The Lunar Chronicles

Cinder - Humans and androids crowd the raucous streets of New Beijing. A deadly plague ravages the population. From space, a ruthless Lunar people watch, waiting to make their move. No one knows that Earth’s fate hinges on one girl. . . . Cinder, a gifted mechanic, is a cyborg. Scarlet - Scarlet Benoit’s grandmother is missing. It turns out there are many things Scarlet doesn’t know about her grandmother and the grave danger she has lived in her whole life. Scarlet encounters Wolf, a street fighter who may have information as to her grandmother’s whereabouts, she has no choice but to trust him, though he clearly has a few dark secrets of his own. Cress - Cinder and Captain Thorne are fugitives on the run, now with Scarlet and Wolf in tow. Together, they're plotting to overthrow Queen Levana and her army. Their best hope lies with Cress, a girl imprisoned on a satellite since childhood who's only ever had her netscreens as company. Winter - Princess Winter is admired for her grace, kindness and beauty, despite the scars on her face. She's said to be even more breath-taking than her stepmother, Queen Levana... When Winter develops feelings for the handsome palace guard, Jacin, she fears the evil Queen will crush their romance before it has a chance to begin. Can Cinder, Scarlet, Cress, and Winter claim their happily ever afters by defeating Levana once and for all? -Goodreads.com