The Jupiter's side of the drama might has some interesting info there.
It starts off with Jupiter talking about how they felt after they left 961Pro, then bumping into Dramatic Stars. Both groups were asked to meet at the same location by the Producer and s/he was running late. Next, there's this awkward silence. Teru tries to start up a conversation (by talking about the weather), Tsubasa wanted to make tea for everyone, but Kaoru killed the mood instantly and it went back to this awkward silence.
Then, they introduced themselves to Jupiter and vice versa. They commented about each other. Tsubasa mentioned having an un-named little brother and Kaoru believes Jupiter is their senpai. (Now that you mention it, a lot of the SideM idols look up to Jupiter; for example, Nao wanting to be like Hokuto in the Pajamas Event, there were several of them who were influenced by Jupiter's performance on stage.)
It ends with Touma and Teru were getting worked up over something (I think it was a curry contest) and Tsubasa was like "Producer, please come back!"