In the near future, "cognitive capital" will replace traditional currency as hard currency. Humans can be implanted with "brain field" chips to modularize memory, skills, and knowledge for storage, transactions, and even mortgages. Lu Chuan, a low-income young man, accidentally discovered that his brain had produced "cognitive dark matter" that could not be analyzed by a chip due to long-term non-systematic massive reading - a primitive, chaotic thinking form that contains subversive potential. This makes him a "pathogen" and "savior" in the eyes of all parties.