One common theme is self - improvement. Krillin is often depicted as constantly striving to get stronger, whether it's through new training methods or unlocking hidden powers.
One great Krillin fanfiction is 'Krillin's Ascent'. It focuses on Krillin's journey to become stronger, training in new and unexpected ways. He overcomes his self - doubts and insecurities as he rises in power, which is really inspiring.
Their relationship could grow deeper as they face the challenges of pregnancy together. Krillin might become more in tune with 18's needs, and 18 could see a new side of Krillin's caring nature.
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.
The beginning of their love story can be traced back to their encounters in the Dragon Ball universe. Krillin was a Z - fighter, and 18 was an android created by Dr. Gero. At first, they were on opposite sides. But as the story unfolded, Krillin's good - natured personality and his attempts to reach out to 18 made her see him in a new light. This led to a series of interactions that eventually blossomed into love.
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.
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.
Krillin could be developed by showing his growth from being a bit of a coward sometimes to a more confident fighter because of his relationship with Android 18. Android 18 might be developed to show a softer side, especially towards Krillin. For example, she could start to care more about his well - being and show emotions that she previously hid.
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.
Love and affection could be a major theme. The 18 kisses are a clear sign of that. Another theme might be acceptance, as Krillin accepts 18 for who she is, an android, and she accepts him with all his flaws.