Sierra is a member of the Diamond rocks. She is called the Fox girl because she loves foxes and other forest creatures. She gets average grade in school and usually advance studies.

Her powers are Flight, White magic and she can talk to animals. Her special is "Diamond Fox Bite".

She loves hanging out with her friends which is the Diamond Rocks. Her best friend is Slick. She loves staying at the forest when she is stress and she also loves taking to the animals in the forest.