Shen Yi traveled through time and became a concubine of the Hou family whose father did not care for his mother and who could be packed up and sold at any time. The only way out was the imperial examination. In order not to be secretly killed by those brothers and sisters, Shen Yi decided to take the exam and get an earth-shattering ranking, and then be released as a salted fish county magistrate. From then on, the sky will be high and the emperor will be far away. In the imperial examination policy discussion, the question was how to deal with Beidi knocking off the pass. Candidates: Those who quote the scriptures are shouting for the enlightenment of the saints. Shen Yi: Thank you for the invitation. I just came here and finished memorizing the history of pre-Qin art of war. So with a stroke of his pen, he used the examination room as a sandbox and eloquently wrote a eloquent article on the eight tactical applications of luring the enemy deep, dividing and encircling, and blooming in the center, directly silencing the examiner. Emperor: This son... Has the talent of a general! Minister of War, General Wang: How wonderful! How can such a genius stoop to the temple? So, after an imperial edict came down, Shen Yi was packed up and thrown into the most dangerous vanguard camp at the border. Facing the 3,000 remnant soldiers and the 80,000 enemy troops on the opposite side, he looked at his frail and helpless body. Shen Yi: "..." I'm just a history keyboard warrior, are you serious? ! I have no choice but to take out all the inventory in my head in order to survive. "Who, go, dig a hole, and I will teach you how to make a local trap." "Everyone, make gold juice! Don't ask, asking is the secret weapon!" "Listen up, the most important thing in war is psychological warfare. Say to me: Listen to the people across the way, you are already surrounded!" Later, there was a rumor in the capital that an evil scholar came out of the border gate, and defeated the enemy's 80,000 soldiers with 3,000 remaining soldiers, trapping and killing countless people.