As far as I know, there isn't a widely known fanfic solely focused on Beerus and Champa's father. However, the Dragon Ball fan community is vast and creative. Some fans might be interested in exploring the backstory of their father, but it's not a common theme that pops up regularly. You could try checking out some of the bigger fanfic platforms and search for related keywords to see if there are any hidden gems.
A powerful, ancient being from a forgotten universe could be the main antagonist. This being could be jealous of Beerus and Champa's power and status, and decides to challenge them to take over their universes.
One idea could be a cooking competition between Beerus and Champa. They could each bring their own unique ingredients from their universes and compete to make the most delicious dish. It would be a fun way to show their rivalry in a different light.
It could include the origin story of their father. Maybe how he came to be a powerful being in the Dragon Ball universe. It might also explore his relationships with other deities.
One possible scenario in a 'Lord Beerus in love' fanfiction could be that he falls for a mortal. This would create a huge contrast as he is a god. His love for the mortal might make him question the differences between gods and mortals. He might try to find a way to make the mortal immortal so they can be together forever. It could also cause conflict among the other gods who might not approve of such a relationship. They could see it as a disruption to the natural order. And Beerus would have to fight against their opposition to be with the one he loves.
One possible scenario in this fanfiction could be that Cooler, being the powerful villain he is, initially challenges Beerus. But Beerus, with his godly power, easily overpowers Cooler. This encounter could lead to Cooler realizing the vast gap between his power and that of a god, and perhaps he decides to change his ways to become stronger in a different, more honorable way.
In such a fanfiction, the story might focus on how the male reader influences Beerus. Since Beerus is such a strong and complex character, the male reader could bring out different sides of him. For example, the male reader might introduce Beerus to new concepts or experiences that are not common in Beerus' world, which can lead to interesting plot developments.
A 'Lord Beerus in love' fanfiction is compelling when it delves into his character transformation. His personality is so dominant in the original series that seeing it shift due to love is fascinating. For instance, if he becomes more gentle or starts to care about things he previously ignored because of his love interest. It also makes for an interesting read when the fanfiction explores the power dynamics. Since he's a powerful being, how does he handle his strength in the context of a relationship? Does he hold back or does he use his power to protect his love in a more extreme way? These aspects add depth to the story.
One great 'Dragon Ball Z Lord Beerus Fanfiction' is 'Beerus: The God of Destruction's New Adventure'. It shows Beerus exploring new universes and facing unexpected challenges. It's really exciting as it delves into his character more deeply.
Another interesting concept is a crossover with the Star Wars universe. Beerus could find himself in the middle of the conflict between the Jedi and the Sith. His neutral stance in the beginning could change as he discovers the true nature of the Force. Maybe he decides to side with one group or tries to end the conflict in his own unique way, which would be a fascinating exploration of both universes.