Xiao Rui, the descendant of the mysterious ancient martial arts family, came to the early Tang Dynasty by accident because of a storage spirit ring, and became Xiao Rui, the eldest son of Song Guogong Xiao Yu. He didn't want to inherit the family business and become an official. Vigorously conquered the Tang Dynasty and became the richest man in the world. However, he was accidentally discovered by the emperor, married the emperor's eldest daughter, and became the first son-in-law. With the growth and rise of Xiao Rui step by step, Xiao Rui's influence is getting bigger and bigger, and the people around him are getting bigger and bigger. There are more and more, even Princess Changle, whom the emperor loves the most... Xiao Rui: It's over, the Tang Dynasty stipulates that the son-in-law can only marry one, how can this be fixed?