Pani is a snake-tailed opposum. No one knows where they are from, and they have been taken care of by a researcher.
The snake was given the name "Bread" by her opossum sister, since she likes to play pranks.
"Bread" worries about her sister since there are times when Pani would get into trouble

Notes:
Despite having fangs, a bite from Bread isn't much of a threat and would be more of an irritation than anything bad.
Also, Bread doesn't eat anything; Pani pretty much does it for them both.
Like Pani, Bread does have black hair
When one sleeps, the other stays awake... if it can be helped
And yes, their name is practically the same. (As mentioned, Pani likes to play pranks)
Their design doesn't stray far from their concept sketch