The Wings Upon Her Back by Samantha Mills
Five gods lie mysteriously sleeping above the city of Radezhda. Five gods who once bestowed great technologies and wisdom, each inspiring the devotion of their own sect. When the gods turned away from humanity, their followers built towers to the heavens to find out why. But when no answer was given, the collective grief of the sects turned to desperation, and eventually to war.
Zenya was a teenager when she ran away from home to join the mechanically modified warrior sect. She was determined to earn mechanized wings and protect the people and city she loved. Under the strict tutelage ...