JADE CITY by Fonda Lee

A review over at Tor.com:

Stylistically, Jade City feels as though it mixes The Legend of Korra with Gangs of New York and a generous helping of Hong Kong action cinema. Lee builds a vivid, densely believable world, and a vivid, densely believable city: Kekon’s cars and televisions, its economic boom and history of conflict, exist in productive tension with its traditions and its clans, its jade and the code known as aisho, its gambling dens and restaurants and boardrooms. A deep attention to detail gives us a view of a society—and people within that society—not all quite yet at home with the changes that have occurred.