20화: 가이오우가 손오공에게 사이야인 역사를 공유하기 전에 그레고리를 망치로 치라고 명한다

After Goku completes the first phase of his special martial arts training King Kai instructs him to bash Gregory with a hammer. Easier said than done. After an exhaustive chase, King Kai tells the story of the Saiyan race. Inspired, Goku resumes his training and eventually manages to put the hammer to Gregory. Impressed, King Kai agrees to train Goku personally. But will it be enough to stop the incoming Saiyan invasion of Earth? (Source: dbzepisode.org)

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