Zheng Yi’s electronic devices keep receiving eerie messages from an “Observer,” along with tasks such as [Today's observation task: Record Target A's microexpression when coffee spills (Reward: 10 points)]. He has used points to exchange for money, good health, and even a one-time “misfortune transfer.” But as he becomes more deeply hooked, he discovers that the Observer is issuing increasingly tempting rewards for tasks involving other people’s privacy, suffering, and even danger. He must decide: keep being a captive “observation terminal,” or use the rules to turn the tables and find out who the Observer is?