@Nylodale @Wind1
Harold's biggest problem is he's trying to stick to the game's original story while not getting killed, he's not fully beyond the idea that this world is real and that he IS harold, not a person stuck in harold's body.
I agree that harold needs allies, but the reason he's trying to keep people away from him is he knows that the hero has to kill the demon king, and if he changes the story too much the demon king might be able to run rampant without a hero and his party to defeat them, this is of course with him not realizing that considering he's basically a boss character, he's also got the potential to do that.
Before you ask, none of this is spoilers, this is just what's known from what was shown in earlier chapters of the manga with a bit of extra explanation the novel gives.