Krillin (クリリン, Kuririn) is a Earthling and a Martial Artist of the Turtle School and Best Friend of Goku, that debuted in the Dragon Ball. He later marries Android 18, and they have a daughter named Marron. He is the grandfather of Kaiyo. Krillin is also the grandfather of Jin. Krillin is later the new Martial Arts Master of the Turtle School after Master Roshi retires. Krillin appears in the entire Dragon Ball Meta series.