This is a hard-core police growth history in which a small person counterattacks with his own abilities. Lin Shen, a child in the mountains, sold cattle to pay for tuition and was admitted to the police academy. His classmates laughed at him, saying, "I have no background and can only go to Shangougou after graduation." He did not argue, but wrote down three iron rules in his notebook. Many years later, the people who laughed at him were still there, and he was standing in front of the Municipal Bureau Building...
