Books to increase knowledge required gamers and NPCs to stay in a quiet corner or in the academy's classroom.
Only by continuously immersing himself in learning could he improve his knowledge.
This method of improvement was simply a waste of Dong Lei's time.
In Dong Lei's opinion, he only needed to spend Military Merits to exchange for knowledge.
Then, he would spend gold coins and equipment to get the principal and the others to help him mutter a few words. Wouldn't he be able to successfully complete it…
Due to Dong Lei's random 100x amplification, the Gold Coin Book and the Experience Book could not stack.
Therefore, they were useless to Dong Lei.
Every battle he fought had a random 100x amplification. What use could anything below 100x be!
Moreover, the knowledge books on these shelves could at most reach One-Diamond knowledge.
It was useless for Dong Lei.