He is loosely based on the character Sun Wukong from Journey to the West by Wu Cheng'en. Creation Sun Wukong and Son Goku by Akira Toriyama After the death of his adoptive grandfather, Goku essentially raised himself alone in the mountains. While in this transformed state, he accidentally murdered Gohan. He instructed the boy never to look at the moon, but Goku disobeyed and transformed into a Great Ape. Gohan instructed him in martial arts, and became aware of the transformations that Goku underwent when he was exposed to the full moon. Initially a difficult and violent child, Goku suffered head trauma in an accident and became more friendly and amenable after recovering. On Earth he was taken in by the elderly Son Gohan, who named him Son Goku. Sensing the impeding danger to the Saiyan race from Frieza, Kakarot's parents secretly sent him off planet to Earth when he was only three years old. The son of Bardock, a low-class Saiyan warrior and Gi-ne, Kakarot was born on Planet Vegeta in or around Age 737.
Origin Kakarrot's parents plot to save their son.