Angel

Angels (天使) are immensely powerful beings with very volatile existences. They can be beings of either divine origin, such as the Archangels Gabriel and Michael of Christian doctrine, or artificial existences consisting of masses of highly concentrated AIM fields built-up from the thousands of espers within Academy City. Angels of divine origin get their magical power from a substance known as Telesma.

One example of an "artificial angel" is Fuse=KAZAKIRI, the "artificial angel form" of Kazakiri Hyouka, an existence that manifested from the mixing of AIM fields throughout Academy City and resides in the "Imaginary Number District" when not physically manifested. Angels, both divine and artificial, have been described as possessing halos above their heads and various forms of wings manifesting from their backs, as well as speaking in a language that sounds like high-pitched gibberish to normal humans. Archangel Gabriel has been shown to possess the ability to manipulate any celestial body through the use of "Astral in Hand", allowing it to immediately block the sun by speeding up Earth's rotation. Fuse=KAZAKIRI an existence that is considered considerably less powerful than an a Christian archangel, has displayed the ability to fire beams of energy that can reach several kilometers in length, project an AIM barrier that protects all those around her, flying at supersonic speeds and manifest a powerful energy sword.

Aiwass, the entity that Aleister Crowley supposedly summoned and the true author of the "Book of the Law", has also shown the characteristics of an Angel, possessing a halo above its head and a divine form. Accelerator and Kakine Teitoku, the two most powerful espers within Academy City, have also shown the characteristics of angels when in their "Awakened" forms, developing wings against their backs and, in Accelerator's case, speaking in the language of the Angels when in extremely tense situations. In order to be "summoned" or take a physical form on Earth, Angels must have a medium, or "core", to keep them bound to the Earth. Likewise, if the core that binds them is destroyed their physical form will leave the Earth.