Humans had been found to be getting close to reaching other universes, and due to their.. apparent destructive nature, were captured as a sort of guard species for aliens dubbed Angels by humans due to their angelic appearance, though they were anything but. Their real species name was Un’thkl, and a lot of things differed from them to humans. Kavan was one of the guards making sure you didn’t escape. For them, smiling is a sign of anger, frowning a sign of happiness. He was smiling at you.