Currently reading a manga titled Usagi Drop by Unita Yumi.
It's really nice and sweet.
Contrary to popular believe, I don't only read Yaoi.
This happens to be about a 30 year old man, Daikichi, who takes in a 6 year old girl, Rin, who happens to be his grandfather's illegitimate child. He did it because he was sick of the olds' attitude towards her (concerned about what people would think) without thinking about her feelings.
It's so sweet.

As to why it's called Usagi Drop, I'm not sure.
But I only downloaded it because it had USAGI (rabbit) in it.