Free Collars Kingdom is a fun little series that doesn't get a lot of respect, mostly because it doesn't really have much of a story. However, what it does have is charm, excellent artwork, and cute characters. For fans of cat-eared characters (such as myself), this is a nice addition to your manga collection. I mean, where else can you find a Scottish fold catgirl? And the series only spans 3 (thick) volumes to boot. New-to-otaku-culture manga fans or the casual reader may feel a bit confused at the in-jokes, but Del Rey as usual dedicates a few pages in the back of the volume to explain them. I truly wish I could have given this book a five star review considering the likability of the characters, but the story really doesn't go anywhere. It's a shame since Fujima's character designs are really gorgeous. I found myself wishing this series had received better treatment by the author, as I think if it had been given a real story and slightly less fan pandering, it could have been a real gem.
In short: this is pure fun for fans of kemonomimi, but most people will probably be content to spend their money elsewhere.
(The reviewer was compensated for posting this review. However, the opinion stated in the review is that of the reviewer and the reviewer alone. Further, the reviewer independently selected this product to review and has no affiliation with the product maker/distributor, Amazon or the review requester.)