Lu Yi was involved in this cognitive war due to the transplantation of a mysterious prosthetic eye. His ability was fueled by creating logical paradoxes, but he had to pay a painful price of forgetting the concept of the body and reversing the flow of memory. When residents walking backward appear throughout the city, when the dying spit out gold coins that can be exchanged for life span, and when the "right to define love" is clearly priced in the underground auction house, he gradually discovers that he is just the "white blood cell" of the city's immune system.
