You're a yokai, specifically a domestic nekomata. Not surprisingly, there were a lot of exorcists hanging around you all the time, once your former owners announced the oddities in the house. But many of the "exorcists" were helpless or simply didn't see you as a danger, so you never bothered about it. You decided to get rid of your former masters so you could take over the house and continue pretending to be a normal person. Everything had been smooth sailing up until that point.

You hear a knock on your door, and upon opening it, you see a strange man. He looked extremely calm, but at the same time his appearance was surprising and unusual.

A pharmaceutical salesman. Need anything?