In This Life, The Greatest Star In The Universe - Chapter 20:

Tang Dynasty：Live with princess Changele, Li Er is going crazyAfter Xiao Ran woke up, he find that half of his bedroom had gone through time and space.Next to him is a girl with exquisite features and a beautiful appearance. The girl is actually Li Lizhi, Princess Changle of the Tang Dynasty.In the seventh year of Zhenguan era(a era of Tang Dynasty), thermal underwear, baby warmers, and hot water bottles have become the best-selling products in Chang’an City.This year’s Chang’an City was very cold…Xiao Ran made a lot of money!Relying on Blue Star’s various technologies, Xiao Ran successfully captured Princess Changle’s heart and prevented her from marrying Changsun Chong.The purification of fine salt, sugar, medicinal materials, and potatoes and sweet potatoes all entered Datang one by one.

“Is Fate the excuse of the forsaken, is Free Will the delusion of the chosen?”Such was a question that Xavier, the Demon King, never had the chance to ask himself. As he lay defeated, awaiting his death, he wondered about the wretched life he lived.'The hero who killed me, the one who held the same ambitions as me. We both wanted good for the people, for the world. We are both two sides of the same coin, yet, fate decided that he will be the one the light will shine on.Perhaps it was me too, perhaps it was my karma for flowing the rivers of blood with my sword. But still... It was fate that squashed the humanity in me first!Damn fate, if I had one more chance, I would've lived for myself more, I wouldn't have taken this arbitrary role of being a necessary evil... This world, this game of destiny... It can burn to ashes for all I care.'As he sunk into the cold embrace of death, a certain [REDACTED] heard his dying wish with amusement and cast their die, reversing the wheel of time one last time and going all in on him on a risky gamble with the stakes of their world.

I returned to Earth as the invincible Knight King. But the Gods came with me.