[Suzerain of Sheol]

The "shredder" guy is actually Nightmare. Theory is that it's possessing Sophitia now.

Also, see the girl top row, second from the right? Her name's Viola, but she has amnesia and she has the same voice actress as Amy. Only... she doesn't fight with a rapier, but with a claw. I know, I'll be annoyed if Amy's gone, too, she's my main.