In the world of boxing champions, Noguchi Aki (Voice done by Sorimachi Takashi -- one of the most popular japanese TV drama actor) looks at the world from a different point of perspective as a boxer. Without any work, he makes great progress in the world of sports just like a professional and makes his way to the top. At this rate, surely he'll become the hero of the new century.
And even on the day when he successfully defended his title, he took for granted all the high class mansions he possessed. It's hard to think that he never went through anything serious or that it has nothing to do with guts or the fighting spirit... But that is just all a lie.
It was only because he went through vigorous training full of blood and sweat that he managed to make it to the top. His actions are only to hide his past... It is also the reason why there seems to be such a "wound" deeply engraved upon his face. The "wound" is somehow related to his mother, Mizuho...