Very interesting, and beautiful! It's already been mentioned, but this had that 'seductive but empty' VtM vibe. With the difference being our protagonist's little plot twist~
I'll be honest and say that part of the intrigue for me is that you've listed this as a queer vampire story. I feel like most of the vampire stories I've encountered are predominantly hetero. Which is kind of odd, because vampires have always read to me as having homosexual undertones.
Bringing me to my next question: is the sire's name (Marvella) a reference to Carmilla/ Mircalla, or is it just a coincidence?
I have even more questions, because this short demo has really caught my interest! But I'll leave it at that (for now). Good work/ be proud of your demo. It's very intriguing.
<3