Thirty thousand years in the future, humanity has been reduced to the robots’ slaves, mere possessions under their control. When humans turn sixteen, they are sent to the planet Avignon, where they must complete a coming-of-age ceremony pledging loyalty to the robots. This has gone on for more than twenty thousand years. Today, the Yibin, bound for Avignon, explodes. Only Wuhen and Tianxing survive. They discover that the explosion was part of a robot conspiracy. If they want to stay alive, they will have to fight the robots to the bitter end...