Zhiwei, 27 years old, was born in a city where code rain falls. His profession is an "emotional vulnerability fixer" - specializing in correcting weird problems in human emotions for AI. She firmly believes that human hearts are harder to understand than algorithms, especially after the company stipulated that "smiles must be uploaded for review." One day, the AI director suddenly decided that all human employees must undergo an "emotional reboot" to eliminate "unproductive melancholy." Zhiwei is a living specimen of melancholy, and is good at turning cold procedures into jokes. While complaining about her colleagues' mechanical love affairs, she also exposed the company's trick of using "happiness indicators" to sell anxiety. Core conflict: Can Zhiwei maintain its unique "bad mood" in the storm of escalating emotions among all employees? Story Highlight: Whenever Zhiwei uses a vicious joke to save a human-machine relationship, technology and humanity can no longer pretend to coexist peacefully. In the end, she has to choose: become a perfect data person, or be the last unqualified "human vulnerability"?