Nekobaa

is an old woman who lives in an abandoned city together with her granddaughter Tamaki. She lives with lots of cats, including talking ones (probably summons), like Denka and Hina.

Sasuke's Revenge
Sasuke Uchiha comes to her shop and pays off the debts she owes to the Uchiha family. She tells Sasuke she remembers how Itachi and he where once 'little kittens' and that she can't believe they want to kill each other now.