The lights in each of the dorms were not the only lights present in this labyrinth like Ruin. there were lights all around this entire structure, even in the pathways where there was only the carving of the angelic wings, there were lights illuminating the place.
In his mind, KiRA had thought the entire place was illuminated because the people of the past wanted there to be light everywhere.
They did not consider darkness as natural so they hid away even the shadows that appear when the light is placed at certain angles in certain ways.
Since the lights were present everywhere, and since the nature of these lights were different from the natural lights that appear outside of the ruins, he had an unconscious misconception that this is how things were supposed to be.
But that was not the case.
The answer to whatever the creators of these ruins wanted the challengers to find was hidden in the darkness that was not present anywhere around this place.
