This was a sweet prologue. I'm quite a big fan of romance mixed in with mystery, and this hits the spot for me quite nicely. The introduction had a nice story-tale-like quality to it, reminiscent of Wind Waker's intro. I also like seeing the two main characters grow up near the beginning, it really sells that they're childhood friends. Both the romance and the mystery parts were developed nicely. The chemistry between the two is quite cute. I like the art, although it's unfortunate that there are no alternative expressions for the sprites. Roberto's feet also don't appear when he flies, which is a little awkward. Not much to say, I enjoyed reading this one, and I'm looking forward to the continuation.