The art is beautiful, the music is entrancing, the atmosphere overall is mystical and magical, and I'm effectively hooked. Good start! I'll go check out Chapter 2 now. Didn't know is was out already)
UPD: Aww, the plot thickens! And I like the characters more and more (except August, of course). I have a good feeling about some of them - a particularly good feeling. I also hope that pursuing someone won't lock you out of interacting with other characters too much. I'd rather like to have friends as well as RO's.
Note: There is something weird going on with Omen's art. His sprite is wastly different from the CG's (the sprite's chin seems too big in comparison), and the CG's portray him just as differently (actually, when I saw him in Ch2, I thought for a second that is was his twin sister in the doorway due to eye and brow shape XD). It's like he can't decide what he wants to look like.