[quote=@Burning Kitty]
So if a human learned fire & water for example as a vampire they can't learn demon?

Is there any difference between the noble vampire houses?
[/quote]
Well atm it's the forced eye colour and just a point of origin for some of the vampire characters. The houses are just different families but allies holding control over Gallowstein. I plan on making house leaders or have certain people become leaders, leaders will decide later in the story what happens possibly a war for control or uniting into one house by peace.