Krillin had a brief rivalry with Goku when they first met and trained under Master Roshi, but they quickly became lifelong best friends. One of the most powerful and talented martial artists on Earth, Krillin is courageous, a faithful ally and good-natured. He is a prominent Z Fighter, despite usually being overpowered by the major enemies. His short stature and baldness (with the exception of when he grows out his hair in the Majin Buu Saga onwards) aid him in his ability to provide comic relief during tense moments. During the latter half of Dragon Ball Z, he largely retires from fighting, opting to settle down with his family instead, becoming the husband of Android 18 and the father of Marron. However, he returns to his lifestyle as a warrior later on in Dragon Ball Super.