Lucian was taken back by the offer from Ren, he didn't expect to get something from nothing from him, from his powers according to what Saito said, yes, but Ren, nope. "Are you sure?" there was no lack of gratitude in Lucians speech, this would give him a chance to take leaps and bounds in his plans, "Thank you Ren." he looked at the pile of all the bits and pieces Ren had picked up and was offering, it clearly took a while of grinding to get all of those, as the monsters didn't always drop the goods. This wasn't a small thing. 

He looked at Saito, then posed his question, "Do you have any books on nature then? or spirits? or what do you have even that we could learn from?" Lucian's knowledge on magic was scarce, so he wasn't too sure of what different subtypes there was, but he knew that the magic that demons use wasn't exactly his forte.

He then started to speak again, "Also, would it be easier if we just trade through you then since you seem to know some people already? It helps us out by getting past us looking for connections, and you can profit from it as well, what do you say?"