In 2045, a technology called "Memory Crystal" has a global monopoly - humans can extract and trade memories. The privacy of celebrities, the memories of the deceased, and even fake "happiness" are circulating on the black market.
The protagonist Song Mi is the most dangerous "memory auctioneer" in the underground market, specializing in handling shady memories for clients. He is naturally immune to the side effects of memory crystals (memory retrieval can cause mental breakdown in ordinary people), but he was involved in a conspiracy due to a commission:
A rich man purchased a war memory that was supposed to be destroyed by the military, which contained map coordinates that could subvert the regime. What ensues is a hunt, memory tampering, and an escape that spans reality and virtuality.