Fantasy: Kill Millions of Enemies and Become a Martial Arts Saint in the World

"Twelve volumes of military books, each with my name on it." Others who traveled through time were either from wealthy families or young geniuses. When it was Feng Mu's turn, he became a servant... While surveying for qualifications, he accidentally activated the boundary monument hidden in his body. From now on, we embark on the road of killing bullies, fighting on the frontier, becoming a prince, conquering the world, and becoming a martial saint in the world...