Flame Servant: The Engineer Prince of Yan Dynasty

When modern soul Li Chun awakens in the body of Yang Mian—a wastrel noble of the ancient Yan Dynasty—he discovers his second chance at life comes with unexpected complications. Armed with knowledge from another world, he rescues a fierce warrior maiden, revolutionizes agriculture with ingenious water wheels, and catches the eye of the empire's most dangerous woman: the princess herself. In a world of courtly intrigue, military conquest, and technological innovation, one transmigrator will forge his legend as the man who changed an empire.