In Eternal City, which is completely divided by light and darkness, memories and emotions are commodities that can be extracted, solidified, and traded.
In the morning and evening line, Ling Su, a memory restorer who has lost his memory, makes a living by interpreting and repairing broken "mental crystals". His greatest hope is to find his blank past. However, an ordinary restoration commission implanted a terrifying memory from a hellish laboratory that belonged to no one into his mind.
Overnight, he went from an unnoticed restorer to the number one target of the technology giant "Yuanyi Group". The cold-blooded hunter, the mysterious queen of the eternal night black market, the idealistic resistance organization... All forces involved him in the center of the whirlpool with their own purposes.
In order to survive and better understand his connection with that implanted memory, Ling Su was forced to embark on a dangerous path against the entire world. He must sneak into the neon-lit city of sin, find allies among lies and betrayals, and piece together the inhumane truth behind the "mind crystal" technology in deadly confrontations.
When memories can be tampered with and emotions taken away, who is he? When pain is defined as sin and happiness becomes a tool of domination, where is the value of human nature?
He thought he was looking for the past, but found that he was the only key to ending this era. And among the embers of forgotten memories, will it be hope or destruction that burns?
