Granado Espada! It's F2P.
The awesome thing about it is that you can control up to 3 characters at any one time and there are lots of other cool functions like mercenary cards that can convert your character into a card which you can trade to other people. you can even recruit the NPCs that we meet along the way! There are a lot of other cool features, you can read more on the website.
The graphics are freaking beautiful and set in Baroque era so all the costumes and architecture are detailed, intricate and gorgeous. The OST is amazing too! its the only game that i don't turn off the music.
it's like console gaming and pc gaming rolled into one. Definitely the best MMORPG i have ever played.