The growth of the protagonist in Solo Leveling reflects the themes of perseverance, strength, and self-improvement. As the protagonist faces various challenges and obstacles, he continues to push himself to become stronger and more capable. This growth highlights the idea that through determination and hard work, one can overcome any challenge and reach their full potential. Just like the protagonist's journey in Solo Leveling, the themes of the series emphasize the importance of continuous self-improvement and the rewards that come with pushing oneself beyond limits.
