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basically, it's about the struggle between good and evil. [14] At first some of the characters intend to gather the seven Dragon Balls to ask for some personal desire, but they learn that these objects are also sought by others for evil, which leads them to face them on more than one occasion. Later on, they appear more powerful than previous adversaries, with objectives such as conquering the Earth or exterminating humanity; [15] so that there are several elements characteristic of science fiction in the plot. [16] Goku and his friends represent good and try to eradicate evil with the help of the Dragon Balls and other magical objects, without death representing a final obstacle for them, as they can revive with the help of these objects. [17]

One of the values ​​is about friendship, since several of the wishes that the protagonists asked when joining the spheres were to revive friends who died. In addition, Goku will always help his friends when they are in danger. [16] [16] The protagonist offers an image of "redemption and hope", as well as personal growth, increasing his power significantly as the series continues: "Goku struggles to improve and develop his skills because he makes him feel stronger and happier [ ...] Look for stronger enemies to force yourself to improve and prove that you are better than before, not to ratify your existence and invalidate your opponents ". [16] The latter is exemplified in the different moments when the character is excited to meet a challenging enemy or when, just before defeating Majin Boo, he says, "[Majin Boo] You are an incredible being, I admire you very much because you gave the best of you. It went through several transformations, it was so powerful that we all hate you. I hope you will be reborn as a good person, I will be waiting for you to fight. I will also train, I will train a lot to get stronger.