Shalltear Bloodfallen
Shalltear Bloodfallen (シャルティア・ブラッドフォールン) is a true vampire and the Floor Guardian of the first to third floors in the Great Tomb of Nazarick. She was created by Peroroncino. She is commonly depicted in the Light Novel "Overlord," by Kugane Maruyama, as well as the anime by the same name.
"It can't be helped if you don't know how high the stars are, right? Childish thoughts like being able to touch the stars by reaching out for them are best left for a girl with childish sentiments like Aura. They're disgusting when you hear them coming from an adult." - Shalltear Bloodfallen, to Brain Unglaus.