As a young boy, Krillin studied martial arts with Goku under Master Roshi. Originally, he and Goku were fierce rivals, but now they are best friends. A short, bald warrior, loyal Krillin provides comic relief in tense situations as he tries to keep up with Goku and some of the other more powerful warriors. A good fighter on his own accord, he's always there to help Goku. He can and has saved his friend's life more than once. Goku constantly encourages Krillin to have confidence as he learns to be a remarkable fighter.