The night Lu Jin burned the thirteenth corpse with his own hands, the fire in the archives swallowed up all the truth. Five years later, nameless corpses reappeared one after another, huddled in the incinerator in the same posture, and his signature emerged from the ashes. Night watchman Shen Zhao watched with cold eyes, while clerk Bai Wu secretly recorded that Qi Huai, the director of the funeral home, was weaving lies with ashes, while the forgotten scavenger Chen Ya was writing the next number with ashes. When Lu Jin's hallucinations began to swallow reality, he realized that it was not the corpse that was burned, but himself.
Lu Jin could smell the scent of the thirteenth corpse at every new crime scene, and Shen Zhao's prosthetic limb contained unburned fabric fibers from that night. The numbering sequence transcribed by Bai Wu actually matches Qi Huai's incinerator temperature chart, implying that all deaths are systematic experiments. Su Ling's letter led Lu Jin back to the past, and found that he had been implanted with false memories - he was not the executor, but the only living instrument that could 'perceive' the fear of the dead. Chen Ya's identity was gradually revealed: he was the survivor of the thirteenth corpse and was transformed into a silent witness. When Lu Jin saw his wife and daughter burned to death in the incense of Qi Huai's ashes, he finally understood: burning the corpse is not punishment, but screening. Shen Zhao finally opened the core of the robotic arm and took out a tape - the person who ordered the corpse to be burned that night was actually Su Ling. Bai Wu's diary is full of words 'He must become a murderer to end the cycle'. The last corpse was numbered 0000. It had no name, only Lu Jin's fingerprints.
