I would totally play a game like this, but the demo is way too short and uneventful to judge the future project. Music is nice, the concept is great, art is great - it's funny how both Tobias and Millicent disliked how the children's hospital looks, while the screenshot of it was the first thing to catch my eye on this page. The writing is also nice, although a bit... much at times ("undelight"? "peaceable"?)
Overall, though, your game's page seems a bit abandoned, which is a pity - I wish this game does get made one of these days.