Well, in fanfiction, anything can be possible. Maybe there could be some sort of multiverse situation where the universes of Naruto and Batman collide. It could be that some powerful magic or advanced technology causes Naruto to end up in Batman's world and through some strange circumstances, Batman becomes his father figure. Or perhaps there are some hidden connections between their families in this fictional scenario that are yet to be discovered.
Well, if we consider the concept of fanfiction, it might involve a lot of creative liberties. One way this could work is if there was a reality - warping event. Say a villain was messing with different universes and ended up combining aspects of Wolverine's genetics with someone in the Naruto world, and Naruto was born as a result. It's all about bending the rules to create an interesting and unique story.
Well, in a fanfiction, anything can be possible. Maybe there could be some sort of multiverse concept where different universes collide. Naruto's world and the Dragon Ball universe cross paths, and through some magical or scientific means, Naruto ends up being related to Frieza. It could be that some powerful being meddled with their fates and created this strange connection.
In this fanfiction concept, it could be that Odin had a secret mission in the Naruto world. He might have fallen in love with a kunoichi there, perhaps someone with special powers or a noble lineage. Their union could have led to Naruto's birth. It would also mean that Naruto would potentially have some latent god - like powers from Odin that could be explored in the story, like enhanced strength or the ability to control some Norse - inspired elements.
It could also be a result of a powerful jutsu in the 'Naruto' universe gone wrong. Suppose a ninja was experimenting with a space - time ninjutsu and accidentally pulled in elements from the 'Star Wars' realm. Darth Vader's dark side energy might have influenced the creation of Naruto in this new, alternate reality. However, this would require a lot of suspension of disbelief as the two universes have very different rules regarding magic and technology.
One way this could be possible in a fanfiction is through some sort of multiverse or dimension - hopping concept. Maybe there's a rift in the fabric of the universes that causes the DNA of Spider - Man to somehow merge with the world of Naruto. Another idea could be that some sort of powerful magic or jutsu is involved that links the two characters in a way that Naruto ends up being his son. It's all about creative and out - of - the - box thinking in fanfiction.
Well, in a fanfiction world, anything can be made possible. Maybe it could be some sort of magical cross - over event. For example, Aphrodite could have visited the Naruto universe in a disguised form and had a relationship with Naruto's father without his knowledge. Or there could be some powerful jutsu or magic that links the two different mythologies and makes Naruto her son.
This idea is quite out - there in fanfiction. One way it could work is if there are some powerful deities or beings in both universes who decide to manipulate the fates of characters. They could use their powers to transplant Naruto's essence into a new world where Gohan and Videl exist and make them his parents. However, this would completely change Naruto's origin story and his character development would have to be re - imagined in the context of the Dragon Ball world, which has very different power systems and cultures compared to Naruto's world.
Well, it could be possible through the concept of alternate universes. In fanfiction, writers often create scenarios where different fictional worlds collide. Maybe Naruto discovers a magic portal that leads him to a world where Excalibur exists. And his ninja skills combined with the power of Excalibur would make for an interesting story.
Perhaps it could be due to a powerful magic that was misfired or experimented with. Dumbledore could have been involved in some sort of arcane experiment that sent his essence or a part of his magic to the Naruto world. This magic then interacted with a local in the Naruto world, and Naruto was born as a result. In this scenario, Naruto would grow up with a strange mix of ninja training and an inherent magical ability that he doesn't fully understand at first, but as he discovers his connection to Dumbledore, he learns to harness it.
Maybe Nagato had a relationship with an Uzumaki woman before he became fully involved in the Akatsuki. This woman could have given birth to Naruto but for some reason, Naruto was separated from Nagato at a young age. It could be due to the chaos and danger that Nagato was getting into with his plans for the Akatsuki.