Perhaps in this fanfiction, Naruto remembers a past life where he was part of a different ninja clan. This could lead to him having skills or knowledge that no one in the current Naruto universe has. For example, he might remember a unique jutsu from his past life and try to recreate it in his present life. He could also struggle with the identity crisis of feeling like he belongs to two different worlds or identities.
Perhaps a powerful figure in the Naruto world who senses Naruto's newfound memories and abilities from his past life and sees him as a threat. This could be a rogue ninja or even a hidden power within the ninja villages. They might try to stop Naruto from fully exploring and using his past - life powers.
One interesting concept could be how Naruto's past life memories change his relationships. For example, if he remembered being a great warrior in his past life, he might approach his training with Sasuke differently, seeing it as more of a friendly rivalry between two equals from different lifetimes. Another concept could be how his past life knowledge affects his view of the ninja world. Maybe he has memories of different forms of chakra usage that were lost in the current era, which could lead to him revolutionizing the way ninjas fight.
In such a fanfiction, the plot could involve Naruto finally realizing the full extent of his past experiences. He might remember details about his parents that he had forgotten or repressed. For example, he could recall specific moments with his father, Minato, like how Minato taught him a certain jutsu in a dream - like memory. This newfound knowledge could make him stronger, as he'd have a deeper understanding of his heritage and the power within him.
Naruto's character develops by becoming more self - aware. With past life memories, he understands his own strengths and weaknesses better. He might realize that some of his impulsive behavior is a carry - over from his past life's more head - strong nature. This new self - awareness helps him make better decisions in battles and in his relationships.
One interesting concept could be how Harry's past - life memories influence his relationships. For example, if he remembered a past life as a powerful wizard, he might be more confident in dealing with his friends or enemies. Another concept could be how these memories affect his understanding of magic. Maybe he discovers new spells or magical theories from his past - life knowledge. Also, it could change his view on the wizarding world's history and his place in it.
In this fanfiction, Naruto might go back to the time when he was a child. He could use his future skills and wisdom to outwit his enemies from that time, like Orochimaru. He could also help his friends, like Sasuke, in a different way. Maybe he could prevent Sasuke from leaving the village in the first place. This would lead to a completely different story arc for both of them and for the whole Konoha village.
One possible plot could be that Naruto from the past somehow gets a glimpse of the future of Konoha. He sees new threats emerging and starts training in ways that can counter those threats in the future. He might also try to influence the present actions of his friends and allies based on what he saw in the future.
Well, one possibility could be that Naruto has some sort of visionary ability where he can see snippets of the future during his past adventures. For example, he might see the final battle against Kaguya while he's still on a mission with his team as a genin. This could change his approach to training and how he interacts with his friends, as he tries to prepare them for what's to come.
Another interesting plotline could be that in his past life, Harry had a relationship with a character that is very different in his current life. This could create a lot of emotional turmoil and interesting character dynamics as he tries to reconcile his past feelings with his present situation.
It could be someone from Naruto's past that he had forgotten about. Maybe a former rival from his academy days who felt overshadowed by Naruto and now that Naruto remembers everything, including some secrets about this person, they become the antagonist. This person might try to stop Naruto from using his new - found knowledge to gain more power or influence in the village.