Talk:Zoshoku Gimi X≒MULTIPLIES (増殖気味 X≒MULTIPLIES)/@comment-5532114-20130428133727

So apparently Yukari does some background vocals in one of the songs, either "day tripper", or "nice age". But you don't even hear her. I don't know if that's even worth noting.

As for Rin and Luka, I searched through the internet but I can't find how they are involved in this CD at all...