former third-year student in Babyls Demon School and the former representative of the Magical Apparatus Battler. While his demon ranking is Beth (2) and he is considered a physically and magically weak demon, he was the mastermind behind the attack during the Battler Party and the main antagonist during that time.
Despite his harmless appearance, Kirio actually enjoys seeing people in despair and plots to destroy Babyls. He is an executive member of Baal's movement eliminate the current system 