After transmigrating into Li Zhi'an, the least favored prince of the Tang Dynasty, he finds the System crashed from the start, leaving him with only a [Population and Treasury]:
As long as the population of the Tang Dynasty grows, he can earn a fortune every day without lifting a finger!
Unfortunately, he can't access the money until he leaves the capital to take up his fief. To survive, Li Zhi'an has no choice but to set up shop on the street, making soap, building furniture, and opening a hotpot restaurant.
Along the way, he even picks up a mute girl on the roadside and hires her as his bookkeeper.
Then the System suddenly goes haywire:
[Ding! The Host has married a lost princess of the imperial family. Reward: a complete infusion of cultivation, reaching the pinnacle of Earth Immortal! The Xuanyuan Sword has recognized its master!]
Li Zhi'an looks at the pig-pancreas soap he's just finished boiling, completely dumbfounded.
I've become invincible, and you're still making me sell soap?!
Even more absurdly, his little bookkeeper turns out to be the eldest legitimate princess of the Tang Dynasty, missing for twenty years!
And so the whole atmosphere in Chang'an is turned upside down:
The empress invests her private savings in his furniture business.
Cheng Yaojin hangs around the prince's manor every day, mooching hotpot.
When a million Turkic cavalry surround the border pass and Li Er is fretting over military expenses, the usually stingiest Idle Prince casually cleaves open the gates of heaven with one sword strike and tosses out ten million taels of silver.
"Don't worry, Father. I'll take care of the whole realm!"
