Great Tang: I Run a Restaurant in Chang'an

Chen Xiao transmigrates to the early Zhenguan era of the Tang Dynasty and inherits his family's tavern in Chang'an's Eastern Market. Little does he know that Emperor Li Shimin, going by the name Brother Li Er, has become one of the tavern's regulars. As they drink together, Li Shimin's questions grow increasingly strange: “Shopkeeper Chen, the Turks keep raiding south. Is there a way to put an end to it once and for all?” “Shopkeeper Chen, locust plagues are ravaging the land. How should the court respond?” “Shopkeeper Chen, the world is so vast. How can the Tang cavalry rule it all?” Chen Xiao is at a loss. I'm just a restaurant owner. Why do you keep asking me these things? The real question is, how did the Tang cavalry actually end up ruling the world?