Pei Shunian, a doctor of military history, died in a car accident. When he woke up, he found that he had traveled to the Yan Dynasty and became the border guard general Pei Shunian with the same name. Due to an inexplicable military defeat, the original body was deprived of military power and demoted to a white body. More than half of the 30,000 soldiers were lost, and the whole camp was filled with grief and anger. Pei Shunian soon discovered that the defeat was not due to incompetence, but because someone in the court deliberately withheld food and grass and leaked military information, which involved a struggle for imperial power. The Beidi cavalry were watching with eager eyes, and the undercurrent in the court was surging. Everyone thought that Pei Shu's year was over. But they don't know that Pei Shunian now has five thousand years of war history in his mind. He knows everything from Sun Tzu's Art of War to modern guerrilla tactics, from psychological warfare to intelligence warfare. This time, he will use his smartest brain to fight the toughest battle and crush those who plotted against him one by one.
