When you are in the Tang Dynasty, you start by telling Li Shimin's fortune!

Xu Luo traveled through the Tang Dynasty world and started by telling fortunes for Li Shimin.
"You will be in danger of bloodshed within three days!"
Li Shimin was stunned. Will I be killed within three days? Humph, if you don't allow me to do so, I will kill you!
As a result, the imperial guards in the palace were strictly enforced, patrols were increased more than tenfold, and the palace was closely guarded by the greatest swordsman in the Tang Dynasty.
The three-day deadline was approaching and the assassin had not appeared, so Li Shimin prepared to have Xu Luo beheaded.
Unexpectedly, Li Shimin's forehead bled in order to protect Princess Changle.
Changsun Wuji: "Your Majesty, Your Majesty, your forehead is bleeding!"
Fang Xuanling: "Is the art of Zhouyi so magical?"
"Du Ruhui: "Your Majesty, please invite that young man to serve as an official in the court!"