A cult disguise
Jackie Chun is in fact Muten Roshi, the martial arts master of Goku and many other characters of the Dragon Ball series afterwards. He decides to put on a wig and to take on this new identity in order to give his students a challenge so that they don’t rest on their laurels. He enters martial arts competitions during which he will meet several of his students, including Goku, still a child at this period of the manga and the anime series. On the other hand, he keeps his usual personality traits such as being a bit perverse.