MapleStory knows this, which is why their latest class strips away pretensions and plays it like it is. Dual blades are a subset of the thief class, specializing in melee weapons to lay down a double-whammy on the bad guys. The new class also comes with an interactive backstory, as they're accepted into an organization of secret thieves (as if thieves advertise) who are out for revenge against the Dark Lord. With a name like Dark Lord, you know he isn't just selling Girl Scout cookies, so he probably deserves what's heading his way.
Nexon's set up a special site for the new class that includes a trailer, three contests for impressive prizes, and a handful of dual blade wallpaper downloads to spiffy up your desktop. You can check out all of MapleStory's double-wielding action here.