As soon as Lin Yu, a doctor of history, opened his eyes, his soul passed into the body of a small official in the Western Han Dynasty, offending the powerful and precarious at the beginning.
The protagonist was originally a court official. When he first showed his talent, he was regarded as an alien by the conservative dignitaries because of some novel advice. He was labeled as a "sycophant" and was ridiculed at banquets. Even his attendants and nuns wantonly humiliated him. He was in a difficult situation. But he was not knocked down, and his horse was frightened. He cleverly used modern animal training methods to stabilize the situation, which attracted Wei Zifu's favor.
The Huns invaded the border and were in short supply of food and fodder. The protagonist came up with a strategy to farm the fields, changed the means of transportation, and went to the border to train troops to defend against the enemy despite all opinions. He defeated the Huns and captured a lot of goods. However, Jiang Chong and Tian Fu plotted against him one after another, slandering him for treason and seizing people's land. The protagonist collected evidence calmly, exposed evil deeds, was awarded by Emperor Wu of the Han Dynasty, and was promoted to an official. Since then, he has devoted himself to assisting and building the glory of the Han Dynasty.