Top chef Su Chen traveled to Zhenguan Tang Dynasty and met Xiao Sizi, the little princess of Jinyang by chance. Relying on his superb cooking skills, he won the love of the little princess with his delicious food, and gradually gained the appreciation of Li Shimin, Queen Changsun and the prince. Su Chen carefully nourished and recuperated her, reversing the fate of Xiao Sizi's early death. At the same time, he successively provided advanced technologies such as refined salt purification, potato planting, and glass firing to steadily help the development of Datang. He grew up from an unknown handyman to a legendary figure who profoundly influenced the prosperous era of Zhenguan.