How about a story where Cabba and Caulifla are sent on a mission to find a lost Saiyan artifact? During their journey, they face many obstacles and have to trust each other completely. Their relationship evolves as they learn more about their Saiyan heritage through the search for the artifact.
A plot could be Cabba confessing his feelings to Caulifla. He might be nervous at first, but after a big battle where they protect each other, he finds the courage. This would create a new dynamic in their relationship.
One great fanfiction could be about Cabba training Caulifla in a new technique. In this story, Cabba's patient teaching style could help Caulifla master a powerful move that she then uses to save their planet from a new threat. It would show their relationship growing as teacher and student, and also as friends.
Their relationship could also be one of friendly rivals. They are both strong Saiyans. Caulifla might constantly challenge Cabba to battles to prove that she is just as good as him or even better. And Cabba would take these challenges seriously, which in turn would make both of them improve their skills and power levels.
Training under Goku would expose them to a whole new level of fighting. They would get to spar with Goku and other Z - Fighters. This would not only improve their physical strength but also their combat strategies. They might even develop new techniques inspired by Goku's fighting style. And they could bring back what they've learned to their own Saiyan race to help it grow stronger.
A fanfiction could focus on Cabba teaching Caulifla about his Saiyan heritage from Universe 6. He could share stories of his training and the values he holds dear. This could lead to Caulifla becoming more interested in her own Saiyan roots and the two of them developing a deeper connection through this cultural exchange.
A plot could involve Caulifla being from a parallel universe where she is the only survivor of her race. Goku meets her during a multiverse tournament and decides to help her. As they train and fight side by side, they develop a deep bond that goes beyond friendship and they explore their new relationship while facing various challenges from other universes.
One idea could be a story where Cabba helps Caulifla and Kale train for a big tournament. They face various challenges together and Cabba's unique fighting style influences the sisters to develop new techniques. In the end, they all become stronger and their friendship deepens.
An idea could be that Cabba and Caulifla are chosen to represent their universe in a multiverse tournament. They train hard together, pushing each other to their limits. During the tournament, they face off against powerful opponents from other universes. Their teamwork and combined power help them win some tough battles, and they gain a new level of respect for each other.
One interesting plot idea could be Goku training Caulifla in a new form of Ultra Instinct. This would allow for a deep exploration of their mentor - mentee relationship. Caulifla is already a strong fighter, but with Goku's guidance, she could reach new heights. Another plot could involve them teaming up against a powerful new enemy that neither could defeat alone. They'd have to combine their unique fighting styles and powers to win.
Another fanfiction could be set in an alternate universe where Cabba and Cauliflower are from different factions that are at war. However, they realize that the real enemy is a hidden force that is manipulating both sides. So they have to overcome the differences between their factions and work together to expose and defeat this hidden enemy. This would involve a lot of character development as they deal with the prejudices of their respective groups and learn to trust each other.
A simple plot could be that Cabba and Lemon meet by chance. They then find out that they both have a common enemy. They start to train together to become strong enough to face this enemy. As they train, they share their knowledge and skills with each other. Eventually, they defeat the enemy and become heroes in their world.