It's Great to Have a Library with You Everywhere

Lu Ming traveled back to ancient times and had the largest library of the 21st century in his mind. Careful? Steady? Doesn't exist. Just stand out! With so many endorsements from historical books, shouldn't the protagonist take flight? Hey, why haven't you heard of this dynasty? Never mind! "You want to study literature? "Three Hundred Tang Poems" will help you gain fame first." "You want to join the army? Study "Sun Tzu's Art of War", "Thirty-six Strategies", "On War" and "Scientific Fitness" by yourself." "Do you want to be a blacksmith? This book "How Steel Was Tempered" is given to you." Wait, something seems wrong...