Shapeshifter

Shapeshifters are known to not exist but what if there is.

A girl with the power to shapeshifted into anything and anybody she wants but does not use that power because if anyone knows that she is one, she'll be killed just like her mother

It's been known in the family that only the females can shapeshift but what if a said skeleton falls in love with another and tells her friends about her ability and what she is