Goku's best friend is Krillin.
While Goku has formed many strong bonds throughout the Dragon Ball series, his relationship with Krillin stands out due to its longevity, shared experiences, and mutual respect. Their friendship began during their martial arts training under Master Roshi and has endured through countless battles against powerful foes.
Key Aspects of Their Friendship:
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Early Training and Shared History: Goku and Krillin were initially rivals but quickly became training partners and friends under Master Roshi. This shared experience forged a strong foundation for their bond.
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Mutual Respect and Trust: Goku deeply respects Krillin's fighting abilities and trusts him implicitly. Similarly, Krillin admires Goku's strength and unwavering determination.
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Shared Battles and Experiences: They have fought alongside each other in numerous battles, facing threats ranging from Piccolo to Frieza to Cell. These shared experiences have strengthened their bond.
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Emotional Support: Krillin often serves as a voice of reason for Goku and provides emotional support during difficult times. Goku, in turn, is fiercely protective of Krillin.
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Longevity: Their friendship is one of the longest-lasting and most consistent relationships in the Dragon Ball series.
Therefore, considering the depth, history, and unwavering nature of their bond, Krillin is unequivocally Goku's best friend.