In fanfiction, the reanimation jutsu might have extended or modified limitations. For instance, in the original, there were clear rules about the caster's control over the reanimated. But in fanfiction, a writer could create a scenario where the reanimated can break free of that control more easily. Also, the source of the sacrifice for the jutsu could be different. In the series, it was usually human sacrifices, but fanfiction might explore using other forms of energy or substances.
I'm not sure specifically as there could be many interpretations. It might be a story where the character Harry from the Harry Potter universe is somehow related to being the first Hokage from Naruto. Maybe it's a crossover fic that combines the magic of Harry Potter with the ninja world of Naruto in a really unique way.
Obviously, Harry would be one of the main characters as the title implies he is the first Hokage. There might also be characters from the Naruto world like some of the original ninja clans' leaders who would interact with Harry. Maybe Naruto's ancestors could be in the story as well.
In this fanfiction, Naruto might learn a lot from the First Hokage. Maybe the First Hokage would teach Naruto some long - lost jutsu. For example, he could show Naruto how to use some ancient earth - style techniques that were powerful but forgotten over time. And Naruto could also ask the First Hokage about the origin of the village, getting a first - hand account of how Konoha was founded.
The First Hokage is obviously the main character. But we may also see other important figures like his contemporaries, who were also involved in the establishment of the Hidden Leaf Village.
Well, in a fanfic where Naruto gets the reanimation jutsu, it would change a lot of things. Naruto is a character who values life highly. He might struggle with the moral implications of using such a jutsu. On one hand, it could be a great strategic advantage, but on the other, it goes against his principles. He might use it in a very different way than others, like only bringing back those who died unjustly to give them a chance to right the wrongs.
One interesting idea could be the reanimation of minor characters from the Naruto series and exploring their backstories that were not fully told in the original. For example, reanimating a random shinobi from a minor clan and showing how their clan's unique abilities could have been used more effectively in the war. Another idea might be the reanimation of characters from different time periods in the Naruto universe's history, like shinobi from the era before the Hidden Villages were established.
Sasuke could also be a possibility for the 6th Hokage in the fanfic. He has grown stronger over the years and his unique perspective on the ninja world could bring new ideas to the leadership of the Hidden Leaf. He might start off as a controversial choice but prove himself through his actions in protecting the village and making tough decisions.
Sasuke could be an alternative. He has strong ninja skills and a deep understanding of the ninja world. His experiences have made him grow into a very capable person, and his Sharingan gives him an edge in combat and strategic planning.
There might be a storyline where the First Hokage appears in Naruto's dreams. In these dreams, they communicate and the First Hokage gives Naruto clues on how to solve some of the current problems in Konoha, such as political unrest or a new threat emerging from the shadows. Naruto then has to figure out how to use these clues in the real world.