The inhabitants of the Yuru continent saw how a sea of flames and darkness covered the sky. Even the dumbest devil could understand by now that the phenomena affecting their home occurred due to a fight between entities whose powers were beyond their comprehension.
Zatiel and Eon Six managed to regain control of their bodies less than a second after the explosion sent them flying away. The Tree of Massacre's armor protected the Neo-Demon from collateral damage, and the Supernova Race man channeled energy into his armor.
The rest of the Devil Marquises ended up with extensive burn injuries, and some of them even vomited black blood since they could not stop the Dukes' energies from poisoning their bodies. As for the Devil Counts, they were at the edge of the battlefield, so none of them died, but many withstood severe wounds.