who is master roshi
Master Roshi (æ­¦å¤©èå¸«, Muten RÅshi) is the founder of the Turtle School in the original Dragon Ball. He's the teacher of Goku, Krillin, and Yamcha. He normally lives at Kame House with his pet Turtle. In the original series, Master Roshi was the founder of the Turtle School and the inventor of Goku's signature Kamehameha Wave technique.