Goku is the main character throughout the Dragonball series. He is first seen in the Dragonball series. He lives with an old man named Grandpa Gohan until one day G. Gohan was killed and Goku goes on a adventure with Bulma to find seven Dragonball's. While he was searching for the Dragonball's he meets master Roshi who later on trains him along with Krillin. He later marries Chi Chi and they have a son named Gohan.