I'm gonna be honest, I'm too broke to afford the game at the moment, and the fact that the demo is censored is turning me away from this game entirely.
One night, a bat girl shows up at your window. You decide what happens next. · By
To quote the game page:
I'd love to release my entire game for free, of course, but I'm not in the financial position to do that unfortunately.
The censorship is there to encourage you to purchase the full version while still allowing you to experience the entire game's story for free. The only things you are missing out on by playing the free version are Nude Mode, the gallery, and some unpixellated genitals.
For a $5 game, I think that's fair.