Some examples of the MC's mentality:

• • Not paying NPCs for items/services will decrease his reputation and no NPC will do business with him anymore, so he slaughters the entire store to preserve his reputation

• • MC isn't hung-up about revenge when he's beaten, because "all players understand that as long as they keep playing, they'll eventually become stronger than anyone else in the world".

• • This quote: "Gu Nan will never help an NPC of his own volition. He will only ever do so because of missions, so the relationship between him and anyone else in this world is always a business transaction to the satisfaction of both parties. He won't consider other people's feelings, but at the same time, he won't demand anyone's loyalty either. After all, in the game world, players have long since gotten used to this kind of event - the NPC they rescued with difficulty would someday randomly drop out of their party just because of some story plot line." So he doesn't demand anyone's loyalty, as long as they can bring him results. Betrayal doesn't faze him, because he never trusted anyone to begin with

• • "Players are contradictory creatures who would kill without any guilt yet still disdain dirtying their clothes with blood."

• • "There are two types of NPC organizations: those that players can crush now, and those that players can crush later."

• • MC ignores other characters' taunts and doesn't rise to them, because players often skip the dialogues of wordy NPCs - who has time to listen when you just want to complete the mission as fast as possible? He only responds when they actively try to stop him

• • Trolls people with his blase attitude even when naming something as important as his kingdom or alias, ex. "Ying Ge's Daddy"

• • Because players were evaluated based on their actions, not words, the MC doesn't understand why people would run their mouths off in a fight instead of using that time to launch an attack

• • The MC's method of dealing with problems might seem unreasonable from a normal perspective, but in his view, NPCs that try to stop him during missions are simply humanoid monsters that pop up to attack players during missions, so of course the only logical response is to kill them

• • The MC doesn't magically remember every single little detail about the game; he doesn't have a photographic memory. Instead, he just remembers where he can look for the relevant information

• • No shame. Female character: "What, are you scared?" As long as he's a man and has pride in his strength, he'll rise up to the taun-
    MC: "Yeah, it's dangerous ahead, so you can take the lead."

And for Gu Nan, it's the fact that he's in a game world and everyone is an NPC meaning he thinks he's not even killing real people, but people who don't exist.