[quote=@Eschatologist]
No, I just wanted a definition. You say that I need to remember that youkai are demons. If demon is another word for youkai, then you just said "Remember youkai are youkai", which does not really help me. I guess if a demon is a youkai, the next question would be "What is a youkai?", and what connotations does this designation bring with it?
[/quote]

Not all are demons, Yokai are spirits and deities as well, just try to think creatures with higher purposes.