Responses
I don't think the members know what happened. You can see that the grey spiky hair guy is only just now figuring out that Jaeyoung's condition has something to do with Jun.
the kids didn't know, only the red haired hyung, they told yoosung in the last chapter of season 1
Well if the members knew what jun did to jae why there's ones who still in contact with him? do they just forget or maybe don't care?
ATP I just want that group to stay away from jae, he's the only one suffering...