Naruto might be more confident in his relationships. Since he has received training from Itachi, he would be more self - assured. He might not be as eager to prove himself in a brash way as in the original story, which could lead to better relationships with his classmates. For example, he wouldn't constantly challenge Sasuke in a show - of - strength manner.
One possible plotline could be that Itachi sees Naruto's potential even at a young age. He might start teaching Naruto basic ninja skills like stealth. For example, Itachi could show Naruto how to move quietly in the forest without making a sound. This early training could give Naruto an edge when he later enters the academy, as he would already have a foundation in some ninja arts.
In such a fanfiction, one possible plot could be Naruto training in secret. Maybe he discovers an old, hidden training ground in the village. He starts practicing basic ninja skills like shuriken throwing and tree climbing on his own. This early training could give him an edge when he finally enters the academy, making him stand out among his peers.
It could be an old, retired ninja who lives on the outskirts of the village. This person has seen the hardships Naruto faces and decides to take him under their wing.
The plot could involve Kurama teaching Naruto how to use his own chakra more efficiently. Since Kurama is a powerful source of chakra, he can guide Naruto on how to tap into his inner strength. Maybe Naruto starts to show extraordinary abilities in front of the villagers even before the academy, which causes both fear and admiration. This early training could also lead to Naruto having a different attitude towards his studies at the academy as he already has some skills.
One possible plot could be that Itachi, seeing Naruto's potential and his importance for the future of the Hidden Leaf, decides to secretly train him. Itachi might teach Naruto advanced jutsu, especially those related to chakra control and unique Sharingan - inspired techniques. Naruto, under Itachi's tutelage, would grow not only in power but also in his understanding of the ninja world's complex politics and the Uchiha clan's history.
Naruto may become more calm and composed. Itachi's presence and training methods would likely instill a sense of discipline in Naruto. He'd probably be less impulsive in battles and think more before acting.
In this fanfiction, Naruto might gain some unique jutsu skills from Itachi. Itachi is extremely powerful, so he could teach Naruto advanced genjutsu or ways to better control his chakra. For example, Naruto might learn how to quickly break free from strong genjutsu attacks, which would be a great advantage in battles against tough opponents.
Well, in a fanfiction where Naruto is trained by Itachi in Sharingan, Naruto would first have to adapt to the new power. Itachi would probably start with the basics of how to activate and control the Sharingan. Since Naruto is used to his own physical and chakra - based training, this would be a challenge. However, with Itachi's guidance, he could master it. Once he does, he could use the Sharingan to analyze his opponents' fighting styles better. For example, he could quickly figure out the weaknesses in an enemy's jutsu and counter them effectively. He could also use the Sharingan's visual prowess to enhance his reaction time during battles.
The relationship between Naruto and Fem Itachi could be a very interesting aspect. They might form a strong bond similar to a master - apprentice relationship in traditional martial arts. Fem Itachi could share her own experiences and wisdom with Naruto, which could help Naruto better understand the world of shinobi, including the Uchiha clan and their secrets.