It's not all that interesting, really. "What...? Finally time to feed?" or something along those lines. Seriously, Azrael really does speak like a madman...
Nah, that's probably a fail from the game itself. That screenshot already has Noel outside of the Librarium--she mentions that she's not a Lieutenant anymore. And the screenshot that follows seems to continue the conversation, too.
Apparently Terumi is a Pre-Order DLC character for the console version? Also, Kagura is voiced by the fabulous Keiji Fujiwara. I think it's only a matter of time until they announce Kokonoe as playable.