Wei Cheng unexpectedly gains the ability to travel to the Three Kingdoms. He mistakes his wife, Cai Wenji, for a ghost and flees, encountering the medical sage Zhang Zhongjing along the way. They live in seclusion in the Lüliang Mountains, using modern supplies to enjoy a peaceful life. However, Wei Cheng's casual words inadvertently alter the course of history. His prediction of He Jin's death leads to Dong Zhuo's dictatorship, his comments about Cao Cao cause the latter to be hunted, and his simplified version of the "Luo Shen Fu" poem captivates the beautiful Zhen Mi. He forges eighteen extraordinary weapons, influencing countless lives.