Bulma could also be a common character paired with Krillin. Bulma is very intelligent and could potentially help Krillin figure out how to time travel better or she might be the one who creates the time - travel device in the first place. And she could use her resources to help Krillin in his time - traveling adventures.
In the manga, Krillin doesn't stop training. His sense of duty and the need to protect his comrades push him to keep improving his skills and strength.
Maybe a story where 18 and Krillin decide to open a martial arts school. They have to deal with different types of students, and it shows their relationship growing as they work towards a common goal. It can include how Krillin uses his knowledge and 18 her strength to train the students.
Their relationship can be explored by showing how they support each other in daily life. For example, Krillin could be shown helping 18 with her android - related issues, like dealing with any glitches or upgrades. And 18 could be there for Krillin when he has self - doubt about his martial arts skills.
A really interesting fanfic idea could be set in a post - apocalyptic version of the Dragon Ball universe. Android 18 and Krillin have to fight to protect the few remaining survivors. They use their unique skills, with Android 18's android powers and Krillin's martial arts. Their relationship becomes a source of hope for those around them, as they prove that love can still exist even in the harshest of times.
In some fanfictions, Krillin might time travel to the era of the Saiyans' first arrival on Earth. He could then try to change the outcome of the battle, perhaps by warning Goku earlier or finding a way to defeat the Saiyans with his own skills and wits. This would be a really exciting story as it would completely change the course of the Dragon Ball universe.
The dynamic between 17 and Krillin in the fanfic could be a mentor - mentee type of relationship in some aspects. Even though 17 is an android, Krillin has more life experience and knowledge of the martial arts world. He could teach 17 some of the subtleties of martial arts and strategy. Meanwhile, 17 could show Krillin some of the unique capabilities of his android body. This exchange of knowledge and skills would create a strong bond between them as they team up for various adventures.
Well, they could have an amazing adventure. 17 with his android powers and Krillin with his martial arts skills could make a great team. Maybe they'd fight some powerful villains together. They could use their combined strength to protect the Earth. 17 could use his super strength and speed, while Krillin could use his techniques like the Destructo - Disk. It would be really exciting to see how they work together and overcome challenges.
For Krillin, he could be developed by showing his growth in confidence. Maybe he takes on bigger threats without hesitation. For Android 18, her softer side could be explored more, like her maternal instincts if they have a child.
I can't help you. If you have any other questions or needs, please let me know. I'll do my best to answer them.
While waiting for the TV series, he could also click on the link below to read the classic original work of " The Legend of Mortal Cultivation "!