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In recent years, evil forces have greatly expanded. Many villain groups have integrated together to form a huge dark empire. The superb technique gives every patrol room a headache. Thousands of families are also living under the shadow of the epidemic, and are on tenterhooks. But one day, the most important super villain suddenly came to the patrol room and surrendered. Starting from this day, the future of the entire world will be violently rewritten... ... My name is Chen Mo, and I am a glorious reserve patrol officer. I, who got first place every time, even activated the system. As long as you die, you will be returned to the previous save point. The price is a gray hair. I felt invincible, so when the teacher came to me to discuss an undercover plan, I agreed without much thought. But I didn't expect that this plan was far bigger than I imagined. The cunning and cruelty of criminals are far beyond imagination. Familiar names disappeared one by one. Fewer and fewer people know my identity. Until I'm the only one left. Now, seven years have passed. The time has finally come, and it's time to close the net. I have gray hair and a list of sins across the dark web. I will take those unwilling souls to fight evil to the death. (Completely fictitious background, has nothing to do with reality)