Biyu had never been that much into the study of the different creatures that lived on the continent or even in the other parts of the world. She knew there existed several different races of human, but that was only because she was a chiroukin herself. She had never met someone from another race before. She had met many beasts, and she also heard of other intelligent species from all around the world.
However she wouldn't have thought that her first encounter with one such being would be in a dark alley while spying on an angry kid. And most importantly, she wasn't prepared for whatever that thing in front of her was. It was like...A human shrouded in gas. He had that black gas all around him, and it took Biyu a long time to recognize it. That's when she started to really question some things.