The plot could revolve around the Rookie 9 as adults being sent on a mission to uncover a mystery from Naruto's past. It could be something about a hidden power or a secret pact that was made long ago. As they dig deeper, they discover things about their own families and the village that they never knew. This leads to internal conflicts as well as external battles. Some might question their loyalty to the village, while others are determined to protect it at all costs, all against the backdrop of Naruto's past events.
A possible plot could be that the Rookie 9 are adults during a time when a new threat emerges that is related to an event from Naruto's past. They have to use their combined skills and knowledge from their years of growth to combat it. For example, if it's a resurgence of an old enemy from the Third Hokage's era, they need to figure out how to stop it before it destroys the village.
One plot idea is that the Rookie 9 as adults find themselves in a situation where they need to relive and correct some mistakes from Naruto's past. Maybe there was a misjudgment during a mission back then that led to some long - term consequences. Now, they are in a position to fix it. They might have to go back in time (using some fan - made time - travel jutsu) and change the course of events. This would involve a lot of character development as they face their younger selves and deal with the emotions and challenges associated with that.
Well, in a fanfiction about the Rookie 9 as adults in Naruto's past, one aspect could be their relationships. Some might have developed deeper friendships, while there could be new rivalries or romances. Their skills would also have evolved. Sakura could be a highly skilled medical ninja, and Naruto might be well - on - his - way to becoming Hokage even in the past - themed fanfic. They would all contribute to the village in different ways.
The plot might involve Naruto being influenced by some external force. For example, a new enemy could be using some kind of mind - control or illusion on him to make him ignore the Rookie 9. Another possibility is that Naruto has become so focused on his training to become stronger that he starts to neglect his relationships with the Rookie 9, thinking that his power is more important for the future of the village.
One possible plot could be Naruto facing unexpected challenges during his rookie year that the original story didn't cover. For example, he might have to deal with a new group of enemies who are specifically targeting rookies. This would test his skills and his ability to adapt quickly.
The plot could involve the team's training sessions. They might be learning new jutsus under Naruto's guidance. For example, Konohamaru could be struggling to master a particular shadow clone technique variant that Naruto is teaching them.
It could be about a rookie who discovers a time - traveling device and uses it to correct past mistakes. Maybe he wants to save someone he lost in his real time.
Maybe Naruto feels overshadowed by the Rookie 9 in the fanfiction. In the original series, Naruto has his own journey and development. If the fanfiction misrepresents his relationship with the Rookie 9 in a negative way, like making them seem better than him all the time, he could hate it.
Naruto's scars might be a sign of his loyalty and self - sacrifice. He has always been willing to put himself in harm's way for his friends and the village. The rookie 9 seeing these scars could make them realize how much Naruto has done for them. For instance, his scars from fighting Pain were to protect the village and his comrades. It's a physical manifestation of his unwavering spirit.
A plot idea could be that Naruto, being older, is assigned to lead a special mission with the Rookie 9. He has to use his experience to keep them safe and complete the mission successfully. During the mission, he could teach them how to work together more effectively.
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.