At the scene of a series of murders in Linjiang City, the deceased were all performing twisted Nuo opera dance poses. Folklore consultant Shen Suzhou touched the strange objects left behind, and fragments of rules flooded into his mind. This was his "discrimination" ability, and he could spy on the rules contract three times a day. But the price is that the mind is invaded by Nuo God. What is even more desperate is that he is burdened with an immortal curse: after death, he was resurrected in the nearest Nuo altar, retaining all painful memories. The murderer Tuo Xuan used the "laws of speech", "laws of conduct" and "laws of stoppage" of ancient Nuo opera to create the perfect murder. When Tuo Xuan cursed him "no reincarnation", Shen Suzhou calmly analyzed the boundaries of the curse, took the initiative to die, and locked the loopholes in the rules before he was suffocated. After resurrecting, he set up a death trap in reverse, allowing the murderer to be counterattacked by his own rules. Every sacrifice brought him closer to the truth, but deep in the Nuo Abyss, every resurrection of his was feeding an ancient existence. He can exchange death for the truth, but he doesn't know that he is becoming a more terrifying rule itself.