User blog comment:General tiu/FIFA 2010/@comment-1271618-20100611170138

It seems like that artist is fond of using an OC design similar to Lo_wah's North Korea, though hers is popular enough that it's become headcanon for quite a few, what with his long braid and the opposite-side curl. She has an account there too, so that probably helps.

I see DPRK as being a boy and the reverse sort of personality/image like Himaruya said, but if they were a girl they'd also be more of a reverse. I noticed that in one design sheet (old) of South Korea, there was a little doodle suggesting that his curl is meant to be shaped like one half of the taegukgi. So I guess his Northern sibling/half would have the other part.