You are just an ordinary 18 year old human girl. You have white skin, dark hair, are 174cm tall and you always do the same old boring stuff, wake up go to school, do your homework, eat and sleep, go to the bathroom if you needed to, go to the doctor if needed and all that other stuff but eventually all of that is about to change. You will leave your ordinary life and begin life anew as something else.
You don't know it yet but your changes are coming unto you because of what constellation you were born on, many people were born under constellations, but you seem to be a special case, no one else is going to transform, only you will.
You know a lot of Constellations and that they make pictures depending on the alignment of stars, but what you didn't know is that being born under certain ones can turn you into whatever species the constellation represents, for example Vulpecula will turn you into a Fox, Delphinus, a Porpoise, Aquila an Eagle, Camelopardus a Giraffe and etc.