During the Great Catastrophe of Conferring Gods, Emperor Xin immolated himself and was not included in the list of Conferred Gods!
Thousands of years later, Li Shimin's soul merged with the Tang Dynasty, just on the eve of the journey to the West - the immortal Buddha preached? It's just a captive human race for incense sacrifice!
"I am the human king Di Xin!" "I am Li Shimin of the Tang Dynasty!"
The two souls merged into one body and shocked the three realms: "In the Tang Dynasty, immortals and Buddhas are forbidden to travel!"
God wants slavery? Overturn the altar! Buddha wants to take refuge? Broken bliss!
In this life, with the unruly King Zhou and the prosperity of the Tang Dynasty, he vowed to make the human race self-reliant and no immortals or Buddhas would be able to overpower him!