The Black Airs is a team of monsters that were active during and after the war between Humans and Monsters. They all have fearsome reputations, which gives them high bounties in the Varagan Brother's monster hunting book. They are also called the strongest group of monsters in the last great war.
They believe in unity between monsters and humans. The group saved Selshu from dying in a river. Soon after they went to the ruins of his city to confront Tri command.