Prestige and Access
Leonel and Aina appeared in the Dream Pavilion. Compared to the rest of the world, this place was still one of absolute peace. Those that could have caused trouble here had long since fled with their tails between their legs, they thought that there was really no point in staying behind as there would only be death waiting for them.
Leonel doubted they'd have the balls to come back for years, and that was only if one of them had a particularly potent daredevil side to them. For all they knew, the Pavilion had already been taken over by another Race and they just couldn't be bothered to deal with the humans below. In fact, now that he thought about it, they probably assumed that the Gathering of Kingdoms was precisely that method to "deal with them".
The Human Race had been immune to the Gathering of Kingdoms since its inception. Considering how far they had fallen from grace, there likely weren't even legends or folktales remaining.