I Am the Realm

Ying Zheng, the First Emperor of Qin, transmigrates into the body of Lin Zheng, a 16-year-old terminally ill poor teenager in a remote mountain village in 2008. With nothing—no power, no influence, starting from absolute poverty and a broken body—he uses his imperial mindset, Legalist strategies, millennium-spanning vision, and ancient martial arts to climb out of the village's mire. He first saves himself, then supports his family, then controls businesses, then wields power, dominates both the underworld and the legitimate world, and ultimately ascends to the top of modern China. — Description from novelcodex.org