Packaged with any version of Ao no Kiseki that comes with the drama CD, you will find a postcard on the inside. The following images are of the postcard. The first is the one that has been posted on Andriasang. The second is a little bit more complete.
The second is another image of the game, drama CD, and postcard together.
The website, which is not active as of yet, will be http://www.zero-full.com. Strangely enough- this will be a Falcom title with its own, dedicated URL. This will be a first, from what I’ve seen.
I will keep you posted as I learn more on this.
The domain is active, but returning the error message:
You don’t have permission to access / on this server.
Apache/2.2.3 (CentOS) Server at www.zero-full.com Port 80
This means that the domain is live, but they have not unlocked access to the data on the website. :D