The story takes place in Neo-Arcadia, a typical cyberpunk city. The protagonist K is a "memory stalker" who uses technology to sneak into the brains of the deceased and extract residual memory information for profit. K encountered an unexpected situation when he was anonymously commissioned by the giant enterprise "Yuan Yi Group" to sneak into the brain of its late senior researcher Dr. Yaris Thorne in an attempt to steal a research data model.
He did not find traditional data, but found a huge, dead "black sun" that could swallow all memories in the ruins of Thorne's consciousness. When trying to download this weird spiritual imprint, Black Sun launched a counterattack and forcibly implanted a piece of unknown and contaminated data deep into K's consciousness. This incident was called "memetic pollution."
This failed operation made K the number one target of the Yuanyi Group, and was hunted down by the legendary "Scavenger" Silas sent by it. During his escape, K discovered that the "black sun" implanted in his brain was not a pure virus, but an entity that coexisted with him. It can provide K with incredible survival paths by calculating probability storms, helping him avoid fatal pursuit.
In order to seek answers and vitality, K followed the final guidance of his former middleman "messenger" and went to the "logical cemetery" at the bottom of the city-an abandoned AI data center to look for the legendary "consciousness tuner" Lao Ji.