Issei, being the hot - blooded character he is, would probably be excited to meet someone as powerful as Naruto. He might challenge Naruto to a friendly spar at first, hoping to learn from him and test his own strength. And as he gets to know Naruto better, he could start to see him as a brother - in - arms, especially if they face common enemies together.
In some Highschool DxD and Naruto crossover fanfictions, Naruto might be depicted as a god - like figure. This could be due to his extremely powerful abilities in the Naruto universe, such as his vast chakra reserves, multiple jutsu, and his status as a hero in his own world. Writers may take these aspects and amplify them in the Highschool DxD setting, where the power levels and the concept of beings with god - like powers already exist. So, it's possible for Naruto to be seen as a god in such fanfictions.
In this fanfiction, Naruto's god - like status would surely affect his relationships. The characters from Highschool DxD might initially be in awe of him or fear him. His friends from Naruto, if they exist in this crossover, would likely be his closest allies. And he might form new friendships with some of the good - natured characters in DxD, like Issei's group perhaps. But he could also have adversarial relationships with the more power - hungry or evil characters who would see his power as a threat.
Some Naruto characters would likely be very confident in a Highschool of the Dead - Rei fanfiction setting. For example, Naruto himself would probably jump right into action against the zombies. He'd see it as another challenge to overcome and would use his Rasengan or other jutsus without hesitation. Sasuke, on the other hand, would be more calculating. He'd analyze the situation of the zombie apocalypse and the role of Rei and others before making a move.
The uniqueness lies in the combination of two very different universes. Naruto has his own set of ninja powers and a distinct backstory, while Highschool DxD has its own supernatural elements. When combined, it creates a whole new world of possibilities. For example, Naruto's jutsu could be used in a way that surprises the characters in the Highschool DxD world, and vice versa.
Yes, there are some interesting ones. You can start by looking on fanfiction websites like FanFiction.net or Archive of Our Own. Just search for 'God Naruto Highschool DxD' in their search bars. Some of these fanfictions might combine the unique powers of Naruto in a Highschool DxD setting, creating new and exciting storylines.
If Naruto was a god in Highschool DxD fanfiction, he would likely change the power dynamics completely. His abilities could overpower many of the existing characters in the Highschool DxD universe. For instance, his speed and strength, enhanced by his god - like status, would make him a formidable opponent in battles. He might also attract a lot of attention, both from the good and the bad characters in the story, as his power would be a great asset or a threat.
It would probably be really interesting. Naruto's skills and abilities as a 'god' would likely disrupt the normal flow of the Highschool DxD world. Maybe he'd use his ninja techniques in battles against the devils and angels in that universe.
He might react with hostility. Dark Naruto has a certain edge to him, and if he sees Rias as a threat or someone he doesn't like, he'll likely oppose her. He could use his combat skills to challenge her directly.
Some characters might be intrigued. For instance, Issei might be curious about Fem Naruto's fixation on Ophis. He could see her as an interesting addition to their world and might try to understand her motives. Rias, on the other hand, might be more cautious. She would likely be concerned about how Fem Naruto's admiration for Ophis could affect the balance of power in their territory.