Netherworld Exchange, The Helping Hand of An Enemy?

'Interesting... This Spirit Voucher acts as a form of currency for the Netherworld Exchange. I wonder what kind of items I'll be able to exchange for it. Since it was a reward for an S-ranked quest, the items shouldn't be too bad.'

Izroth located the Netherworld Exchange in his system interface. It was a symbol in the shape of a strange purple crest with three black lines running across its surface area. Lurking behind the three black lines was the image of an unusual beast with the head of a roc and the body of a biped land dragon. Without wasting any time, Izroth touched the purple crest as a sizable viewing screen appeared in front of him.