In the future city "New Dome City", emotions are luxury goods that can be extracted and traded. Citizens rely on synthetic emotions distributed by the government to survive in numbness. A strange disease called "emotional exhaustion" is quietly spreading.
In order to pay for his sister's high treatment fees, the top "emotional submariner" Ling Su wandered on the edge of the law and dived into the vast "sea of heart" of human subconsciousness to salvage the remaining emotions. In an accident, he got a black crystal essence that he had never seen before-"Zero Resonance".
This forbidden object brought him endless pursuit by the Emotional Management Bureau, and also brought him the only hope to heal his sister.
Forced to flee, he joins forces with the mysterious intelligence dealer Fei to uncover the hidden truth step by step: the tranquility of this city is based on a shocking scam that deprives everyone of the right to feel love and pain.
When the cold order encounters the turbulent reality, when one person's struggle is enough to shake the whole world. Ling Su must make a choice: continue to be a numb cog, or ignite the fire called "humanity" that can start a prairie fire?