Lin Lu, a psychological counselor, is framed by her ex-boyfriend and a friend working together. Overnight, her reputation is ruined, and she becomes a laughingstock online.
At the lowest point in her life, Lin Lu accidentally discovers the secret of this world. It turns out that two sets of numbers float above everyone's head, and humanity has been controlled by a System for five thousand years.
People's fates can be changed at will through probability. Everyone's luck, relationships, and hardships are all arranged by the System, while humanity is nothing more than a tool for collecting emotions.
Lin Lu is the only flaw to appear since the System's creation. She has a special ability that lets her change the probability of events.
When her ex-boyfriend makes excuses, Lin Lu raises the probability that he will humiliate himself in public. When someone puts on an act in front of her, she can make their true face show. Even when the System tries to erase her, Lin Lu can survive life-or-death situations by changing probabilities.
Lin Lu takes revenge on those who betrayed her and exposes the secrets of her industry. She begins fighting back, sabotaging the facilities the System uses to collect emotions, exposing celebrity scams, and establishing a free base beyond its control.
Just then, a mysterious man named Qin Yuan appears. He can ignore the System's rules and break free of data's control. He has been searching for Lin Lu for ten years, hoping they can join forces to fight the System.
Lin Lu changes probabilities; Qin Yuan ignores the rules.
Starting out as two lone fighters, they gradually awaken more and more people. In the end, Lin Lu and Qin Yuan overthrow the System's rule and put an end to every means it uses to control humanity.
All Lin Lu and Qin Yuan want is to break free of their assigned paths and live as their true selves.
