Eternal Sin City, Waste Area. Li Shuo knelt in the radiation mud and pulled out a thumb-sized crystal core from the pile of mutated rat corpses. The crystal core contains seventy years of memories of an upper-city nobleman - from the white jade stairs in the purification area to the conspiracy of the Memory Parliament, every frame is marked with a sky-high price. But Li Shuo didn't trade it. He bit his finger and the moment the blood seeped into the crystal core, a cold mechanical voice exploded in his mind: [The simulation deduction system has been activated. Current available memory reserve: 0.7 Units. The first deduction is free. The screen is torn apart - three hours later, the memory dealer's butcher knife will sweep across the entire scrap alley. The neighbor Lao Li's head will be hung on the skeleton, and the limbs of the childish ghost will be dismantled into parts. Li Shuo opened his eyes, his Adam's apple rolling. He stood up and walked towards the alley. It's not about rescuing people, it's about picking up leaks. In the first deduction, he emptied the black marketeer's arsenal in advance. In the second deduction, he locked the abandoned water purification chip underground in the middle city. In the third deduction, he saw the ending where he was sent to the memory auction stage - and the person sitting in the VIP seat holding a sign was his long-lost brother. The system said: The deeper the deduction, the more precious the memory consumed. He forgot his mother's smile, forgot someone gave him half a piece of cake on a snowy day, and forgot his trembling fingertips when he killed someone for the first time. But he remembered one thing - every time he performed a deduction, the system would quietly tamper with the memory of someone close to him. Yin Ye will forget his promise, Li Lao will regard him as an enemy, and even the crazy Mrs. Xi will write him as the evil dragon in the story. Li Shuo pressed the crystal core into his chest.