Nevaeh is Bella's younger sister and treats her as a best friend. She was only four when Bella was nearly killed. All she every wants to do is protect her from the man who haunted Bella's dreams for years. She was the unexpected child between Charlie and Renee and she hates being spoiled.
She was first known as Oswin Oswald and she was helped to realize that she was a Dalek thanks to the Doctor. She became a women called Clara who lived two lives and she saw the Doctor again when he came to the 1800's after losing his best friends, The Last Centurion and The Girl who waited (Rory and Amy Pond/Willaims). She should helped him to realize he can't travel alone and that pain wasn't necessarily his fault.
She is the daughter of Rose Tyler and The Meta-Crises Doctor and a Child of The Tardis. She was conceived and raised on the parallel TARDIS. She doesn't really know how she got to reality and she has regenerated almost one hundred times since she arrived.