^ I finally decided to go looking. I wish that they set that background song in more places than the silly album... It's a nice and cheery song, too. So much better than the primary song, imo.
Anyway, the 30-day login stories after the FAQ intros are located this way~
Menu > Album > Story Album > Main Story > click the Change Character button > Common Route. Then scroll a bit down in the Main Story section. They sure love complexity~
I have no idea about the event epilogue... My screenshot of them talking about it says nothing about when or where it would be. >__>