When bugs become fate, Lin Yin holds the "causal compiler" and has a glimpse of the underlying logic of the world. An "accidental" repair of an elderly person in a nursing home unexpectedly revealed the fate code he wrote three years ago. The mysterious disappearance of his mentor, the chain disaster caused by the delay of inheritance, the cold "Blue Spot Warning" of the system... He must use recursive thinking to debug reality layer by layer, find out the black hand who tampered with the way of heaven amidst the emotional fetters and logical traps, and repair the web of fate torn apart by the code. The ethics of science and technology and the paradox of fate confront each other here. What he cultivates is not only the system, but also the human heart and cause and effect.
