This is an endearing story of a small parrotfish who doesn't feel right in her fins. She goes on a journey to discover her true self, meeting all sorts of species along the way.

In thirteen-year-old Aster's family, all the girls are raised to be witches, while boys grow up to be shapeshifters. Anyone who dares cross those lines is exiled. Unfortunately for Aster, he still hasn't shifted...and he's still fascinated by witchery, no matter how forbidden it might be.