'Kawumm!' is a Greek comic in manga style. The story unfolds in 21st century Greece, where Demons and Angels roam around, invisible to humans. Our protagonist, angel Haniel, loses his partner when a demon disguised as an old woman lures them into a death trap. However, this demon was following orders. And the one who gave them to it was none other than the Angels' leader, Crius. Haniel is promoted to Archangel and continues to perform his duty, despite his grief. Not knowing that the one who killed his friend is his own boss.