Li Xiao, a modern engineer, was reborn as a dandy in Chang'an during the Zhenguan period. He originally wanted to hide his stupidity and enjoy himself, but due to an accident, he was forced to survive under Li Shimin's sword. From then on, snowflake salt, divine arm crossbow, blast furnace steel... Countless "weird skills and tricks" appeared in his hands. He built workshops, investigated objects, reformed imperial examinations, and used science and technology as his blade to cut through the thousand-year-old iron curtain of aristocratic families. From the court to the battlefield, from business to love, he played around with the Tang Dynasty and personally created an iron-blooded prosperity that far exceeded history. This is a passionate legend about a man from science and engineering who used scientific thinking to become a prince and prime minister.
