Well, this one guy I don't really think of a hero, just as someone I can relate to. Yu-Gi-Oh! GX's Judai Yuki. He's relaxed during most of his time at Duel Academy, having fun and everything, then comes a time where he has to realize that not everything's about having fun, and he has to grow up. Of course, before him, I was able to relate more to Yugi. He always got picked on and then discovered something that made him able to bear through it all. In my case, I got bullied a lot through middle school, and I discovered the Yu-Gi-Oh! TCG game, and that's what got me through it all. Nowadays, I still play the game because of that, and to have fun in doing so (which goes back to the Judai thing).
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If the above post made no sense...I dunno what to tell you.