In chapter 60, before Raboniel is presented with the 'gift' of Lift, she is given a pouch with something that clinked (so presumably metal). She seems to think the contents of this pouch are very valuable. Was it ever revealed what the pouch contained? I cannot think of it off the top of my head, but maybe I am forgetting something? My best guess is that it is raysium, but I don't know for sure.