you live in a world where everyone has wings, some even tails or other animal features. The wings resemble different element. Water, wind, ice, fire, earth, thunder, light, shadows and more. A normal human gets them with the age of 10-16. You were 19 and still didn't had your wings. Most believed you'll never get them, other think that you're just a really late bloomer (start wherever you like or I can give you a plot)