The only reason i'm seeding this is because it took a while to find this on a private video on youtube...
The BD source here on nyaa seems to be dead already, so SEEEEED this one here.
About the en-sub... is in a thumblr fansub that don't like people upload his/her subs anywhere else. Just google it and u will find it.
THE IDOLM@STER SideM SP PASSION OF THE PASSION.mp4 (244.5 MiB)