The Daevas were a class of demons in Zoroastrianism that chose to follow Angra Mainya.
Zoroastrianism
Zoroastrianism is a belief system – likely founded around the 6th century BCE – based on the teachings of the prophet Zoroaster. Zoroastrianism is a dualistic religion with an all good creator, Ahura Mazda, fighting an endless battle against evil, chaos and destruction led by Angra Mainyu or Ahriman. Read articles about Zoroastrianism below.