Old news video, but a good recollection of all screenshots available of Episode 7.
Obviously, do -not- watch it unless you are done with Episode 6 (and no, even if it is in japanese, it might spoil a plenty).
http://www.nicovideo.jp/watch/sm11285384
The peculiar point why I'm posting it is... unless someone is really an excellent copycat, it seems it is one of dai's tracks.
This track is called "why you are", but still, I've yet to find any location where it was initially available (no, it isn't one of the unused track of Music Box blue, it is neither on dai's site newest news nor on the new music box).
In any case, "why you are" is quite excellent, perhaps the best "hope" remix I have ever heard for the moment.
Also, an hilarous doujin drama (the same group that has done Episode 5, and ongoing with Episode 6), regarding Zepar and Furfur Gender
http://www.nicovideo.jp/watch/sm11166037