After transmigrating into the world of Detective Conan, he becomes a blue-and-white British Shorthair. He thinks that if he finds a good family, he can live out his days as an ordinary cat in peace. Then one day, he gets caught in a door. He stares at the smug mouse Tom and freezes. "Damn, Jerry's still chasing me!"
Aoko Nakamori: Tom, I've taken care of you since you were little, but I don't know why you only ever keep your eyes on that one mouse named Jerry.
Conan: Why can a house cat do more things than I can?
Kaito: Tom nearly demolished the house with that mouse again!
Tom really is an adorable little kitty. This is just a bit of personal imagination, and a way to reminisce about the good old days.