The story could be about Naruto's journey to discover more about his kind's origin. Since he is the last, he might unearth secrets that were long forgotten. He may also encounter new powers or abilities that were unique to his kind and struggle to master them all by himself, while also facing the usual threats to the ninja world.
In this fanfiction, perhaps Naruto would feel an extreme sense of loneliness. He may search far and wide for any possible remnants of his kind. He could also have to deal with others who either pity him or try to take advantage of his situation as the last of his kind.
Well, in such a fanfiction, Naruto might have to carry the entire legacy of his clan alone. He could face unique challenges like finding a way to preserve his clan's techniques and culture without any elders or peers from his kind to guide him.
Naruto would likely become more self - reliant. Without his kind around, he can't rely on the traditional support system of his clan. So he has to figure things out on his own, which would make him grow up faster in some ways.
The 'Last of His Kind' in Harry Potter fanfiction could be a situation where a magical creature is the only one left. Maybe it's a unique magical beast that was hunted nearly to extinction. The fanfiction might explore how this creature, being the last, has to deal with a world that no longer has others of its kind. It could befriend the main characters, like Harry and his friends, who then try to protect it from those who would do it harm.
His grandfather could be a very strict and traditional ninja. He might have high standards for Naruto in terms of ninja skills and discipline.
It could be a romantic story where the couple's final moment together is described as 'last'. Maybe they face an insurmountable obstacle and this is the end of their relationship.
In fanfiction, Naruto and Kaguya could embark on a journey to rewrite the history of the ninja world. Since Kaguya was at the origin of many of the world's problems, they could try to fix things at the root. This would involve traveling through time, perhaps, and facing many challenges along the way. They might have to battle against ancient enemies that Kaguya herself once created or deal with the consequences of her actions in the past in a more hands - on way.
Perhaps it's a dojutsu that can manipulate the elements in a new way. For instance, it could turn his wind - style jutsu into something more powerful and less predictable. It might also have the ability to absorb the chakra of his opponents when he makes eye contact with them, which would give him an edge in battle. The appearance of the dojutsu could be something like a swirling pattern in his eye.
One possible plot could be that Naruto and Temari team up for a crucial mission to save the ninja world from a new, powerful threat. They start off as reluctant partners but gradually learn to trust and rely on each other, leading to a deep friendship or even a romantic relationship by the end.
Well, it could be about Naruto having to face the loneliness of being the last. Maybe he has to carry on the traditions and values of his village all by himself. He might struggle with the weight of everyone's expectations and also deal with the memories of those he's lost.
Well, it might be about Naruto somehow ending up in the Star Wars universe and being the last Jedi. Maybe he uses his ninja skills combined with Jedi powers to fight against the Sith or some new dark force.
Some fanfictions might have Naruto's last words as 'Believe in yourself, as I believed in you all.' Naruto has always been an inspiration to those around him. These words would be a final piece of motivation and encouragement to the people of Konoha and his friends. He has spent his life trying to make others believe in themselves, and this would be a fitting end to his story in a fan - made scenario.