Yay! I'll start by asking about the very first character I wondered about: Orena.
The first thing I wanted to know is if Orena is even real, or if the goddess is a myth. And if she WAS real, did she really create the river that runs through Burnea with tears of joy from hearing the first bird song? And if she WAS real, is she still around?
That very first little information tree made me wonder about the religion and god/desses of the land. Did you have a concrete idea of what was real and what wasn't?
Speaking of the information tree, I wanted to simply applaud your implementation. I love how I could click on important names and find out more, it pleases that very curious nature of mine, and it felt like my character thinking, instead of say, me looking something up in an index, taking me out of immersion.