The Strongest NPC After Tomorrow

What happens when an NPC becomes intelligent? Will you get along well with players? Or draw a sword against the player? The protagonist is an example. The moment he was discovered, he had a strange book in his arms. From time to time, there would be words on the book that people of this era did not understand. But only the protagonist knows that by completing the tasks published in these words, you can obtain mysterious abilities and rewards, which can compete with powerful players. Returning to the starting topic, if you ask the protagonist the answer to this question, the protagonist's answer is "Kill and replace the player!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.