Chaos is the Protogenoi of the Void from the Greek-Roman Mythology and is the Creator of the Universe. As such he is the oldest being and existed before time itself and is considered to be the strongest existence, whose powers surpass all other beings. He also created the other Protogenoi and later on Ophis. A portion of Chaos' essence was sealed by God of the Bible within the Sacred Gear, Void Matrix, which is currently wielded by Merlin Ambrosius. Despite that, Chaos still remains free and one with the Void though he can communicate with Merlin when he wishes too.