My only complaint is that these guys can clean their ear holes with a table spoon. Like that side image of kento on page 12. "When you stare into the abyss..."
Is their home built inside the dungeon?
The Thing is inside the dungeon but also inside the house?
How does protecting the dungeon help with sealing The Thing?
I guess its gonna transform into a fish and go ~swim swim~
Since The Thing is what it eats, could it be a mimic slime of sorts?