I believe both Doga and Unne give you the lowdown of the story, I think you also hear it from the moogles at Doga's house or the small magic village founded by Doga.

One thing that is mentioned in the DS version that may be new, is that Unne implies that when the world is frozen in time, that Xande himself is as well. In other words, only monsters of darkness may be walking around in the frozen world of darkness. That also just adds a bit to his character for me cause it seems pretty hardcore to freeze time so you don't die but not to be able to enjoy it in itself.