Well, well, well, after re-reading this manga, I suddenly remember manga "Dungeon Sherpa". Where the resident in that manga are worried about losing their source of income if a labyrinth is conquered, they even conspired to taking down the hero party (who trying to conquer the labyrinth). On the other hand, this manga, that issue is not a concern (yet), instead, they focused on conquering it, purely for the sake of challenging oneself and reach the top. I find it's very interesting to see that kind of different perspective.
I also hope that any translation team picking up that manga (Dungeon Sherpa), because the raw already far away and no one picking that manga until now.