Zhuān shǔ xiǎo bàwáng

From Chinatown KM:
Kaka is a mouse, who hoped to see the outside world one day. One day, she accidentally strayed into the wrong territory and ended up being banished with Quoquo (another mouse) by their owners. There are a lot of monsters in the outside world, so will they ever be able to find a new home?

Volume also contains a few oneshots by this author.