Demon Slayer: I Will Create the Original Plot of Enichi Tsukuni

A huge black iron bird fell from the sky and could fly without flapping its wings. The giant bird dropped two black "bird eggs", and the entire Zaoda Country turned into a hell on earth. The ghost-slaying warriors, united by the five major families, use the power of wind to go deep into space and compete with the giant steel bird. The giant bird can erupt an attack similar to a meteor bomb, causing heavy damage to the ghost-slaying warriors! It happened that neighboring countries were in rebellion and led troops to conquer the Zaodao Kingdom. For a time, the Zaodao Country turned into a human slaughterhouse with corpses strewn across the land. Four hundred years later, a young man named Jiguo Enichi was born!