(A nice little thing for a short Hetalia story I'm doing by the same name. It'll be up soon. Also, you are free to call this AU 'Herotalia' -u- )
Arthur has powers. But, for any god's sake, don't tell anyone. He has enough shit as it is.

Everyone in the 'hidden' hero/villain community knows, and, because his powers are quite strong, they are forever bugging him to join their side.
First, there's that bastard Ludwig, the Iron Fist, and his a-little-too-cheerful second in command, Feli, the Silver Thumb, who are always trying to get him to join the evil side.

Next, there's those three dumbasses that can't choose, the 'anti-heroes.' Allen, Oliver, and Matt, who are all in agreement that superheroes names are fucking stupid(Arthur would have to agree), are always quite insistent on their offer of being on the team that both gets to save people /and/ kill shit.

And of course, there's annoyingly that annoyingly handsome Hero of America and his cronies, the heroes, who are determined to keep their hero and normal life separate, who want him to join the good side.

Arthur doesn't want to join any side.
He just wants to be left alone. Maybe he's just being selfish, but he doesn't want to help out humanity. Humanity already has enough heroes anyway.

The only one he can confide to is his best friend, Alfred, who, yes, he does wish was more. But Al wasn't gay, he would think, so he always pushed those thoughts aside. Alfred is the only human, the only non-hero, he has ever revealed his powers to. Alfred's the only one that likes him and his powers, rather than likes him /for/ his powers.

But the fight between good and evil goes on, and is getting more brutal with everyone getting tired of fighting. Even Alfred, considerate-about-his-friend Alfred, knows and tells him that Arthur needs to pick a side and end this.

And for god's sake, end it soon.