User blog comment:B214/Talk About What You Want! 3/@comment-24098614-20150215043025/@comment-24502975-20150216234658

^It's still a Rating Game. They can't just run off unless they forfeit the match. And based on how they looked at the end of volume 19, I doubt they could survive without their immortality intact. Even if Belial left them to die, it might have been too late. We don't know.

Either way, Ravel and Raiser, even if they are killed by Belial, will not be dead permanently. After all, they do have a piece of the real Holy Grail specifically for a situation like that (death in the war against Qlippoth).