AD 2147, Tianqi City. On the eighteenth floor of the ruins area, Shen Du squatted in a leaky shack, counting the last three expired cans. Outside the window, the fog engulfed the entire street. Tonight, the city switches to a new rule - "Law of Night: Any creature illuminated by light will turn into crystal." Shen Du closed his eyes. The causal vision opened: he saw three threads wrapped around his neighbor Granny Chen - one was her life, one was the psychic battery she had hidden for ten years, and one was connected to the hunting team of the top-level fairy clan. He cut the first thread. Granny Chen's breathing stopped. The battery rolled to his feet. The next day, he exchanged batteries for an entire layer of supplies. The stocking point has been upgraded from the 18th floor to the 15th floor. The night rhythm changes monthly. Some people are killed by rules, and some people are fattened by rules. Shen Du discovered that the causal vision can not only cut off other people's threads, but also see the "loopholes in the rules" of every material - cans that have expired for three years have doubled in value in the night law of "no fresh food is allowed"; garbage dumps where scrap metal accumulates are gold mines in the night law of "metal is currency". He stocked up, he upgraded, and he led Tieniu, Jiang Nian, and Xiaolu all the way up from the ruins area. But the karma is piling up. With every pull of the thread, he was one step closer to losing a relationship. When the hunting team caught up with him, when he had to choose to cut off Wei Wujiu's thread to save everyone - Shen Du clenched his fists. "It's safe to stock up," he said to himself. But what if safety needs to be exchanged for important people? Tonight, he wanted to let Apocalypse City know: Those who climb up the ruins will not bend their knees.