He might use his future knowledge to avoid some mistakes. For example, he could be more cautious with Orochimaru during the Chunin Exams. He might also try to train harder from the start to become even stronger faster.
One possibility is that he would try to change the relationships around him. He might reach out to Sasuke earlier and prevent him from leaving the village. Also, he could be more strategic in dealing with the Akatsuki, since he'd know their plans in advance.
Naruto's character would likely become more mature. Since he has the memories of his future self, he would understand the consequences of his actions better. He would not be as impulsive when dealing with situations like fighting with Sasuke or facing the Akatsuki. Also, he would probably be more strategic in his approach to training and battles. Instead of just jumping into things head - first, he would plan and think ahead, making him a more well - rounded and respected ninja among his peers at a much earlier stage.
He'd be more confident. In his original Genin days, he was a bit of an underdog, but with his future memories, he'd know his potential. So he'd act more boldly.
One possibility is that she would have to readjust to the basic training and teamwork. She might find it both frustrating and nostalgic. Since she has more experience now, she could use her advanced knowledge to shine in the genin tasks, like acing the survival exercises. Also, her relationships with her old teammates, like Sasuke and Sakura, would take on a new dynamic as she tries to balance her new perspective with the naivete of being a genin again.
The main characters would be Naruto for sure. He's the center of this time - travel concept. But we can't forget about the other members of Team 7. Sasuke, with his brooding and powerful nature, and Sakura, who was developing her skills. Also, characters like Iruka - sensei, who was important to Naruto's early development, might also play significant roles. And there could be appearances from other ninja like Shikamaru and Choji, who were Naruto's friends and comrades during his genin days.
In this type of fanfiction, an exciting plot could be Naruto's interaction with his parents. Since he has time - traveled, he might be able to meet his father, Minato, and mother, Kushina, in a different way. He could share his experiences with them, and they could train him in ways that were not possible in his original timeline. This would not only strengthen Naruto's abilities but also give him a chance to have a real family experience during his genin days, which was something he always longed for.
Her training would likely be different as she already has a lot of experience. She might focus more on perfecting basic techniques rather than learning them for the first time. For example, she could spend more time on improving her chakra control in basic jutsu like the Clone Jutsu.
In fanfiction, Naruto as a sensei often has a very unique dynamic with his genin team. He might teach them his own unorthodox ninja techniques, like his signature Rasengan. His experiences as a former underdog also shape how he trains his students, emphasizing perseverance and the power of friendship.
Overcoming challenges is also a typical theme. Genin face many difficulties like tough missions, rivalries with other genin teams. Fanfics explore how they deal with these challenges, like Naruto facing off against stronger opponents and finding ways to win through his determination and unique skills.