A demon? They are usually beings of darkness in my world, something of evil. Thus, it is acts and deeds that often determine a demon in my mind. In my travels, demons are never determined by their appearance, for some take guises that deceive the eyes and mind. An example, if you will: a being of evil that I have long fought against, Aku, took on the form of a beautiful woman who was in search of her father. He took advantage of my very compassion and want to help people to take away a chance for me to return to my own time. This knack for deception is one key trait I have found amongst demonkind. Is this of assistance to you?