As everyone has mentioned, the MC is an overpowered beta cuck male.
The plot is all over the place.
And the setting is even harder to believe. 1 in-game gold equal to 1 US dollar? Are they trying to rip off the player with that price? And since they can trade the in-game currency into real-life money, how the f*ck can the game dev make a stable profit for years? It's even weirder to know that the dev deliberately makes a class that can make millions of profit in-game and in real life without spending a single cent. Any logical person will realize right away that this one legendary class will make the company bankrupt in a matter of months.
Also, wtf with the game engine!? NPCs have feelings and emotions!? And they all have different characters and different egos!? And you can have a full-blown conversation with every NPC!? And what's worse, all of the NPC have FREE WILL!? Whatever engine they use to make the game, it's borderline magical. It's humanly impossible. It might as well be a GOD who created this game.
There is also no privacy protection in the game. Your in-game avatar is exactly the same as your real-life appearance. You can easily connect the two and two together. Surprisingly, the company can publicly announce whatever information about a player on the tv. This should be illegal.
And lastly, since we know that this is just a game, there is almost no suspense moment in the story. When someone dies, they simply logged out. When someone says "my life is on the line", it has no meaning whatsoever. And when Huroi said to follow Grid forever as a subordinate, that's quite a laughable dedication. This is just a game. Chill the f*ck out, will you?
[EDIT 1]
I agree when others said that the game NPC has a better overall story and character than any other real-life human character. The NPCs has proper background, story, character, goal, and they are the one that guides the MC along the way. Meanwhile, the users (human player) are just there to be stronger. If they are not strong, they won't even be mentioned. This is also one of the reasons why I can't believe whatever technology they use to create NPCs in the game.