One possible scenario in this fanfiction could be Naruto having his unique ninja skills in the Highschool DxD world. His godlike abilities might make him stand out among the devils and other supernatural beings. He could use his shadow clone jutsu for various strategic purposes, like infiltrating devil strongholds or getting out of tricky situations during the school's chaotic events.
There could well be. Fanfiction writers often like to explore crossovers and unique concepts. However, not all fanfic writers might be interested in combining Naruto with 'Highschool DxD' in a certain way, so there are likely to be some that fit the 'Naruto not a devil highschool dxd fanfiction' idea. You might have to dig a bit through different fanfic archives to locate them.
One characteristic could be that the story remains true to the Naruto universe's tone and themes. It would likely have Naruto dealing with his own set of challenges like fighting against the Akatsuki or protecting his village. It wouldn't introduce the harem - like or devil - based elements from 'Highschool DxD'. Also, the characters would be from the Naruto world, with their own personalities and abilities intact, without any 'Highschool DxD' - influenced changes.
Well, the plot could center around Naruto being a godlike figure who decides to attend the high school in the DxD world to understand the devils better. He ends up getting involved in a conflict between different devil factions. His Naruto - like determination and his unique powers, which are a blend of his original ninja powers and new devil - like abilities, help him to resolve the conflict and bring peace to the school. He might also make some good friends among the devils and other supernatural beings, which changes his perspective on them.
First, you need to know the characters well from all three universes. Naruto is a determined ninja with a big heart, Dante is a cool and cocky devil hunter, and the characters in Highschool DxD have their own unique supernatural abilities. Then, think of a good plot. It could be a simple story like they all team up to fight a powerful enemy that threatens all their worlds. Or it could be more complex, like a mystery that involves the different power systems of each universe.
He would fit in as a unique and powerful character. His abilities would make him a force to be reckoned with. He could use his speed and strength to compete with the devils and other supernatural beings in the DxD world.
A Super Devil Naruto in Highschool DxD fanfiction would likely have a lot of action and adventure. Naruto could learn about the different powers in the DxD world like sacred gears and demonic powers. He might even try to combine his ninja powers with these new powers. His relationships with the characters in Highschool DxD would also be a major part of the story. He could befriend some, and be at odds with others depending on their values and goals.
One great Naruto, Devil May Cry and Highschool DxD fanfiction could be where the characters from different universes meet in a high school setting. For example, Dante from Devil May Cry might be a transfer student in the Highschool DxD world, and Naruto could end up there due to some strange ninja jutsu gone wrong. There are often stories that explore how their powers interact and how they deal with the different challenges in this new combined world.
One idea could be that Naruto is somehow transported to the world of Highschool DxD. He could use his ninja skills and chakra in the new world, maybe even teach some of the characters there a thing or two about combat. For example, he could show Issei how to better control his power using chakra control techniques.
The female characters from Highschool DxD, like Rias, would be intrigued by the unique personalities of the Naruto characters. Rias might see potential in some of them to join her peerage. And the Naruto girls, like Sakura, would be a bit shocked at first by the more revealing outfits and flirty nature of some of the Highschool DxD characters. But over time, they would bond over things like protecting their friends and the school. The Naruto boys would respect the power of the Highschool DxD devils and might even try to incorporate some of their fighting strategies into their own ninja combat styles.