Gozer the Cat

leave the original names of the cats: traditional, respects what the cats came in as and wishes for none of em to ever change their beautiful cat ways

Gives new nicknames: adventurous, enjoys having a deeper connection with the cats by giving them a name only they call the cats by. Cat lover through and through:

Renames them their Japanese names: cat loving weeaboo, pure and puts the original canon above all else. Holds cats in highest regard.

Plays in the original Japanese while keeping the default names: is trying to learn Japanese in a loving cat environment. It is very weebish, but they're having fun (or they just have the original version and are a veteran neko atsume fan, they should be well respected)