The demo is just too short to give any kind of an idea as to what this game will ultimately be like.
You have a lot of pictures posted above, and NONE of them appear in the demo. No sex scene to see what those will look like. It's just too little content to entice a donation.
The art is pretty. The writing is well done. But it's like 40 minutes or less worth of reading. With no idea which direction it will take.
I wish you luck on the Kickstarter, but I'm out until there is a finished product for sale.