Fanfiction thrives on creativity and breaking boundaries. In the case of Naruto being Trunks' dad, it could be due to a complex backstory. Maybe Naruto was sent to the Dragon Ball universe for some reason, and there he met Bulma and got involved in a relationship. Their union led to the birth of Trunks. However, this would completely rewrite the lore of both series, but that's the fun of fanfiction - creating alternative stories and exploring 'what - if' scenarios.
In this kind of fanfiction, it might be that there's a special crossover event. For example, perhaps there's a powerful entity that messes with the fabric of reality and combines elements from the Naruto and Dragon Ball universes in a strange way. This could lead to Naruto being Trunks' dad in this fictional setting. It's all about the creativity of the writer who wants to explore new and unexpected relationships between different fictional worlds.
Well, in some fanfiction concepts, it could be possible through some sort of magical or spiritual connection that was misinterpreted in the Naruto universe. Maybe there was a powerful jutsu in the past that bound Naruto's essence to the Kyuubi in a way that made it seem like he was its father in this alternate storyline.
Well, in fanfiction, anything can be possible. Maybe it could be due to some magical cross - over event. Perhaps a powerful magic combined the different worlds of Tarzan, Elsa, and Anna, and as a result, Tarzan became their brother in this fictional scenario.
In a fanfiction, anything can be possible. Maybe the author creates a crossover universe where the Naruto and Dragon Ball universes collide. It could be due to some magical or scientific experiment that links Naruto and Trunks as brothers. However, this is completely against the original storylines of both Naruto and Dragon Ball, but that's the fun of fanfiction - to explore wild and creative ideas.
One possible plotline could be that Naruto's dad, who is an Aizen fan, tries to incorporate some of Aizen's leadership or strategic thinking into his own actions in the Naruto world. Maybe he uses Aizen - like deception in battles but for good purposes, like fooling the enemy to protect the village.
The relationship between Naruto and Bulma would be really fascinating. Since they are from two very different worlds, seeing how they interact, fall in love, and build a family would be a major plot point. Also, how Naruto would train Trunks in his own ninja - like way while Trunks also has his Saiyan powers would add a lot of depth to the story.
Their relationship could start as a professional one, where they are just allies in a time - related mission. But as they spend more time together, they could start to trust each other more. For example, Trunks could share his fears about the future with the Supreme Kai of Time, and she could offer him some words of wisdom and comfort.
Their relationship could develop through training together. As they train, they learn to respect each other's abilities more. For example, Trunks might be impressed by Pan's tenacity and Pan could admire Trunks' strength.
A dad might be trying to cook a special meal for the family but is clueless about a certain recipe. His wife, an experienced cook, helps him by guiding him through the steps, like how much of each ingredient to use and the right cooking time. So the dad can successfully make the meal.
The relationship could develop in a more emotional way. Maybe Trunks gets injured badly in a fight, and Vegeta realizes how much he cares for his son. He then becomes more protective and affectionate towards Trunks. On the other hand, Trunks could also start to understand his father better, seeing that Vegeta's tough love is actually a way of showing his love and concern. This new understanding could lead to a more harmonious and loving relationship between them.
Trunks could become Goku's mentor in some aspects. Since Trunks comes from a more technologically advanced future, he could teach Goku about advanced energy - manipulation techniques that are not yet known in Goku's time. This would create a new dynamic in their relationship as Goku looks up to Trunks in this particular area while still being the overall more experienced fighter in terms of raw combat.