Archangel Gabriel is an archangel that appears in the Toaru Majutsu no Index main storyline. Being a divine entity and classified as an archangel, Gabriel is one of the most powerful characters in the story. In fact, Gabriel is called The Power of God and according to Kaori, Gabriel rules over the symbol of water which is its attribute and is the guardian of the moon, the governor of blue, and the protector of the rear side.