In a dystopian future where emotions become a source of fatal pollution, "Scavenger" Li Jin is responsible for cleaning up disasters caused by out-of-control emotions. During a routine mission, he discovered that time-devouring nanomachines were crawling inside the victim's body. The "Ouroboros" symbol behind it actually had the same origin as the "Happy Plague" that killed his daughter five years ago. The authorities used "accidents" to cover up the truth and forced Li Jin, who discovered the clues, to be imprisoned in a medical dome. Li Jin suffers from a secret trauma - he can release a dark emotional energy that has the same origin as pollution, at the cost of burning his own nerves. When he was forced to remain silent, he received key information: the source of the disaster, "Polluted Source Zero," really existed, and the ruling body, the "Council," had been infiltrated by "Ouroboros." In order to uncover the truth behind the tragic death of his wife and daughter, Li Jin must break free from the shackles, unite his remaining comrades, and sneak into the darkest bottom of the city. He will use his spirit on the verge of collapse as a weapon to fight against the technological giants that can turn human emotions into weapons. On the edge of sanity and madness, he will tear open this dome of hypocrisy built with lies and brainwave suppressors.
