From the Start, I Fooled Li Shimin, but He Took It Seriously

[Transmigration to the Tang Dynasty + witty banter + wish fulfillment] Lin Fan transmigrates to the Zhenguan era and becomes the orphaned son of a martyr. From the start, he is buried in debt and saddled with a ridiculous System that earns him points for roasting people. He plans to coast through life by spinning tall tales at his tavern, but the regular who keeps dropping by for free drinks, “Second Master Li,” turns out to be Li Shimin himself! The emperor takes Lin Fan's boasts as gospel: “A thousand catties per mu?” “Crush the Turks and conquer Goguryeo?” Fine, so that's how you want to play it? Then don't blame me for bringing along buddies like Cheng Chumo to roast Wei Zheng, take on the Empress's family, and casually talk the Tang Dynasty into becoming an empire where the sun never sets! The princesses are even fighting to marry me? Li Shimin asks, “Dear son-in-law, what's the next step to becoming ruler of the world?!”