Sasuke said. "That is a problem, we could use some sort of arm blade that shoots out to cut the rope" Shino said. "No the sound would alert a trained guard" Sasuke said. "How about a concealed band that allows you to slip out of the rope? It is rather simple. We need to devise a material that is durable, skin toned, and is slippery." Naruto said. "Bah, we will think later. Tomorrow we have team placements" Sasuke said
Sasuke and Shino went home to think of an idea. Naruto spent the night on his roof, crying. Even in company he felt so lonely. The only love he ever felt was from the Sandaime. It was a mental genocide for his childhood. The only way for him to release was to cry. It was a terrible sight to see such a young boy crying alone with no one to comfort him.
Miles away in the rebuilt ruins of the land of the Whirlpool his mother trained to kill him.