Then that's what I'm thinking of. They use their own power, right? I wouldn't want to be called a wizard though.

So there is a catch to your immortality. Hn, there's always a catch.

Maybe. It was something Lilia had us all do. We called on a power she said was within all of us - the power of hope. I know it might sound kind of stupid, but it saved us from dying in the Lord of the Black Abyss's Shadow World. So there must be something to it. I guess there was a sort of faith involved in that.