The Second Book by Zhibi Simo

Transmigration + System. The soul of a 25-year-old top student from a science and engineering university transmigrates into the three-year-old last emperor, Puyi. He turns his fortunes around with modern knowledge, foresight into history, and the aid of a transmigration System. Not only does he change the course of history and prevent the fall of the Qing Dynasty, he also develops all kinds of advanced firearms, raises an army, subdues all the forces within and beyond the Central Plains, recovers lost territory, and vigorously develops the economy and improves people's lives. He unifies the land and transforms the doomed Qing Dynasty into a glorious empire that draws tribute from every nation. Along the way, one romantic encounter after another comes his way, and his harem keeps growing. He lives a blissful, shamelessly indulgent life in the Qing Dynasty.