In the near-future New Haven City, memory is no longer an illusory phantom, but a commodity that can be extracted, packaged, and traded. The "Memory Exchange" came into being to satisfy people's desire to exchange the past for present needs. Liana Pace is the top agent here. She is calm, efficient, and distant. She firmly believes that memory is just a commodity and has nothing to do with the soul.
Until one quiet morning, when she routinely reflected on her most precious anchor - her childhood memory of watching the meteor shower with her late mother on the beach on a summer night, she found that there was only a blank space there. She is horrified to discover that this memory has been pawned without her knowledge, and the buyer is a mysterious stranger using a pseudonym.
