Mitarasaki Evalinna
she is a vampire aged 1573. Her cockiness comes from the fact she sees humans as inferior species since they have neither strength worth to be mentioned nor longevity. For a long time she mostly ignored humans but when they killed her parents she adopted a drastic view and is out to make humanity submit to her and all vampires. She hates her older sister since she doesn't share her sentiments so she tries to get rid of her, too. Accidentally, she created a half, Siri, who she then starts to lure Endou Hakuei to her. She mostly is an angry, misunderstood soul, maybe...

If you feel like it, I would be glad if you swung by over at Insta~ where I am mostly active right now ^v^