Getting into the brothel was the easy part since all we had to do was flash some money, and our clothes were of a high enough quality as to not make us look like common folk, though in the end, I chalked it up to the fact that we were both of the third level. Zirani had taught us how to show only what we wanted to show. We kept our cores hidden but allowed our level to be visible. The level of aether infusion was tied to the body while the cores were all located in the same place.
The large and muscular man who let us in was dressed in an old-world suit and wore an odd white mask that had no feature save for the black circles around the eyes openings. He was of the second level and had a metal core which explained the chains warped around his arms. He probably didn't think I could sense them, but I did since there were of aether and not just normal mundane metal he'd bought from somewhere.