The Wanderer had no choice but to have a deal offered by the Devil. He needed to secure the Prey as well as bond with Queue. It's a risky deal, the Devil had told him that any mistakes would result him being expelled from the Guild and face forever in exile.
Yes, you guessed that right. I am the Wanderer.
The university is the Grey Palace.
Now, keep on guessing the rest.
PS: The Devil has nothing to do with any religious element. It's just a metaphor.