Maybe in the fanfic, Team 7 in ANBU is tasked with protecting a powerful and important shinobi from another village who has come to Konoha for peace negotiations. Naruto tries to befriend the visiting shinobi, Sasuke is constantly on guard against any possible threats, and Sakura is ready to heal any injuries in case of an attack. There could be internal conflicts within Team 7 as they deal with different approaches to protection.
Well, one major plot change could be in the power dynamics. Since Naruto in Anbu is likely more skilled and experienced. He might take a more dominant role in Team 7's missions. For example, he could quickly assess and handle dangerous situations that the original Team 7 might struggle with. This could also change the relationships within the team. Sasuke might be more competitive towards Naruto, seeing him as an even greater rival. And Sakura might have more admiration or fear towards Naruto because of his Anbu status.
Maybe in the fanfiction, the ANBU Team 7 is sent on a mission to infiltrate a hidden organization that is planning to attack Konoha. Naruto uses his shadow clones in creative ways to gather intelligence. Sakura disguises herself as a member of the organization and uses her knowledge of poisons to take out guards silently. Sasuke uses his Sharingan to detect hidden traps and enemies. Along the way, they discover that there is a traitor within Konoha who is feeding information to the enemy.
One possible plot twist could be that Naruto has to keep his ANBU identity a secret from his teammates, even during dangerous missions. This would add a layer of tension and internal conflict for Naruto as he struggles between following ANBU protocol and being a true teammate. Another twist could be that the Hidden ANBU has an ulterior motive for placing Naruto in Team 7, perhaps to spy on Kakashi or one of the other members. This would lead to a complex web of mistrust and mystery within the team. Also, Naruto might have special ANBU - related abilities that are awakened during crucial moments in the story, abilities that not only surprise his enemies but also his own team, changing the dynamics of how they approach battles and missions.
Perhaps a powerful and unknown shinobi from a far - off land. This shinobi has heard of Team 7's reputation and sees them as a threat to his plans of world domination. He uses his unique and mysterious jutsu to challenge Team 7 at every turn, and they have to figure out his motives and weaknesses to stop him.
Another plot could involve the Anbu team being tasked with protecting a young and powerful ninja from another village who has valuable knowledge. Along the way, they form an unexpected bond with this ninja and learn new techniques from them.
The plot could involve an Anbu member protecting the girl who is a Naruto fan. Maybe she has some special knowledge about Naruto that is important in the Naruto world they live in, and the Anbu is tasked with keeping her safe from those who might want to use her knowledge for bad purposes.
One possible interesting plot could be that Team 7 is trained by a new sensei who has a very different style from Kakashi. This new sensei focuses more on survival skills in extreme terrains. So, Naruto, Sasuke, and Sakura have to learn how to build shelters in deserts, jungles, and snowy mountains. They also learn to hunt for food and purify water in the wild. This new training makes them stronger both physically and mentally, and they develop new jutsu based on their experiences in these extreme conditions.
One possible plot could be Naruto learning new and unique jutsus from Kurenai. Since Kurenai is skilled in genjutsu, she could train Naruto in the ways of genjutsu, which he is not very good at initially. This would open up new storylines as Naruto struggles to master this different form of combat and uses his own creativity and determination to adapt genjutsu to his fighting style.
Perhaps Naruto in the Anbu has a personal mission that goes against the village's orders. For example, he might befriend someone from an enemy village who is actually innocent but is being targeted by Konoha. When the village refuses to listen to his pleas, he decides to leave. He'll use his Anbu abilities to protect his new friend and find a new place where they can both be safe, away from the political drama of the ninja villages.
One possible plot could be that Naruto is discovered to have an extraordinary natural talent that is recognized by a powerful figure, like the Third Hokage. This figure decides to fast - track Naruto's training and place him in the ANBU. In the ANBU, Naruto could face discrimination from the other members due to his age and being the Jinchuriki. But he overcomes this with his determination and starts to show his unique abilities, like his unrivaled stamina. He might be sent on missions where his innocent perspective actually helps in solving problems in unexpected ways.