In Nova City, memory is a commodity that can be bought and sold. The elites buy success, and the forgotten ones sell the past. Lin Chen is a top ectoplasmic tuner, and his job is to repair and edit people's memories, until that day, the arrival of a little girl brings an impossible problem - she forgot "blue".
It's not color blindness, it's not cognitive impairment, it's the concept of "blue" that is being quietly erased from the collective consciousness of the entire world.
A program called "Void Virus" is eroding reality. The next target it wants to delete is "Hope" and ultimately "Love". Under the guidance of KAI, a mysterious woman who only exists in the sea of data, Lin Chen was forced to embark on a desperate path against the world's dominant "Yongyi Group".
In order to save the cognitive world that is about to collapse, he must retrieve his dusty past and face the former mentor who created all of this. And the ultimate price may be to sacrifice the most precious emotion that makes him human.
When the sky is no longer blue, when hope turns into nothingness, what is left for you?
