Neko Machi
English name: Cat City
Genres: Fantasy, Horror
Type: OVA, Episodes: 1
Aired: Aug 1, 2006
Studio: Toei Video
Source: Unknown
Rating: PG-13 - Teens 13 or older
Synopsis:
A fantasy world with only cats as far as the eye can see. The awe and fear a person can feel in a world that doesn’t know mankind, the world of Cat City invented by HAGIWARA Sakutaro, is depicted with sense by the art of KANAIDA Etsuko. The commercial editor URAHAMA Shojiro edits the story narrated by the musician and poet MACHIDA Kou with a taste of fantastic for this new Ga-nime. 

(Source: Toei-anim.co.jp)