Daemon Spade was originally the first mist guardian. However, he later betrayed Giotto and mislead the operation to save Simon Cozart. But unknown to him, this plan was foiled when Giotto realized Daemon's true plan and able to save the Simon Family without his knowledge. After Giotto's resignation as Vongola Boss, Daemon became Vongola Secondo Mist Guardian and continue to watch over Vongola for generation to generation by cutting off his attachement with his own body and survive for years by continuously possessing people and arranged the battle between 10th Generation Simon Family that led by Enma and Vongola Family that led by Tsuna.