Nori Tama(2009)

Nori Tama

On her way home from the grocery store, Norie notices a cat girl huddled on the ground. It turns out she's a Nekomata called Tama (a nekomata is a "ghost cat" with 2 tails), and she seems to be ill. Norie takes her in and attempts to care for her, despite her own financial troubles.

(Source: MangaHelpers)