In Ethel City, a futuristic city shrouded by a huge dome, memories are commodities that can be traded, tampered with and erased. The joys, sorrows and joys of mankind, the rise and fall of history, are all controlled by the super enterprise "Memory Goddess Company".
Ling Chen, a humble memory filterer, deals with forgotten emotions and erased truths all day long. By chance, he glimpsed a "blue sun" that should not exist from a piece of discarded memory data. This tiny anomaly, like a key, opens a terrifying door to the true face of the world.
What followed was a ruthless pursuit and a desperate escape. In the city's underground undercurrent, he encounters the mysterious resistance organization "The Echoes." In order to regain his stolen childhood, and to respond to the sad call from deep within the mycelium network, Ling Chen must make a choice: continue to live in the stability built by lies, or plunge into a storm destined to overturn the entire world?
When the truth was peeled back layer by layer, he found that what he had to fight was far more than just a company that controlled memory, but also a cosmic secret related to the survival of mankind. And he himself is the center of this huge mystery.