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.)