Who are the main characters in the 'Goku meets Grandpa Gohan in Otherworld' fanfiction?

Perhaps in the fanfiction, Goku accidentally ends up in a different part of Otherworld where he stumbles upon Grandpa Gohan. Grandpa Gohan could then take Goku on a tour of Otherworld, showing him all the different areas and the souls there. They might encounter some old enemies or friends who have passed away. And along the way, Goku and Grandpa Gohan could strengthen their bond and Goku could grow as a character from the experience.

Goku and Grandpa Gohan's interaction could be full of wisdom - sharing. Grandpa Gohan was a wise man, and he would pass on more of his knowledge to Goku. Goku, in turn, would tell Grandpa Gohan about all the new friends he has made and the different planets he has visited. They might also spar a bit, just like in the old days, with Grandpa Gohan giving Goku some pointers.

One possible plot could be Goku reminiscing about his past with Grandpa Gohan. Maybe he visits the place where they used to train together. He could find an old relic or something that Grandpa Gohan left for him, which triggers a flood of memories and emotions. This would be a heartwarming story about their relationship.

It could be a new villain created specifically for the fanfiction. Maybe a powerful sorcerer who wants to steal the Saiyan's power.

Another possible main character could be the villain that forces the two Gokus to meet. This villain could be a new, super - powerful threat that the two Gokus need to deal with. Their meeting becomes a crucial part of the story to defeat this powerful foe.

In this fanfiction, Gohan might learn valuable life lessons from Grandpa Gohan. Maybe Grandpa Gohan would teach Gohan some old - fashioned martial arts techniques that have been forgotten over time.

Obviously, Goku and Goku Jr are the main characters.

There could also be other characters from the Dragon Ball universe making an appearance. For example, Vegeta might show up. He could be curious about Fem Goku and how she compares to Goku in terms of power. Or Bulma could be there, perhaps she's interested in the technology or biology behind Fem Goku's existence.

Sometimes other characters can also be important. For instance, Piccolo from Dragon Ball might show up to give Gohan some advice or help in the fanfiction. In the Naruto side, Sasuke could also be involved, perhaps starting off as an antagonist to the new team - up of Gohan and Naruto, but then later joining them. Also, characters like Bulma from Dragon Ball could play a role, maybe she creates some device that helps in the story, like a way to translate between the Saiyan and ninja languages.

In a fanfiction where Future Gohan meets Goku, it could be an emotional reunion. Gohan might be filled with a sense of relief and joy, seeing his father again. He could show Goku all the things he's been through in the future, and Goku would be both proud and sad about what his son has endured.