After the paranormal descended, the world gained a new set of ironclad rules. For example, never look back at night. Never answer a door that knocks for the fourth time.
And Jiang Cheng is an ironclad rule in human form.
He barely survived an S-rank incident codenamed "Silence," but became the human vessel for an "unspeakable" rule. Since then, the area around him has been enveloped in absolute silence. Any sound made deliberately triggers a deadly curse.
He is humanity's strongest weapon, and its most dangerous forbidden zone. The organization sends him to deal with other troublesome paranormal threats, using one rule to override another. But after each descent into increasingly insane incidents, Jiang Cheng realizes that the "Silence" inside him is growing. Its reach is expanding, from ten meters to a hundred, then to an entire city... He doesn't know whether, when the whole world falls silent, he will still be human.