You: Saitama

He's just a guy who's a hero for fun. Three years ago, he quit his job search to become a hero and trained like hell. He trained so hard that his hair fell out, but he also became the strongest, capable of felling most foes in one hit. He's a fairly simple guy though, and doesn't get much recognition or seek lofty goals. He can be fairly wise at times though and has been known to share that wisdom with others. He only wants a discount at the super market and a fight that makes him struggle.