He does not remember who he is, don't know why here. He wanted to came home to find lost memories, but weak. Accompanied him to find the way home only a map, a group of mercenaries and an unknown journey.
Journey will encounter all sorts of different terrain, each has its own characteristics, the advantages of using various terrain, avoid interference can be better to move forward.
Islands in the sky changes all the time,each time to see the scenery is unique, but it seems that there are certain rules in the change, and more try a few times there will be surprises.
Before the game look at the help documentation, help you speed up the understanding of the world.