The Black Wolf (Welcome Back, Kestrel)

Once upon a time, this girl was named Ophelia and lived in my house.  Now she's back, and her name is Kestrel.  Ophelia didn't really have a backstory for the brief period that she was here, but Kestrel definitely has a backstory.  She is sisters with Sunny and Sara, and she is the Black Wolf, a werewolf with fur as black as midnight.  She's the eldest sister, and therefore looks after her younger ones, especially in the face with their war with the were-bears.  There may be more of the wolves, who also have their grandmother to protect them, but the power of the bears can't be denied.