I have edited.
Hiruzen stood on the earth made poles. He held a staff in a defensive stance and awaited Naruto's attack. He looked all around him as many clones of Naruto surrounded him, staff, ready for attack. Naruto ordered the attack and struck. Hiruzen trounced the first wave, but he realized that it was only used for cover. He blocked the stab that came from within the smoke and spun around to destroy another clone.
Naruto didn't give up as he continued to use the smoke as a way to attack and lashed out at Hiruzen. The old man countered every attack with some ease, but he was almost struck from below. He grabbed the staff and pulled Naruto up. Once in his face, he kicked him into the tip of a staff which dispelled him. He sensed more attacks coming from below and jumped in the air. Waiting for him were two Naruto ready to strike.
They both brought their staff down on the old man's staff. Hiruzen winced a little but gave it little thought as two more Naruto jumped at him, intending to catch him in the gut. Hiruzen spun him to break out of the stalemate he had. He smashed his staff into one Naruto that disappeared in a puff of smoke and kicked the other Naruto that also vanished. As he came down, he raised his staff in the air. He landed and drove the butt of his staff into one of the earth poles, and several other polls shot up from the ground. Several other poles shot up from the ground and destroyed the poles and the clones.
Once the dust settled, there were no more poles other than his. Naruto was struggling to free himself as one of the poles caught his shirt. Hiruzen took some deep breaths and sat down on the pole. He looked at his student and smiled.
"He almost had you that time Sarutobi. Perhaps you are getting too old to be sparring with such a young child." I spoke to the staff.
"Perhaps you're right, my old friend, but I get some joy out of these spars. He is only six, and he has progressed so far." Hiruzen said.
"Agreed, he is as hard-working as his father." Said the staff.
An eye appeared and looked at Hiruzen. "I've been meaning to ask, are you going to have him tap into his tenant's chakra?"
"I have not found a safe way to do so. I tried meditation, and he has accessed his mental world, but it was only for a short time. He doesn't truly focus on it as he gets bored very easily."
"Do you think it's wise for him even to try?"
"Wise, no, but it is necessary. While I am glad that Jiraiya's scan of the seal is positive, he will need to learn how to use that chakra at some point. Minato was a crafty man and didn't do things for no reason."
"Quite right," Naruto was able to free himself but fell on his butt. He held it in pain, making Hiruzen and the staff chuckle. "Well, if there is nothing else, Sarutobi, I will take my leave. If you do plan on allowing him to sign the contract, please summon me so we can work out a deal."
"Of course, Enma, I shall call you," Hiruzen said and bowed. The staff suddenly turned into a man-size ape. The ape did a hand seal and disappeared. Hiruzen stood up and jumped off the pole to check on his student.
Another year had passed, making Naruto seven years of age. His skills in Taijutsu, tactics, and Ninjutsu had significantly grown. He had taught the Kawarimi no Jutsu and Henge no Jutsu. As the Jiraiya scan had reported, Naruto's coils were massive and produced more chakra than anyone in the village. Sarutobi knew that this would be used to hold the boy back, so he taught him the Kage Bunshin technique. It was the perfect technique for him as he doubted Naruto would ever get tired from using it. He felt that it was time for the boy to join the academy.
However, the council had a problem with that decision, or instead, the Uchiha clan had a problem with that decision. They had called an emergency meeting to discuss it. Hiruzen sat beside the elders and had everyone seated.
"It has come to my attention that there is a problem with Naruto Uzumaki joining the academy," Hiruzen said.
"Yes, I feel that it is unfair that he joins the academy. He has had special training and will be more advanced than the other students." Fugaku stated.
"Care to explain that, Uchiha-san?"
"I know from my sources that you have taught the boy the Kage Bunshin Jutsu," Fugaku explained. That sent warning bells in Hiruzen's head.
"Have you been spying on my family and me, Uchiha? That could be considered treason!" Hiruzen spat.
"That is not what I said. My sources have told me about what you have taught the boy. It is a B-rank Kinjutsu that should not have been taught to a six-year-old." Fugaku argued.
"Is this true, Hiruzen?" asked Homura.
"Yes, I did teach the boy the technique. However, it was a good reason that I did." Hiruzen stated.
"Sorry to say Hokage-sama, I don't see a good reason for showing a six-year-old a Kinjutsu," Shibi said.
"I agree. What reason did you have to teach Naruto such a jutsu?" Inoichi asked.
"I assume that you have all read Jiraiya's report of the seal?" He got several nods. "If you continued to read, you would have seen that Naruto's chakra coils are the largest in the village.
The reason behind it is because Minato's seal allows the Kyuubi's chakra to leak into Naruto chakra network, so his coils were adjusted to deal with the other chakra source. The regular Bunshin Jutsu was beyond him even if he learned chakra control exercises. In our training, I showed him the Ki Nobori no Shugyō, and he still couldn't control his chakra to do the Bunshin."
"Still, that is a dangerous technique for a child. It was very irresponsible of you, Hokage-sama." Hiashi stated. Hiruzen knew that he was not really siding with Fugaku but making a point. He smiled at the council, which put them on edge.
"Then would you like a demonstration to place your worries to rest?" he asked them. They mumbled and murmured before placing their attention back to Hiruzen.
"What do you mean?" asked Fugaku.
"Come by the stadium tomorrow, and all your questions and worries will be put to rest. Trust me, you will not be disappointed."
Naruto was happily on his way to Ichiraku's for a celebration. He was given a ton of money as a reward for his performance today. While he didn't know why the council was there, he figured out that it was another shaft job they were planning. The looks of the Uchiha clan leader and several other council members told him everything he needed to know. Now, he was on the way to celebrate. He turned to see smoke coming from a different direction. Curious, he made his way to the sight. When he got there, he saw a considerable house ablaze. He turned to go get help when he heard the screams of two people.
He was torn as he knew that he should go get some help, but it would be too late, and the people would be dead. Decision finalized, Naruto rushed into the burning house. He covered his mouth and kept his head low so that he wouldn't get smoke in his lungs. He moved toward the sound of screams and moved quickly. Reaching a room, he kicked the door down and saw two people hugging each other. Naruto looked at them and saw that they didn't have much time. He created several clones and pulled something from out his pocket.
Outside, several Konoha ninja attempted to get into the house. A young nine-year-old girl tried to get into the house but was held back by her uncle. Suddenly there was an explosion that blew out the front of the house. Naruto and two of his clones came running out of the house before the flames could consume the house. Naruto and his clones laid the two people on the ground. The Konoha ninja quickly went to see about the two that Naruto brought out. The clones were dispelled, and Naruto took a few more steps before he fell to the ground.
Naruto woke up to a white ceiling. He groaned and covered his eyes from the bright light that was on him.
"I got to stop ending up in here." He groaned
"I completely agree." Naruto turned to see the Hokage. There was also a man next to him.
"I remember you, you were at the house," Naruto said.
"Yes, my name is Unkai Kurama, and on behalf of the Kurama clan, I thank you for your brave efforts. You save my brother's and my sister-in-law's lives." Unkai said and bowed to Naruto. The blond grinned at the praise.
"Did you guys manage to stop that fire?" Naruto asked. Both men looked at each other with nervous glances. "What?"
"Nothing, for now, get better, and we will talk about it. I promise that I will keep you in the loop." Hiruzen said. He and Unkai left a confused Naruto to recover.
"Naruto, please come in here," Hiruzen called out. Naruto entered his private room, where Hiruzen did his calligraphy. He was wearing the training gi he used when training him. Naruto sat before him and waited for him to continue. Hiruzen sighed and faced him. "First off, I would like to say that I am very proud of you. You did act without thinking, but your actions saved the life of two people. However, there are certain things that you must know about that fire. The first thing is that it was not real; it was a Genjutsu." Naruto was shocked.
"Are you sure, sensei? Those flames felt very real. I have the burns to prove it." Naruto said.
"Do you remember that man from before?" Naruto nodded at the question. "That man is part of a small clan called the Kurama clan. They are a clan of some of the most talented Genjutsu users. They are very talented in that area. However, once in every generation, there is a Kurama with skill so great that they can cause physical damage to their opponent." Naruto looked very stunned and amazed. Hiruzen continued his speech. "At this moment, there is a Kurama with such a talent."
"What is going to happen to that, Kurama?" Naruto asked.
"At first, I had a tutor attempt to help the person control their ability, but the tutor proved to be unable to do it. I had that tutor seal her power when I thought she would be a threat, but their power broke the seal and unleashed its fury." Hiruzen explained.
"You talk as if this power has a mind of its own?"
"From what Unkai told me, the power takes the form of another persona. If the Kurama can't control this persona, then the persona will take over." Hiruzen added.
"So why tell me, sensei?"
"The girl, her name is Yakumo, has been loudly telling the clan that I was responsible for the fire. The clan knows that is not true, but she is strongly convinced that I and her tutor, Kurenai Yuhi, plotted the whole thing. She probably overheard what Kurenai and I had discussed and mistaken it. Now I am faced with a dilemma. Unkai and the clan want me to put her to death. Her parents are not willing to do so and are willing to go so far as to leave with her out of Hi no Kuni. I can't do that because of what our enemies will do. I ask you, my student because you wish to be Hokage, and a Hokage must make a choice of such difficulty. Think of it as a test." Hiruzen said. Naruto looked at him and saw that he was severe.
"Well, I won't kill her. It's not her fault that she was given such a gift, that's just an evolutionary process. I do believe that a stronger seal is needed, but this seal should only be used with her consent. I know how it feels not to know why things happen. I would sit with her and her family, explain what was misunderstood, and offer my plan to them."
"A good plan, but what is to stop her second persona from overcoming the next seal?" Hiruzen asked.
"Then, I would suggest a better seal master, one who has years of experience." Naruto countered.
"Do you truly believe that experience really matters?"
"Yes, because an experience seal master can learn the mistakes of the first seal and improve it."
"Why not just use the stronger seal and put her in confinement?"
"Her parents won't allow it. If you try to have them silenced, she would be even more resentful of you, Yuhi-san and all of Konoha."Hiruzen looked at his student carefully. Naruto did not waver under his gaze. He smiled at Naruto.
"Your answer was satisfactory, but you could have been a little more convincing." Hiruzen stood up, followed by Naruto. Hiruzen led the blond back to his room.
Two weeks later found Naruto standing in front of the academy gates. He was wearing a pair of black pants, dark orange and blue kimono top with a mesh shirt underneath, black sandals, and arm guards. He had a small ponytail in the back of his head as he allowed his hair to grow out some. He was a bit nervous about being here as he knew some of the instructors would be out for him. A hand fell on his head, and he looked up to see the Sandaime.
The wise old man gave him a smile and pushed him forward. Naruto groaned and got into line with the other. After a while, one of the instructors stood in front of the group. He wore the standard outfit of a Chuunin; his hair was tied and had a scar running across his nose.
"Greetings, my name is Iruka Umino, and I will be your teacher. I would like you to welcome to the academy." He said. Naruto wondered what the next four years were going to be like.