It's FlyFF, a cash shop mmo. I think it's mandarin or something, but it's been ported to US. You can tell cause the engrish in it is pretty shotty at best. It's free to play, but there's a cash shop that has most everything everyone wants, which results in an in-game economy that is.... pretty wacky. Expect a mindless grind that slows down.... and then slows down some more... and nearly stops but not quite.