This is the story of just one world. A world where, at the beginning of its history, people fought demons for existence. A world where people, having defeated demons and gained unprecedented power, became Gods. A world where the Gods, who were once people, have forgotten who they were and what they fought for. This is the story of just one man. A man who fought against demons shoulder to shoulder with his comrades. A man who was equal among the First. A man who had the strength to reject divinity and maintain his dreams and ideals. A man who kept love and friendship in his heart. This is the story of a god who remained a man. For only God has the strength to overthrow the Sky, and only man has the courage to challenge the Celestials.