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The protagonist, Lin Feng, is an ordinary modern young man. After an accidental electric shock, his soul traveled to a parallel world similar to the earth. In this world, he became a newly recruited police officer and accidentally acquired a mysterious ability called the "Case Analysis System." This system can provide him with key clues and ideas for solving cases when he encounters them, helping him repeatedly solve strange cases and become a legend in the police world. As Lin Feng grew up, he gradually became involved in more complex and dangerous cases, from street thieves to cross-border smuggling. He relied on wisdom and courage to resolve crises one by one and reveal the truth.