At first I thought this would be something like maplestory, but after playing it it was completely different. The 3d is pretty detailed and the 2d is anime styled which made me like it more. It's free. (But like most free MMORPG's it has a cash shop, but it's only for pets, special equipment, camp items and fashion, which besides pets and SE, don't do much on stats.)
You get to pick between the two genders and four classes: Power, Magic, Sense, Charm. Get this though, the male and female of each class have different edges to them. Like the charm type, the females do more damage when they land a critical hit, but males get more damage with projectiles than females do.
They also have an interesting card battle system. You can get cards many ways. Earn them in battle by beating the respective monster that holds thier card, trade em, buy, earn them by winning card battles.
If you see a Racoon named Blunt he'll be happy how to teach you to card battle. (If you can't tell who that is, I'll chew you out. Green hair.) And if you looking for a challenge face a Scarlet Ace guild member.
They have guilds and guild battles are coming soon. Pvp is available.
Overall I say try it, it's pretty cool. Buy you should go through the tutorial every time lest you be left without begginers equipment.
http://www.tricksteronline.com/