A new chapter yadayada this time the timeline will be sped up a bit, I can't have ten chapters on his growth. This will be done with the occasional flashback as that's way more suited for it. I really hope you like it, please give me advice on what I should change if needed. Disclaimer I don't own Naruto blabla you know the stuff
Naruto rushed into the room desperation on his face. Before him lay his Jiji breathing weakly on a hospital bed. Tears began to fill his eyes walking up to the man that cared for him all so much, seeing him on his death bed. He was the only one Naruto still cared for, the only love left in this village, he was what kept the darkness at bay. Hikage knowing this all too well didn't show any emotion yet smiled on the inside, her job of tainting the boy had worked all too well so far. She opted to stand right next to the door waiting for her precious student to have his last talk with the weakhearted so called leader
"J-Jiji!" Hiruzen slowly opened his eyes struggling to properly turn his head, yet the man managed to grow a smile on his face as he saw the boy "Naruto… It's good to see you" already after so few words did he need to catch his breath "What's wrong Jiji, come on please get up! You can't, you can't be sick! I need you!"
His hand on the railing weakly grasped by Hiruzen "Naruto, I'm old. It… it had to happen someday. I had hoped that" catching his breath yet again Naruto felt his heart ache even more "That I would see you grow up, I've always… seen you as my grandson"
Not being able to hold his tears any longer Naruto cried, begged "Please don't go…! You need to s-see my dream come true! Please!"
Hikage walked up to Naruto putting her hand on his shoulder as if compassionate for once "Brat, I know it hurts but his age finally caught up. At least give him some happy last thoughts, tell him how much you've grown, how strong you're becoming. He will be happy knowing you can look out for yourself just like your parents would have wanted"
Hiruzen's eyes widening "Y-you told him?" she nodded in return "He had to know, and he doesn't fault you brat. He's known for months and not once has he been mad at you, you're still his Jiji. You can trust me that the brat will be stronger than any could hope for, he will change the world" and how true she was, if only Hiruzen knew in what way… The hope in the man's heart burning as he thought of Naruto's father, that his son was now growing up just as strong or even stronger. He didn't think for a second that Naruto's heart had changed so much during her tutelage
He smiled looking at Naruto "I'm proud of you Naruto… Promise me one thing…"
"Anything Jiji!" sniffing he couldn't hold back any emotion, his heart nearly shattering as he understood his beloved Jiji was truly dying "Don't let the darkness consume you, stay strong… Show the people who you are, I will always watch over you"
"I will! I'll change the world, I promise…"
Hiruzen's smile grew all the wider yet his breath failed him, he closed his eyes for a few seconds as Naruto feared he was dying right before him. Hikage made her move however, walking up to the dying man and holding her hand over his heart. His pale complexion instantly lessening as colour slightly came back, his breathing getting better "This is all I can do, you will have little more time. Use it wisely"
Naruto shocked at her action realising what she had done, she'd given him precious time with his Jiji. His feelings and respect for her growing even more in an instant "What did you do?"
"I gave his heart a little boost using his remaining chakra. He will have a few more hours. He won't suffer any pain this way, one moment he will be awake and the next he will fall asleep. It's for the better"
Hiruzen now wide eyed looked at her with gratitude he couldn't believe he could give her, the demon which shook his world. He knew she didn't mean any good for this village but for the boy she apparently did, this thought gave him peace of mind "Thank you"
"No thanks needed. Talk with the brat, you two deserve it" Turning to her student "Naruto, I told you what you can and can't talk about. Remember, the shadows have ears. We don't want them to gain information they don't deserve, your Jiji knows what I'm talking about" she saw the man nod in understanding "Then I will be on my way. Have one of your loyal Anbu escort the brat home when you're done" not waiting for a response she left the room
As she got outside she closed the door behind her "Let them talk for the next two hours. I've extended his life, he will last around six to seven hours. If you dare disturb them I will have your precious village suffer, do you understand?"
The Anbu and private Hokage guards fearfully nodded but also had thankfulness in their eyes "We do. What about the elders?"
"I will inform them, they will not be a problem. Use your remaining time with him wisely. Dog" turning to the all too familiar Dog masked Anbu "You will escort the brat home when they're done, the chaos of your Hokage in the hospital might bring unwise ideas in people's minds"
"I will!"
Turning around she vanished into the few shadows present, no trace of her left. Only seconds later did Hikage appear underground before the all too familiar desk. Danzo's head shot up looking at her "It's done?" she nodded to which he grinned "Excellent, how long until his passing?"
"Six to seven hours. The first two will be spent with the brat, make sure nobody disturbs them. This will enforce his loyalty to me. Afterwards you can begin the plan"
"Oh, give him precious extra hours with his beloved Jiji. I see, an effective manner to enforce his trust, he will believe you mean the best for him and so will Hiruzen. Very well I will tell the elders. May I ask how you accomplished this without drawing suspicion?"
Hikage smiled wickedly "Of course you can" the next instant Danzo had trouble catching his breath as he grasped for his heart, he looked at her in panic "I merely placed a shadow around his heart. It will slowly stop his heart as if it's naturally failing, nobody will be able to trace it" she retracted her shadow from Danzo's heart as he took a few deep panicked breaths "I-I see" realizing she could do that at a moment's notice to anyone with no counter he could spot. He knew she held all the cards thus far but luckily for him the plans coincided with his…
"Inform Fugaku to be ready. Make sure he keeps his best appearance, we need people to think he wants the best, his arrogance could ruin everything"
Danzo nodded "I agree, he will be kept in check. He knows this is his only chance"
"Good, I will meet him one last time. Give him an extra incentive, just to be sure. Remember my words, don't disturb the brat for the next two hours" once again disappearing into the shadows as the words finished
…
Fugaku sat in his home nervous, it was finally time yet he had trouble truly enjoying the moment. He knew all too well what was to become of him, he may be arrogant but he wasn't a fool. It was just that the deal given to him was too good to pass up and more so, he didn't have a choice… The 'girl' had appeared before him explaining what was to be done. At first he laughed at her thinking she was a worthless wench, yet that changed all too quickly. Just like the others she showed him just a slither of her powers and he knew one thing for certain, he didn't want to anger her…
Her showing up before him at this moment nearly gave him a heart attack, not even daring to speak before she did "It's nearly time. Danzo will call for a meeting as planned"
"I-I know, we've discussed this" trying desperately to keep his stoic appearance as if nothing could touch him "I know we did. But I've come with a little incentive" fear once again creeping up thinking this couldn't be anything good "Don't worry brat, it's a positive one. It will benefit your clan more than you can imagine. I just want to make sure you don't do anything idiotic. For instance targeting the brat when I'm not around, not properly protecting him. You may think I won't destroy the village but that would be too late if you decided to still do so. Therefore I will make you a little deal"
"A deal?" swallowing as his throat nearly dried out
"Yes, a deal. You have two prodigies in your little clan, don't you?" he weakly nodded "They have unlocked three Tomoe, correct?" again a nod "Now I'm sure you know about the next stage of your eyes. Seeing as you have them yourself. My offer is this, I will give your two prodigies such eyes. In return you will never make any move against my brat and will aid him in any way possible, failing to do so will make me annihilate your entire clan"
The fear now turning into both confusion and anger "You plan to make them kill their closest person?! Are you insane, I will never want that! These eyes are cursed!"
Hikage briefly laughed "Don't make assumptions. Your eyes aren't obtained in that manner, you haven't killed your closest person yet you still hold those eyes. Granting those eyes is frankly quite easy for me, tell me brat, which type of chakra is mainly used for your eyes?"
"Preposterous, we've tried to do this for decennia and never has there been any success!"
"Answers my question brat, what type of chakra" her killing intent spiking making him shut up
"… Yin-chakra"
"Correct, the one thing I control more than any other! Now answer my next question, I'm sure these little details are in your clan's history. Did Madara and his brother gain their eyes by killing each other? They couldn't have, seeing as they were both alive, yet they only cared for each other. So how did they gain their eyes?"
Gears turning in his head never even having thought of this, yes the records were known to him. He knew all too well they had the Mangekyo but she spoke the truth. The records say that they were both alive during the warring stage, how did they acquire them?!
"I'll give you a little hint" the room flooding with darkness as her visage grew black, darkness radiating from her as if it was light, the room clearly visible but darker than could be described "I gave them those eyes. So, brat, do you accept my deal?"
"B-But the bli…"
"I know! Do you really think I wouldn't account for that little flaw?! Theirs will be eternal just like your ancestor, yet I give you one warning. If you ever so much as ask of me to give them to any other of your clan" her power increasing, pushing Fugaku into the ground as his bones creaked "I will end your clan, I have been gracious enough to even offer you this. They will aid my brat in his training during their free time, he needs practice against a real opponent. So this leaves my final question, do you agree?"
Struggling to even answer "I-I d-do…"
"Good, remember who gave you your new position, brat. You may become the new Hokage but never dare cross me" Her words echoing in the room as Fugaku felt the pressure lift, the darkness was gone as Hikage vanished. He could feel the cold sweat on his back and face, this may have been a beneficial deal for his clan but he didn't celebrate. Knowing who was involved he could only hope that it didn't turn out for the worst
…
Only a day later and Konoha was in total uproar, news was announced of Hiruzen's passing which caused many to become saddened. The atmosphere was sombre as many wore black in respect. The funeral would be three days later, it would be grand as everyone did their best to assist. Many disagreed with Hiruzen's judgement every so often but they respected him far more for his contributions. He was all in all a great leader according to almost all the villagers and shinobi…
The news of Fugaku becoming Hokage had been announced but the celebration would be delayed for a week. The first thing he did as the new Hokage was instate a week of sorrow for Hiruzen and his great accomplishments, taxes would be removed for the coming month in an effort to brighten up the moment. He did everything he could to seem like a compassionate Hokage right from the start, every elder in the Counsil agreed with his new position as leader which appeased the common villagers. The rumours of Uchiha which put them in a negative light were quickly being dismissed as none could believe the council representing them would install him if they were true. The shinobi population however was not as keen on his appointment yet they were assured by a new law. The Hokage would put more proposals in the Shinobi council for all to judge and truly use their judgement henceforth. His power was slightly reduced to compensate for their lack in trust
But plans were being made without many in the know. The curriculum of the academy was going to be much harsher, students would be trained in chakra usage from a much younger age. Tree climbing would be taught to save time for future sensei, the level of graduates would need to become higher. Students would do more teamwork exercises, train leadership and be trained in roles which suited them more than now. If someone showed promise in a certain field they would be judged more on those subjects and less on others they had less talent for as long as it meant they would become a proper Genin in the end. Students would be doing ten D-rank missions each before their graduation whereas Genin would only do five with their team before continuing with C-rank missions
The Shinobi council agreed that the overall level of their Genin was declining and there needed to be change. Thus far the Civilian council still had say in this but that was now removed, in return they were promised more tutoring for civilians which went to the academy in order to make sure they wouldn't be too far behind the Clan members
But there was still one problem, Naruto was not allowed to go to the funeral… The council had convinced him that he shouldn't come. They said that him coming would draw away attention and respect for Hiruzen's passing, that villagers would pay attention to him instead of the proper attention to his beloved Jiji. He reluctantly agreed with a pained heart but knew it was true, this however didn't mean that his hatred for the villagers didn't grow… they denied him his proper farewell and he would pay them back eventually he swore to that
( Years later )
Naruto now ten years old stood before his cottage home, his appearance having drastically changed over the years. He was now quite a bit taller, just above average for his age which was better than his height average before. His hair mostly having turned black with streaks of blonde instead of the other way around. His clothes having changed into black Anbu outfit, half a facemask which covered his mouth and nose, but most of all his eyes had changed. Instead of the blue eyes his had become black as night with a blue ring at the edge of the Iris which gave a beautiful yet dark contrast. Anyone looking in his eyes would feel themselves being sucked in, their emotions drained as his had absolutely none in the presence of most people. He stood like a statue, waiting for orders
"Sensei!" standing up even straighter as his master came out of the cottage not even turning his head. Hikage had not changed at all which confirmed her immortality
"Brat I would say congratulations for finally completing your Sage training but I'd rather not waste the time. Your training has progressed adequately, therefore it's finally time for you to begin doing missions" Naruto's eyes looking at her expectantly, which others wouldn't notice except for his sensei. His eyes giving away nearly no emotions but to those which knew what to look for "But don't even think I'm going to let my brat do low ranked trash missions! So it's time for a little test, pass and you will be joining the Anbu, fail and I will kill you. I don't condone failure, that would mean you've wasted my time and I do not take kindly to that"
"Yes Sensei!"
"You will fight an Anbu captain. He's of similar skill to Itachi without his fancy eyes so expect to go all out. You're allowed to show all your skills". "Am I allowed to kill him if the opportunity shows itself?". "By all means do, if he dies with your meagre skills then he's a failure of a captain, he'd be better off dead. When you pass you will be placed in Itachi's team"
"Where does the test take place?"
"Training ground 3, you are expected to appear in one hour" Naruto nodded "Permission to leave", "Granted brat, don't you dare let me down"
Walking up to the forest's darkness Naruto disappeared in a cloud of dark smoke, fused with the shadows he moved towards his location. Most of the route there were shadows present to pass through but some locations the present shadows unnaturally shifted and extended to one another. Only minutes later Naruto appeared walking out from in between the trees in training ground 3 towards the only clearing he could imagine the test would begin. There was nobody present still but that was to be expected. Deciding to scout out the grounds he noticed that it gave ample opportunity for every element to be tested. The forest for subterfuge and stealth, the clearing for an open fight. Water was present for any elemental techniques his opponent may use as well as enough areas suited for the other elements
The time chosen for his test gave him a clear handicap, he was best during early morning or evening when shadows would be clearly present. But the test was taking place mid-afternoon when the sun was right above them, they wanted to see his skills at the weakest moment. If he was still strong enough then it meant that he would always be ready for his future tasks
Only half an hour later did he notice the arrival of three people with the help of his Echo "Come on out, I know you're there Itachi, Shisui and Dog" behind him the three mentioned people jumped from the trees not even surprised they were spotted. "I recon you are my opponent? You're familiar, you were the one that brought me home after I last saw Jiji"
"I am, you've got quite the memory" the voice sounded like his opponent was in his mid-twenties "You're the only one that tried to comfort me, I appreciate that. What should I call you?"
"Codename Dog, my real name is not to be used during missions" Naruto nodded in response "Got it. What will the test entail?"
"It consists of two parts. Fighting capabilities and subterfuge, the others will be judged based on your mission performance, that is if you pass this test. We will begin with a spar" he signalled for Itachi and Shisui to give a wide birth "Come at me with the intent to kill"
Naruto stood on the other side of the clearance studying his opponent, the mask covered his entire face except for the eyes. One was normal while the other was a Sharingan, he immediately knew who he was dealing with as the excitement grew 'This is going to be a challenge, Hatake Kakashi Elite Jonin'
'Inton: Scythe of Death' no seals or words only the thoughts were enough for his techniques, his Sage mode making him have no need for the former. A dark Scythe one and a half metres long with a blade of one metre appeared in his right hand. It was ominous to say the least, pure darkness in the centre which turned solid with black smoke drifting away at the edges. There was no design present, no fancy shape, the one thing that could define it was efficient, made for killing. Kakashi looked at it and swallowed 'I shouldn't underestimate him for his age, the power excluded from just his weapon is monstrous'
The two didn't move as of yet, carefully looking at one another waiting for an opening. But Naruto knew that this was a test, if his mission was to kill a target then he wouldn't have time to wait, it had to be quick and efficient. 'Shadow Shunshin' vanishing in smoke Kakashi instantly jumped forward as the scythe sliced where his head was just moments ago. Turning Kakashi held up one hand in front of his mouth "Katon: Great Fireball" as a massive ball of flame shot towards Naruto point blank 'Inton: ShadowMerge' for just a few seconds Naruto was able to merge with his own shadow into the ground as the flame passed over him. Kakashi saw the shadow shoot towards him as the scythe appeared in a vertical slice towards his chest with Naruto coming up from the shadows. Holding up his Tanto he tried to block only to shudder as the scythe passed through as if it didn't exist, a log was sliced clean through as Kakashi switched places
'That's one hell of a scythe, you can't even block it! Which probably means he can't block with it either, it's pure offence' looking at Naruto he saw the boy surrounded in black smoke 'Inton: Shadow Portal' his left hand grasping into the shadow as Kakashi felt it grasp his leg 'He can attack me from all the way over there!' feeling the hand pull him into his own shadow he sliced it with his Tanto freeing himself. He was left with one option, attack the boy unless he wanted to come at the receiving end all the time. Making seals he slammed his hands on the ground "Doton: Earth spears!"
Naruto leaped into the air avoiding an impalement, taking his chance Kakashi leaped towards him at great speed, his Tanto going for a straight thrust at Naruto's stomach. He expected Naruto to dodge or else he wouldn't have gone for such a fatal blow. Not taking his surroundings into account properly he hadn't noticed he ran into Naruto's shadow which was enlarged due to him being in the air 'Inton: Shadow Possession' suddenly feeling himself slow down by a large margin Kakashi was surprised but didn't halt his attack. The Tanto going clean into Naruto and coming out his back 'He didn't dodge?!'
Naruto smirked as he grabbed Kakashi with his left hand and swung the Scythe for an overhead sweep not even caring about the Tanto sticking through him 'Shit! I've been caught!' knowing he had to escape he was faced with no other option Kakashi channelled Lightning chakra through his Tanto increasing the cutting power. With pure force he cleaved it upwards towards Naruto's head hoping that it forced him to dodge, and hoping that he wouldn't kill the boy in the process. But the situation left him no choice, if he didn't then the scythe would surely kill him!
Grunting in pain Naruto kicked Kakashi away from himself while making sure that his shadow stayed connected. His chest now having a massive fissure in the middle, sizzling flesh due to the lightning he looked at Kakashi "That was a bit uncalled for, wasn't it?". Kakashi grimacing as he saw black smoke coming from the obviously fatal wound which in seconds closed as if it wasn't even there to begin with 'The speed of his healing! Then why didn't he continue his attack, unless'
"Your head is still fatal, isn't it?"
"Sadly it is, the rest will just heal in seconds. Now let's continue our fun, let's see how you'll deal with reduced speed" Kakashi saw the shadow stretching in-between him and Naruto but he could still move, just at a vastly reduced speed 'Not the Nara's imitation technique, I'm not copying his movement. Reduced speed in return for still being able to move independently himself?'
'Inton: World of Darkness' Darkness spread around Naruto like a nova in a five-metre radius. The ground now pitch-black and even the air filling with black smoke, although Kakashi was still able to see through it just at reduced visibility 'Inton: Spears' All around Kakashi thick black spears shot out of the ground like his earth spears, trying to impale him. His speed now vastly reduced "Doton: Earth Dome" slamming his hands on the ground a thick wall of rock protected him as the spears failed to penetrate. Naruto made a horizontal sweeping motion with his scythe as the dark smoke filling the air suddenly turned into an extension of the scythe, cutting clean through the dome. Yet he missed, with his Echo he sensed that Kakashi had gone underground. Acting as if he didn't know where he was Naruto looked around in confusion waiting patiently for Kakashi to try and grab him. A hand shot from the ground instantly dragging him underground 'Got you' as Kakashi shot up afterwards looking down at Naruto, or at least he thought he would 'He's gone!'
His instincts telling him to dodge Kakashi leaped away as thick needles protruded from the ground, everywhere he went they would shoot up from all directions. Furiously dodging now hard with his reduced speed he didn't notice Naruto behind him holding up one hand "Genjutsu: Blackened Sight"
Kakashi's right eye instantly becoming blind panic kicked in, a narrow replacement with a log saving him from death "Suiton: Water Bullets!" Three Kakashi's leaping out from the nearby river shooting multiple bullets each at Naruto. The latter disappearing from his location in a cloud of smoke only to appear a few metres away still in his World of Darkness. A torrent of bullets aimed at his head shot at him from two clones forced him to dodge as the third and real Kakashi performed a great series of seals "Katon: Great Flame Flowers!". Six massive balls of flame shot up in the sky illuminating the entire clearing with bright light. Darkness receded as the light became too intense causing Naruto to grimace 'Damn, only one thing left I can do' before he made his escape to the thick forest as fire rained down upon him. He dodged any shot that came towards his head but neglected the others as they burned him
Deciding there was only one option left, Hide for now and strike from the shadows. His stamina was much greater than his opponent and he could clearly see the latter was getting tired, especially after his last technique. 'He even cancelled my connection with him'
Kakashi was panting at the river's edge, his two clones popping giving him back some of his chakra. But he knew he was in trouble, the regenerative abilities of his opponent were just too great, the only chance was a true fatal blow but he didn't want to do that. In skill he was greater than the boy, his strikes were deadly to any common enemy and if the boy was one then he would've died multiple times already, yet the boy's abilities were an annoyance to say the least. Everywhere with a shadow he could just evade techniques by blending with them and strike if the opponent got close enough. His regeneration stopped him from sustaining any injuries clear by the massive fissure in the chest healing in mere seconds. The only option would be to fight him in a great clearing with nothing to provide shadows, which was next to impossible in Konoha… yes he was stronger than the boy, had far more experience but the environment was a great disadvantage
Naruto was a perfect assassin especially at night, he shuddered to think what the boy could do when everything was dark. Was it even possible to catch him then?
"You can come on out, the spar is over" he sighed walking up to the middle of the clearing. Kakashi honestly expected to have a clean win, test the boy's abilities somewhat but this was not what he expected at all. He was nearly beaten by a ten-year-old boy! The boy now standing before him as the two onlookers appeared as well "Naruto-kun that was awesome! You totally beat his ass, hey how does it feel getting beaten by a ten-year-old? It must really suck!" Shisui with a massive grin on his face… "Shisui be quiet, you've been beaten by Naruto-kun more times than I can recall"
"Tss Itachi don't spoil it, it's fun seeing someone else get beaten for a change. Not my fault you never got your ass handed to you mister I'm so perfect look at me I'm stoic and unbeatable"
Kakashi sweatdropped at the exchange 'He's been sparring with these two?! No wonder his skills are off the charts!' coughing lightly "Yes, it seems Naruto is much stronger than I anticipated. Tell me, how come it seems like he has years of experience fighting Jonin?"
"Because he has Kakashi, Shisui and I have been training him since he was six under orders of the Hokage. His 'special' training has given him nearly eighteen years of experience fighting us"
"Eighteen years?! But you said you've been training him for four years!"
"We've used a special Jutsu allowed by our eyes to give him three days of experience in mere seconds. We've used this once or twice each day to simulate sparring without risk of death. You can imagine what kind of experience this will have given him"
Flashback
Itachi and Shisui stood before Hikage with their new eyes, having gained slight control over them already over the last few days. Nerves got the best of these two veterans as they were warned not to anger or even annoy her in the least. "You're on time, good. I gave the two of you those eyes for a reason and you'd better well use them for what I intended. Have you learned the Tsukuyomi yet?"
The both of them gulped and nodded, knowing what the technique did. They were told by their father how it was used for mental torture and weren't fond of the idea of using it…
"You will be using it on the brat once or twice each day depending on how his mind recovers. You may have been told that it deals with torture, but it can also be used for training. You can make anything appear in the illusion, even a battlefield, trap him in it and break him. Make him feel the fear of death as you put him in all kinds of battles, have him gain experience with his abilities in real combat even if it's an illusion. You will not be kind on him, his mind will recover due to his condition, do you understand?" again they gave a bare nod "As an added bonus this will train you in your own abilities as well, you two will form a team with him later on. A small warning, never use this method on anyone else, it will turn them braindead in a matter of days"
"Brat! Come on out!"
They watched as the boy already somewhat changed in appearance from what they were used to walked outside. His eyes having streaks of darkness in them next to the white and blue. His hair having turned slightly more dark than they were used to seeing "You've heard what I said, you will begin training immediately" with that she turned around and left, leaving the three to begin
"…His experience is indeed far too advanced for his age. It seems only his skills need to be strengthened. For instance his speed which is only low-Chuunin, which I imagine is also because of his body holding him back?"
Itachi shook his head "That's not entirely the case. Naruto you can explain"
"Okay, well I'm not allowed to do physical training… Strengthening the body generates more Yang-chakra, which I'm trying to lose. So this kind of stops me from getting faster until I convert all my chakra to Yin-chakra…"
'So he will always stay this slow until he finishes his training? That's a weakness alright. His skills with shadows and regeneration must be compensating for that', "And your other weakness must be the fire attribute? The light negates your darkness which limits your techniques"
"Yep, but only for the moment. When I get stronger my darkness will be able to stay, but that will take a while before I'm that good. Fighting in the open isn't really my style anyway"
Kakashi took on a thoughtful expression thinking on where to put Naruto in rank. His combat capabilities in the open were low Jonin if you didn't take into account the regenerative properties. His Taijutsu was non-existent from what he's seen. Kenjutsu similarly hadn't shined although he doubted if the Scythe fell under that category. Ninjutsu was definitely Mid to High Jonin… "Naruto, what as that Genjutsu you used?"
"I will answer to that Kakashi" Itachi interjected "It's a Genjutsu he developed that targets the optic nerves. He overloads them with Yin-chakra which impairs their function, making a target blind. However it works differently when dealing with a Sharingan, as you've clearly noticed. Our Sharingan thrives on Yin-chakra therefore your regular eye went blind whereas your Sharingan's vision grew sharper. Yet it only works when he has his shadow connected with the opponent's. It has a limit of five minutes before the body adjusts and it can't be broken in any normal way"
"Hmm. So that's why I could suddenly see clearly when I let out my Fire Jutsu. A dangerous Genjutsu against any regular opponent that's for certain. Itachi, where would you place him in rank?"
"I will go over the various categories then. Ninjutsu 4 because of his shadows, Taijutsu 1,5 only because his dodging is decent when he wants to, Genjutsu 4 as the few that he uses are highly effective, Intelligence 3, strength 1,5, speed 2 and lastly stamina 5. Taking his regenerative qualities into account he's mid-Jonin in an open fight and Elite Jonin when it comes to subterfuge and Assassination. He has clear strengths and weaknesses which have to be accounted for with the missions given. Naruto will do well in assassination missions but poorly with defensive ones because his techniques hinder allies if they don't have a Dojutsu to see through them. The fact that he can assault someone without risk of severe injury will give him plenty of openings to kill an enemy before they find out how to truly kill him. Therefore first encounters without knowledge of his abilities will prove to be his strength, he has to stay unknown"
"So… he's only truly fit for assassination. We mustn't let the enemy gain knowledge on him. He will fit perfectly into your team indeed because the both of you have a Sharingan. Otherwise he would have to be with one of your clan or by himself when he gains more experience. Naruto there is no need for the second test, you've passed and are welcome into the Anbu. Itachi, his mask if you'd please"
Naruto turned around to face what he somewhat considers a friend as the latter held up a black mask without any engravings to him "This will be your mask, your codename is henceforth Kuroi. Due to your unique condition you will be required to wear it at all times Naruto, is that understood?"
"Yes!"
"Then I welcome you to Squad Crow"
Yay Anbu Naruto! No Genin bullshit with such skills, no overpowered issue as of yet. It's time for murder missions and lots of death, time for fun… I hope you liked it? And No Kakashi didn't use his full skillset, he's stronger than he appeared in this chapter. And Naruto's regenerative abilities aren't unlimited, when his chakra is gone his healing will slow down so a prolonged battle is also a weakness. Have a nice day ^^