This is one of the many "cute" anime-style MMORPGs that are currently on the market. I'm not quite sure how the story goes but it has to deal with the world recovering from some kind of war and for some reason, everyone is a kid o.O. Nevertheless, however, it has a game system that is similar to World of Warcraft and is well-worth the play for those who can stand the graphics. For some people, however, it can be "too cute". Luna Online is free-to-play-forever from gPotato, so look it up!
I play on the Eclipse Server most commonly as LisaChant (Warrior) or Nebachanezzer (Mage)