Finally, the trial version of the game has been released. Here's the list of mirrors.
Regarding the Vocal Mini Album, I listened to it yesterday, and it was good as expected, especially Kimi no mama de by Sakakibara Yui. She did a great job again.
One more thing, I forgot to mention that the 3rd page of the webcomic was out 5 days ago. Now we're 100% sure that Awayuki is a tsundere.