An otaku named Lin Feng, who accidentally traveled through time and became Liu Che, Emperor Wu of the Han Dynasty, had a modern knowledge base. He originally wanted to live a peaceful life as a foolish emperor. Unexpectedly, the Xiongnu was looking at the north, the vassal kings were separatist, and there was an undercurrent surging in the court. There was no other way. In order to save this small life, Lin Feng had to roll up his sleeves and carry out reforms: promoting hybrid rice, establishing Jinyiwei, and developing gunpowder technology. As he pushed the weak man to the top step by step, he accidentally touched the taboo of traveling through history. How will he choose between the glory of the empire and the laws of history?