This series follows the adventures of Chii, a lost kitten taken in by a young couple with a toddler. While the family never intends to keep the kitten, Chii slowly claws herself a niche in their family, winning over everyone with her kitten idiocy and charm.

From Vertical:

From the author of the New York Times manga best seller Chi’s Sweet Home comes a delightful series of vignettes in the life of a kitten and her doting owner. To a young kitten, even the most mundane things appear fresh and exciting (and sometimes unpleasant or scary). Join FukuFuku on her journey and rediscover the world from a tiny cat’s point of view.

From The Cat Mummy's Page:

A story featuring the everyday life of a domestic cat owned by an old lady who runs a local provision shop. Very very funny, if you keep a cat, you identifies with everything the comic's trying to tell you.

Note: Volumes of the original edition are "numbered" according to the Iroha poem, rather than with actual numbers. (That is, い ろ は に ほ へ と ち り ぬ る を (i ro ha ni ho he to chi ri nu ru wo) instead of 1-12.)