Wow! Looks like your putting in a lot of work for this. The art is very well drawn and the story and world sound like they will be, and have been fleshed out and developed fully.
Only problem I have is that, in the demo animation, the H scene looked like a slideshow whereas most games have smoother animation. That doesn't really matter to me though, I'd be perfectly fine playing this game even without an H scenes, it sounds fantastic.
And finally, thanks for making this free! Again, this looks like a lot of work and that it's going to be much larger and more entertaining than most free Hentai games.
By the way, when will the game be released?