Stories often live or die based on the quality of the hero at their center. Heroes are something that exist within the human psyche and have always captivated people for their great deeds. The ability to rise above and overcome is something nigh on universal in its ubiquity throughout storytelling. There is nothing more exciting than following a hero on their journey through their challenges, seeing how they will defeat their foes and who they will be as they come out the other end. Heroes always end up changed by their adventure.
Source:https://www.cbr.com/honen-anime-hero-journey/