One of the most powerful Earth-born fighter. He starts training
with Gokou under the guidance from Master Roshi at a very
young age. In the beginning, Krillin is training just as hard as
Gokou, however, because of Krillin's lazy personality, he starts
taking lots of short cuts and eventually Gokou becomes
stronger and stronger. Krillin is a Buddhist monk, which is also
why he has a shaved head. He has a dirty mind and loves to
check on other girls (like Master Roshi), and it seems if Krillin
is just useless and doesn't know how to fight. However, Krillin is
really the one who has the most potentials, he started training
with Gokou at a young age and didn't stop training till his late
20's where after that he started to slack off more and more
and eventually he stopped fighting completely. Which is also why he started as a main
character in DragonBall but later became more of a supporting cast in DragonBall GT.