Caulifla and Goku's relationship in fanfiction could be really interesting. Maybe in this fanfiction, they start as rivals. Caulifla, with her Saiyan pride, wants to prove she's stronger than Goku. But as they fight more, they begin to understand each other's fighting styles and develop a mutual respect. This could lead to some really cool training sessions where they both learn new techniques from one another.
Goku's understanding of different universes and races could be deepened in fanfiction. Since Dragon Ball Super introduced the multiverse concept, fanfiction could explore how Goku interacts with and learns from beings from other universes, making him more worldly and less naive in some ways.
One of the interesting power - ups could be his Ultra Instinct form. In fanfiction, it might be further enhanced, like having different levels that are not shown in the original. For example, he could have an Ultra Instinct - Kaioken combination which would be extremely powerful.
One possible fanfiction idea could be that Goku's daughter has unique powers that are a combination of his Saiyan strength and something new, like the ability to control time on a small scale. She might struggle to fit in with the other Z - fighters at first because they see her as just Goku's daughter, but she proves herself by facing a new, powerful enemy that the others can't defeat easily.
One possible plot could be that Bulma creates a new invention, like a special training device. Master Roshi, being the curious and eager - to - improve martial artist he is, wants to test it out. This leads to a series of comical and action - filled events as Roshi tries to master the new gadget, with Bulma providing her scientific expertise and sassy remarks along the way.
They could have a friendly sparring match. Goku is always up for a good fight, and Caulifla would be eager to test her skills against him. It would be a high - energy battle with lots of fast - paced action and cool power - up moments.
In a fanfiction, their interaction could start with Bulma needing Roshi's help for a mission related to the Dragon Balls. Roshi would be hesitant at first, but Bulma would convince him with her charm and intelligence. As they journey together, Bulma would constantly be tinkering with her gadgets, which Roshi would find both fascinating and a bit annoying. They would also have moments of deep conversation, where Roshi shares his long - lived experiences, and Bulma shares her scientific insights.
Well, in Dragon Ball Super SSJ 4 Goku fanfics, his character development is often quite interesting. His SSJ 4 form is not just about physical power. He could start to understand the spiritual side of his power more deeply. He might go on a journey to find out the true origin of the SSJ 4 form, which leads him to ancient Saiyan or Namekian knowledge. This new knowledge could change his perspective on his role in the universe. He could also develop better leadership skills. Since he's so powerful in SSJ 4, others might look up to him more, and he has to learn to lead in battles and in making decisions that affect the whole group, not just himself.
In a fanfiction, Goku's daughter might inherit a special power from her mother (who could be an original character in the fanfiction). This power could be related to healing or some kind of spiritual energy. She uses this power to heal the injured during a big battle against a powerful villain. This makes her an important asset to the Z - fighters, not just because of her Saiyan heritage from Goku, but also because of her unique ability.