In 3500 AD, the world war destroyed most of the historical classics. When Lu Yan, a cold weapon enthusiast, was restoring ancient martial arts, he was accidentally involved in the turbulence of time and space. He traveled to the northern border county (Bingzhou Xihe County) in the ninth year of Yanxi of the Eastern Han Dynasty (166 years) and became the son of an ordinary iron shop merchant. The baptism of time and space brought about by time travel gradually appeared in his growth - when he was two years old, he could lift iron tools that could not be shaken by a child with his bare hands, and when he was five years old, he could never forget the map of the utensils that his father read over. These innate powers and photographic memory were so different from ordinary people that his parents were both surprised and happy.
At this time, in the northern border counties, Hu and Han tribes were mixed, bandits were rampant, eunuchs and nobles were fighting endlessly in the court, and the undercurrent that the world was about to fall into chaos was already surging invisibly. Lu Yan's historical memory of three thousand years later has long been blurred due to the destruction of classics, and he has no idea that the magnificent era of the "Three Kingdoms" is about to come. He only knows that he is different, and he can only hold on to his talent, study classics and history, hone his martial arts, and improve his ironwork. He can protect his family with the blade in his hand and survive with the wisdom in his heart. From a young boy in a border county to a strong man in troubled times, he will create his own legendary path in the unknown fog of history, relying on his incredible talent and understanding that transcends the times.