- An island near Tohoku in Japan that resembles the profile of a cat.
・The "Cat-loving Prefecture" is literally a prefecture where cats live.
It is also called Mubyojima (Dream Cat Island) because many cats live there.
While cats are the main inhabitants, various other creatures have also moved here.
Currently, humans cannot live there, but because of the existence of relationships, cars and daily necessities similar to those found in the human world exist.