Menma Uzumaki"
"You history is simple, you are the heir to the Uzumaki clan, and you were hidden in kirigakure with you cousin Karin but you were discovered alongs side with your friend Haku Yuki, and were chased out and almost killed because of your bloodlines
But luckily i (A Konoha Shinobi) came along
and was able to save you… and as allies of Ushiogakure i gave you the opportunity to move your clan to Konoha"
"Ok, but why do i have to pretend not being Me?"
"Because is better for you to be treated as a clan heir, during the academy than as Naruto Uzumaki, the orphan troublemaker prankster, Menma will be getting help from teachers in things he doesn't understand while Naruto wouldn't"
"Now your personality… because this is my little test inside the mission, your personality traits is one that changes a little every 4 months, the first 4 months, you have to choose something to be the opposite of "Naruto", a trait that you will have that is opposite of him, for example he's loud, then you will be quiet, he likes Skipping class then you will never miss classes, after 4 months you can then choose to copy a trait of someone else, normal or opposite doesnt matter anymore, you will be adding personality traits till the end of the academy, meaning that on graduation day, you have a personality with 15 personality traits"
"Now, everything else you can do whatever you want, how do you act to the other Naruto?,you can be his friend, or ignore him, or do whatever you want"
Then a couple of days passed and Konoha opened it gates to the Uzumaki clan, i made a Uzumaki compound (near the underground secret base
Obviously it was extremely protected both by Seals and wards then finally i put the library (which i also filled with seals a d wards, it literally impossible to enter if your not an Uzumaki (unless you're a guest), have bad intentions to towards the Uzumaki and plan to learn to kill innocents
The library has been modified with a combination of both magic, chakra, and even a little of divinity(what did you think i never got to analyze divinities from DxD?)
Basically the library self updates to your knowledge and also bans books you're not ready for, so for example you start reading biology, you're not even remotely ready to read about biological weapons, we wouldn't want a t-virus appearing in Naruto
Then I finally let Naruto enter to his legacy…
And for two years i trained "Menma", Karin and Haku in the basics of everything, from Taijutsu (Naruto's style is one of keep attacking till your opponent is tired, Karin, is a Defensive till we can put a distance between each other then i attack with chains, and Haku unsurprising choose one to attack fast and flee) Shurikenjutsu (both Shuriken, Kunai? And Senbon throwing) and finally Clan techniques,
I've been teaching Naruto A lot about Sealing, (even if he does have a Massive talent for sealing, he's been stuck for 3 months on the first seal of the novice pack) and curiously Kenjutsu with a side of hidden weapons throwing (for silent killing, although he appears to not be ruthless enough to kill unless necessary), then his Sensing abilities, which together with his empathy make him the best hunter/tracker while at the same time a great commander because he basically developed his own Kings Eye (from kuroko no basket) so been teaching him tactics and everything need for a commander ,also been training him as a future Clan Head (and Hokage) , so Politics, Manners, Negotiations (which also improved his talk no jutsu a lot), Leadership, Planning etc…
Karin is a full blown Support (for now) because she's a bit between the healer and a misdirection specialist, with both Iryojutsu (which thanks for her special healing chakra, is always boosted for at least 3x effect) and Genjutsu as priority (to confuse and then go to knock out or kill as fast as possible)
Haku was hard to train because i don't know shit because the library hasn't analyzed Naruto till another 3 years later so i teached him a more tactical ways, things like planing, hunting, poisons, interrogation, torture (by Genjutsu because he's not ruthless enough to torture physically) and also teached him about the human body and how is affected by the cold, (so basically he's kinda like more of a poison black ops specialist, with a bit of more research/scientists background but could also doble as a medic in emergencies)
Obviously i trained the three of them in the basics to survive, like first aids, hunting, tracking… basically all the training the Assassin's Creed teaches the Assasin's like how to hide in plain sight, parkour etc…
Anyway, today starts the Academy and they are ready (then i secretly put Seals on their back that will put pressure on theirs bodies so that they are not to Op compared to their peers, like Lee with Gates or Goku with Gravity Training)
I asked Naruto to not be the first place, because of his job as the "Spy" of the class, he should constantly try to be in the middle of the classes while he learns everything he can, if he can do that i will give him a jutsu to become powerful as a promise
Now just five years let's see how do interact with his peers