A major challenge would be the time - space aspect. Naruto's world has its own timeline and geography, and Rias' world is also different in this regard. If they are to have a love story, how do they manage to be in the same place at the right time? And when they are apart, how do they maintain their relationship? These are all difficult questions that fanfiction writers need to address.
In the fanfiction, their love story could be set in a new world where both Naruto's and Rias' universes collide. Maybe Naruto is on a mission in Rias' world and they meet by chance. Naruto's unique powers like the Rasengan would be a novelty in Rias' world, and she would be intrigued. As they get to know each other, they start to care for one another, and love blossoms. It could also involve some cultural exchanges between the two different settings.
They would likely start with some mutual curiosity. Naruto would be intrigued by Rias's devilish appearance and powers, while Rias would be interested in Naruto's ninja abilities. They might exchange stories about their respective worlds, with Naruto talking about his village and his friends, and Rias sharing about the devil society. Interaction could also involve sparring sessions to test each other's strength.
One possible fanfiction idea could be that Rias' sick brother is a key factor in a power struggle within their supernatural world. Naruto, being an outsider with his own set of skills and values, could get involved. Maybe he forms an alliance with Rias to protect her brother from those who would use his illness to their advantage.
In this fanfiction, Naruto might show his jealousy in his typical brash way. He could be all fired up and ready to challenge the person who is making him jealous. Rias, on the other hand, would be more calculating in her jealousy. She might use her devilish powers and influence to subtly drive a wedge between the person causing the jealousy and the object of her affection. They could end up teaming up to get rid of the 'competition' in a rather comical or intense way depending on the tone of the fanfiction.
Definitely. The concept of combining different fictional universes in fanfiction is quite common. In a 'Naruto is Rias' Familiar' fanfiction, we could expect to see Naruto's ninja skills and powers being incorporated into the world of High School DxD. Maybe Naruto would use his shadow clone jutsu in battles in the DxD universe or his rasengan against some of the devils. It could also explore how Naruto, with his strong sense of justice and loyalty, would interact with Rias and the other characters in her peerage.
It's quite possible. Fanfiction writers often come up with interesting and unexpected concepts. Since Naruto and the world of Rias have their own distinct fan bases, combining them in a story where Naruto is a fan of Rias can add a new and exciting twist. You could also check fan - run forums dedicated to either Naruto or High School DxD to see if anyone can point you in the direction of such a fanfiction.
In a Naruto and Temari love story, jealousy could be a significant challenge. Naruto is a popular figure in Konoha, and there are many girls who might have feelings for him. Temari could feel insecure and jealous when she sees Naruto interacting with other girls. Similarly, Temari is a strong and beautiful kunoichi, and there might be men in Suna who are interested in her. Naruto might also experience jealousy in such situations. Moreover, their own insecurities about whether they are good enough for each other could be a problem. Naruto might worry that Temari will find him too simple - minded at times, and Temari might fear that Naruto will eventually lose interest in her because of their differences.
The different life paths they have taken pose a great challenge. Naruto is on a path of growth and becoming a hero, while Itachi has walked a path of secrecy and sacrifice. Their goals and values seem quite different at first glance. For them to have a love relationship, they would need to reconcile these differences. Moreover, the shinobi world is full of danger and missions. Their busy schedules and dangerous occupations could make it difficult for them to develop and maintain a relationship.
Yes, there might be some fanfiction exploring such a unique crossover concept. In the world of fanfiction, writers often come up with creative and unexpected relationships between characters from different series. They might do this to create new storylines, explore different character dynamics, and engage readers who are fans of both 'Naruto' and the series where Rias is from (presumably 'High School DxD').
If Naruto kills Rias in a fanfiction, it might be due to a misunderstanding. Naruto is known for his strong sense of justice. Perhaps in this fanfic, Rias is misrepresented as a threat to Naruto's world or his friends. But it's still quite a shock as they are from different fictional universes with their own moral compasses.