The main character in the series, Goku is always fighting for the good of others. We follow his life from a little boy with a weird tail to the strongest fighter that has ever lived. Goku is a second class saiyan, which is not very prestige. But with lots of trainings, efforts and mainly his desire to help others, he succeeds. Goku manages to overcome his opponents, who are much stronger then him. Even as a grown man, Goku is still a goodhearted, naïve and a little slow in some situations. All this makes him the Protector of Earth and Universe.