I thought you meant not your- yours and/or Goro's- pet cat, but that it still could be someone else's cat...

[Nana could have had a familiar. He looks over at Yuya.]

Anyway! "This is the place"? Do you think it's Kano's map!? But no, because we already knew that he wanted to move down there, so why would we have a map telling us that!? It has to have some other hidden meaning!