This was really fun. As someone who is both a creative and who has performed exorcisms in my day, I'm surprised I've never thought of that pun! The music was great, and the idea was really quite interesting. My major gripe is that, firstly, there is not enough time to read any of the book on the first day and still meet your quota, and secondly... well, there's just no way I could reach the quota. My max average score per day was 5.
This would be a really nifty VR game, by the way.