I enjoyed this VN. Besides the missing voices which was mentioned in the update, why does the Extras option go to Preferences?

It is criminal that is only $0.00 and there's not even a "Name your own price" option. This was an incredible effort for only a month's work (and helps I got the Super Good End on the first run). I'll be "buying" My Girlfriend is a Demon for extra to make up for this.

I got most of the endings, but I'm missing 5 and 10.