Okay, to set a few things straight, a black blood is a type of magical alien like human that usually has dark hair and eyes and little to no emotions or remorse/guilt. Black bloods take a liking to demons, harm, and Victorian style, and many black bloods need pain to survive. Also, they're called back bloods because instead of red or blueish, they bleed black. Now that that's done, this is my universe for black bloods. Please give feedback! Invalid Universe
It's very interesting concept and I especially like the idea of the visual, but overall it's still kinda vauge so it's hard to really critique it. Your world is probably so clear in your own mind that a couple of sentences is all that's needed to get your brain going, but I still feel like I need more!!
I'm really no help with getting there because my universe pages look exactly like that lol. I have a hard time writing out all that i'm imagining on the notebook page, so I just try to communicate it through my narration (and you probably do the same).
But honestly I like this idea and there are so many possible conflicts and cool setting to explore here!! Keep it up and keep writing!
I really like the idea however the magic system needs defining and planning. You could create different sections of your magic or some rules and boundaries for it . Good luck writing!!!!!!