The First Step in Politics Starts with Being a Secretary: Rising to the Top

[Not a System novel + no harem + well-paced + plenty of dramatic twists + political intrigue + urban life] The protagonist starts out as a county government clerk. By a stroke of luck, a detailed report earns him the favor of his superiors and launches his career in government. With political maneuvering and keen intelligence, he moves forward steadily, climbing step by step to the pinnacle of success.