In the future Xinhai City, technology can extract the memories of the deceased before their death into a precious data stream called "memory quality". This gave birth to a profession that walks on the edge of law and morality - memory collectors.
The protagonist **Ling Chen** is the top memory picker in Xinhai City. He is calm and precise, able to extract the truth that clients need from the most chaotic memories. He uses this as a livelihood and as a shackles, trying to retrieve a key memory of his that has been erased.
A seemingly ordinary commission involved Ling Chen into an unprecedented storm. From the memory of a technology giant, he accidentally came across a piece of crazy information that did not belong to humans and pointed to the ultimate mystery of the universe - "Singularity Zero."
This memory fragment is like a key and a curse. Not only did it make Ling Chen the number one target of the "Yongsheng Group", a giant enterprise that controls future technology, it also left an indelible "echo" in his mind, allowing him to often glimpse the illusion of the birth and destruction of the universe.
In order to survive, and to uncover the secrets of his life experience and the "Singularity Zero", Ling Chen was forced to embark on the road of escape. He must piece together the truth through thrilling memory retrieval and information deciphering. However, he gradually discovers that what he is pursuing may not just be a memory, but the ultimate answer that can subvert human civilization and even redefine "existence" itself. And he himself seems to have been part of this huge mystery from the beginning.
