Named after his adoptive grandfather, Gohan is Goku and Chi-Chi's eldest son. He is idealistic, good, and pure like his father.
With Goku's departure to the next dimension and the eminent arrival of the Saiyans, Gohan is key to the survival of Earth. Thus Piccolo, a former enemy of his father trains Gohan for the upcoming battle. Although initially a wimp, Gohan's training in the wilderness and subsequent fighting make him both brave and loyal.