Camael, an archangel of the angels' original civilization, engaged in a pivotal historical event by assaulting a research base alongside Satanael. Their objective was to terminate ongoing immortality research, designed to cure a global epidemic but deemed a threat to the natural order. The attack targeted both the scientists and the project itself, yet the angels were overpowered due to Satanael's intimate knowledge of their genetic structure. This incident indirectly ignited a catastrophic world war that annihilated their civilization, as mutated information from the event fueled widespread conflict.

Within the main storyline, Camael operates among the archangels embroiled in dimensional conflicts impacting Ente Isla and Earth. He aligns with the celestial hierarchy opposing demonkind and exerting influence across realms.