Demons (True Name)

Creation and Culture
The first demon was created by archangel Lucifer after Dio banished him from Heaven for refusing to revere humans. In revenge, he took a human person - Unknown - and stripped away his/her humanity to make her the first demon. For this offense, God commanded Michael to imprison Lucifer in a cage in Hell which near destroyed the world.

Demons have a belief system analogous to humans, according a demon, but while humans believe in Dio as their higher power, demons view Lucifer as theirs. No demon had ever actually seen Lucifer. If this is true, it would mean that the first demon was made without seeing his/her maker.

All demons were once originally human spirits, which become demonic when tortured in Hell until their humanity is lost. Prior to becoming demons, it is unclear on what criteria the human spirits are judged as being worthy of Hell.

Characteristics
Demons can have either physical bodies or no bodies.. Other demons appear as a ‘black smoke’ in their incorporeal form. Their presence may leave traces of sulfur around where they have killed something. They can manifest by possessing humans, alive or recently deceased, via Demonic Possession.

Physical Demons have humaniod form except their demonic eyes which are always shown, unlike other demons.