A Landlord in the Tang Dynasty

Xu Qing was a science student. One day, he passed out from heatstroke while handing out flyers and transmigrated to the early Tang dynasty, where he became a lowly palace guard. He earned military merit helping to wipe out bandits, and the court rewarded him with land, money, grain, a grand residence, a carriage, and two young maids! Just as Xu Qing was planning to live it up and settle down as a landlord, Li Yuan took a liking to him and made him a gate commander. And the gate in question was none other than the Xuanwu Gate! Serving the emperor was like keeping company with a tiger. From then on, Xu Qing's modern knowledge was squeezed dry, while his estate grew more and more prosperous...