Err, so far, I know about four studios.
There's Haroomin Studio
, CoEm Studio
(Press "☆Studio 배경" from the side menu under "코엠 (P&D) Studio" for more backgrounds), Don Studio
(Click the places where it says A룸 or C룸 (B Room is closed)) and Velvet Rose Dress Cafe
As for Cospeace, it's a new group, about an year old (I think...
) and their events are kinda sporadic. Think they have one this week or the next, but not sure about the specifics on where and exactly when.
If you know about Cosamo, do you have a Naver account?
It helps if you do...