Neo-Confucianism

Li An, a down-and-out and promising young man from the 21st century, died of poisoning due to drinking fake wine. After his death, his soul passed through the body of Li An, the son of a businessman with the same name who was born in the Zhenguan period of the Tang Dynasty. With the knowledge and ideas of the 21st century, he planned to do something great in the Tang Dynasty!