it was like a yamibou ova to me haha. it was very nice to see the characters of my favourite yuri series again and to listen to it's amazingly beautiful soundtrack ^^
this episode ended beautifully, the grown up Nene quoting Hazuki from what Hazuki told her when she was little.
I've seen a few episodes of Yami, so I thought this was a pretty cool episode. And, no, the past Momoka is the one with the white hair, she was standing with her sisters as past Touka killed everyone. I believe they somehow defeated him. I'm not sure, though.