Yajirobi is a master swordsman with an appetite that rivals Goku's. He's an excellent martial artist, not on par with Goku and the others, but his sword makes up for that. Goku meets him when he is going after one of Piccolo Daimou's creatures. He never plays a major role, neither in DB or DBZ, but he does manage to come through when he's really needed. Despite being as big of a coward as Oolong.