One common theme is the exploration of different powers. Naruto has his chakra - based ninjutsu while Ravel has her own set of abilities. Fanfictions often explore how these powers interact and complement each other. For example, Naruto's shadow clone jutsu could be combined with Ravel's magic in creative ways.
It could be a powerful devil who doesn't like the idea of an outsider like Naruto in their world. This devil might see Naruto as a threat to the power balance and wants to eliminate him before he can form strong alliances. He could be a high - ranking noble devil who has his own dark plans for the DxD world and Naruto's presence is ruining it.
One popular 'naruto x ravel fanfiction' might be 'Naruto and Ravel's Unlikely Alliance'. In this story, Naruto, with his positive energy and determination, meets Ravel in a mysterious dimension. Their initial misunderstandings gradually turn into mutual respect as they face various challenges together. They learn from each other's strengths, Naruto's ninjutsu and Ravel's unique powers, which makes for an interesting dynamic in the fanfiction.
One great Oc x Ravel fanfiction is 'A New Bond'. It beautifully develops the relationship between the original character and Ravel in a fantasy - filled setting.
One idea could be that Naruto, through some sort of interdimensional rift, ends up in the world of Highschool DxD. Ravel could be intrigued by this strange new being with his unique powers. Maybe Naruto has to team up with Ravel to face a common enemy in the DxD world, like a rogue group of devils. His ninja skills would be a novelty there and could help them in battles.
Naruto and Ravel might start off as strangers. Naruto would be the curious outsider, and Ravel would be intrigued by his different appearance and powers. Then, Naruto could interact with other DxD characters. For example, he might have some friendly competitions with Issei. As the harem forms, Naruto would have to balance his relationships with different girls. He might have deep conversations with Ravel about their different worlds and values.
The story could unfold in an interesting way. Naruto's ninja skills would be quite a novelty in the Highschool DxD world. Ravel, being a devil, would initially be curious about Naruto. The harem aspect would come into play as Naruto's kind heart and heroic deeds draw in more female characters. They would have to navigate the complex social and power structures of the DxD world. Naruto might teach them some of his ninja philosophies, and together they would create a unique dynamic within the group, facing challenges both from the devils' internal politics and external threats.
There could be a fanfiction where Naruto's chakra is somehow connected to a powerful magic source in Ravel's world. This connection causes chaos at first but then they figure out a way to use it to their advantage. Maybe they use it to restore balance in both their worlds that were being threatened by a common evil. They travel between the two worlds, gathering allies and knowledge along the way.
There are likely some out there. Some fans might write about Naruto and Ravel in a more platonic or adventure - based way. They could explore how the two characters from different universes might interact in a world where they meet, perhaps teaming up to face a common enemy or solve a mystery without any inappropriate undertones.
Well, it could be a very interesting and unique fanfiction. Naruto's world of ninjas and his values like loyalty and perseverance could blend with Ravel's character traits. Maybe they meet in some sort of crossover event. Naruto might be attracted to Ravel's charm, and they could start a relationship that overcomes the differences in their origins.