Never noticed we didn't have a thread for the manga!
If you don't know it yet, I've written a review for it.
It's being currently published on the Young Animal magazine, and we're about to get the 7th volume. It seems the only scanlation group that works on it is Scumscans, and sadly we don't get public raws for it.
For info on the OVA series and live-action movie, go to this thread.
So well, if there's someone else interested, discuss away!