Heals my soul?  I guess that Rennis_Tora is pretty on point with that comment.  I've been reading this ever since I discovered manga online about fifteen years ago (was reading a very few select viz translations from amazon.com before that).  I have pretty catholic (wide) taste in manga, in a variety of genres, but this is a real favourite.  The characters are fantastical (read "fantasy"), but they're real characters and not two dimensional stereotypes designed to fit a plot.  Our mangaka, Ike, is a royal genius who makes me want to move to the town Kurona lives in to spend my retirement getting involved in her antics.  As a cat lover, I really think of Kurona as one of my cats becoming anthropomorphic, as she acts in exactly how I imagine a cat suddenly becoming sentient and able to transform would act.  She has all the characteristics that I love about cats.  Not that I'm totally cat-centric, as I love the spider woman too, as well as the Inari from the Tamamo-chan manga.  It probably comes from having been read "The Wind in the Willows" by my father when I was a child.  He was a chemist, with a fascination for astronomy, archaeology, anthropology, geology, mathematics, and physics, but he always claimed that that was his favourite book.  I only wish that he had lived long enough for me to introduce him to Miyazawa Kenji and Niimi Nankichi.  Neko Musume Michikusa Nikki gives me the same feeling, and I am always overjoyed when a new chapter is brought out by our fearless and talented scanlators.