After the modern otaku programmer Li Xian died suddenly and unexpectedly, he was reborn as Li Shen, the ninth son of Emperor Taizong Li Shimin of the Tang Dynasty. I wanted to rely on historical knowledge to enjoy wealth and stay away from the court, but I was bound by an unreliable "prosperity system". The system tasks are more and more outrageous: asking Changsun Wuji to dance in the square, giving Wei Zheng Amway health tea, changing the Tai Chi Palace into a check-in point for Internet celebrities... Li Shen, who originally wanted to be a salty fish, was forced to repeatedly jump between trouble and survival, but unexpectedly uncovered the undercurrents of the prosperous Tang Dynasty.