I think the cultural clash would be fascinating. Naruto comes from a world of ninjas with its own values, traditions, and social structures. Highschool DxD has a more modern, supernatural - based society with different power hierarchies. Seeing how Naruto adapts to this new world, and how the characters from Highschool DxD react to him would be really engaging. For example, Naruto's straightforward and determined personality might be a shock to some of the more sly or conniving characters in Highschool DxD. And his ninja training might give him an edge in dealing with the various challenges in the new world.
The character interactions would be the most interesting aspect. Imagine Naruto interacting with Issei, the main character of Highschool DxD. They have different outlooks on life and different goals. Naruto is more about protecting his village and achieving peace, while Issei is focused on becoming a harem king. Their conversations and how they might influence each other could be really fun to read. Also, Naruto's interactions with the female characters in Highschool DxD could lead to some unique and comical situations, considering his somewhat naive nature when it comes to romance in his own world.
The most interesting aspect could be the character interactions. Naruto, with his positive and determined attitude, would interact with the characters from High School DxD. His ninja skills and abilities would also add a new dynamic to the story. For example, his shadow clone jutsu could be used in some really creative ways in the High School DxD setting, like in battles or even in school pranks.
The most interesting aspect is the combination of different power systems. Naruto has his chakra - based ninjutsu, while Highschool DxD has the power of Devils, Angels, and Fallen Angels. When these two power systems interact in fanfiction, it leads to really cool battles and strategic situations. For example, Naruto's Shadow Clone Jutsu could be used in a very different way against the DxD characters compared to how it's used in the Naruto world.
One interesting plot point could be the power exchanges. For instance, a character from Naruto might gain a devil fruit - like ability from Highschool DxD. Another could be the cultural clashes. The shinobi values of Naruto might be at odds with the more hedonistic values of Highschool DxD.
One interesting theme is the power - up concept. In Naruto, characters often gain new powers and abilities. When combined with the high - octane action and demonic powers of DMC and the unique abilities in Highschool DxD, it creates really exciting scenarios. For example, seeing a character from Naruto use Devil May Cry's combat styles while having the powers from Highschool DxD.
Well, one interesting plot twist is when the Nine - Tails in Naruto is somehow linked to a powerful devil in Highschool DxD. Imagine the chaos and new power - sharing or battling that could occur. It completely flips the script on how we see both the Naruto and Highschool DxD elements. Also, there could be a plot twist where the power - leveling system in Highschool DxD is reversed for Naruto characters, making them struggle in a new way and forcing them to adapt in unexpected ways.
Naruto and Rias would be an interesting combination. Naruto's positive and determined attitude could contrast with Rias's more calculated and devilish nature. They could learn a lot from each other. Naruto could show Rias about the importance of believing in oneself without relying too much on power, while Rias could introduce Naruto to the complex politics and power structures in her world.
I think Naruto himself would be the most interesting. His positive attitude and never - give - up spirit would be really unique in the Highschool DxD world which has a lot of complex power struggles and some rather morally grey areas. He could bring a fresh perspective and also his powerful ninja techniques would make him a force to be reckoned with in battles against devils and angels.
I think Naruto would be the most interesting. His energetic and determined personality would stand out in the Highschool DxD world. He could bring his ninja way of life and values, which are quite different from the devilish and angelic cultures in DxD. His ability to make friends easily might also lead to some really unique interactions with the DxD characters.
Naruto and Rias would be really interesting. Naruto's straightforward and determined personality combined with Rias' leadership and strategic mind could lead to some great interactions. They could learn from each other's fighting styles and ways of dealing with problems in their respective worlds.
Rias from Highschool DxD would be an excellent choice too. Her leadership skills and her role as a devil could be explored in relation to the Naruto characters. She could be intrigued by Naruto's power and try to recruit him into her peerage, or she could learn from Naruto's way of leading his friends and comrades in battle.