The story is based in China, in a place called Hak Nam.
Hak Nam is run by drug lords and is filled with brothels. Jin is trying to find her sister, while pretending to be a boy to stay safe and fly under the radar. Dai is trying to find a way out of Hak Nam and he needs Jins help. In return, he agrees to help Jin find her sister. Mei Yee is trapped in a brothel, forced into prostitution with no way out. Dai, Jin and Mei Yee narrate the story, each chapter is told through one of them.
The Walled City by Ryan Graudin (Little, Brown) Recommended by Christina at Blue Ridge Books Waynesville NC