This is Goku. He's the main character through most of the series. ( Gohan takes over after he dies the second time )Incredibly strong for his age ( which he claims to be 14, but then notices that he can't count )
He soon bumps into a girl named Bulma, which tells him about the Dragon balls and what they do. This is the start of his journey.
After many Adventures, he becomes an adult, marries Chi-Chi, has one son named Gohan, and then another after him named Goten. Goku soon finds out that he isn't human when he comes across his brother Raditz. Raditz is furious when he finds out that Goku hasn't even started taking over the planet Earth. Raditz tell Goku the truth and then he understands why his son, Gohan ,has a tail.