I'll leave this one to the actual encoders, cuz there's a bunch of hidden scenes that I don't wanna deal with.

The OVA looks fantastic by the by: http://i.imgur.com/tZMW7Oe.jpg

There are tons of spoilers though, so maybe don't watch if you aren't caught up on the manga.

Edit: This may help (guide that came with the blu-ray): http://i.imgur.com/AteMGwl.jpg