Return To The Prosperous Tang Dynasty And Become The King Of Sui Dynasty

In the third year of Shenlong in the Tang Dynasty, there were internal and external troubles, the mediocrity was in power, the demon queen was in power, the border troops were killed and wounded year after year, and the people of the world were in dire straits.
Fortunately, I have become a descendant of the Hongnong Yang family, and my brother-in-law Li Chongjun is still the current prince, so I can rest easy for the rest of my life.
Why do you mean I have to follow my brother-in-law to attack Xuanwumen tomorrow?
......
In the next few years, the Tang Dynasty developed martial ethics and once again became powerful in all directions.
I have sworn to Luo Shui that this is a story of beautiful reunion.
If I lie, then I am a powerful relative who plays with the princess, kills the family, plays with power, praises and worships unknown people, does not follow the rule of the court, goes to the palace with swords and shoes, and plots to usurp the throne!