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.
Perhaps the girl, being a Naruto fan, dreams of becoming a great ninja herself. The Anbu could be initially dismissive but then gradually see her potential. He might start to train her secretly, and together they get involved in various adventures within the Naruto universe, facing off against enemies and also dealing with the politics of the ninja villages.
Well, it could be a story of the Anbu falling in love with the girl. Since she is a Naruto fan, she might have a very positive and passionate view of the ninja world, which is different from the Anbu's often dark and secretive experiences. This contrast could lead to an interesting relationship as they get to know each other.
In a 'Naruto trained by ANBU' fanfic, the plot could involve Naruto being secretly taken under the wing of ANBU members. They might train him in stealth and more lethal forms of combat. This could lead to Naruto having a different fighting style compared to canon, and he might face different challenges as he grows stronger. For example, he could be involved in more covert missions early on and develop a reputation among the ANBU ranks.
The Anbu would probably be very guarded in his interactions at first. He is used to secrecy and stealth. But the girl, with her Naruto - inspired enthusiasm, might break through his cold exterior. For example, she could start talking about her favorite Naruto characters and their values, which might make the Anbu reflect on his own actions.
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.
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, the plot could involve Naruto having extraordinary powers that set him apart as a God - like figure. As an ANBU captain, he might lead his team on super - dangerous and top - secret missions. Maybe he uses his new - found God - like abilities to outwit and defeat powerful enemies that the normal shinobi can't handle. For example, he could have the power to instantly teleport to any location during a mission, which would give his team a huge advantage.
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 idea could be that Naruto joins the ANBU under Kakashi's strict training. He struggles to adapt to the ANBU's stealthy and often morally gray missions at first. For example, he might be conflicted when ordered to spy on a former ally. But with Kakashi's guidance, he learns to balance his ninja ideals with the demands of the ANBU.
In this fanfic, Naruto's relationship with the other villagers might be quite different. Since he is raised by the ANBU Commander, he may be more isolated from the general populace at first. However, as he grows, his skills and the influence of the ANBU could lead to him being respected in a different way. Maybe he would form a special team within the ANBU itself rather than the normal genin teams.
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.
One possible plot could be that Kurenai has some sort of influence on Naruto's decision. Maybe she sees his potential in a different way than others. She could encourage him to join ANBU to better protect the village and its people. Naruto, being influenced by her words and perhaps having a sense of admiration for her, decides to take on the challenge of joining ANBU.