Oh, really? Bats by and large use sound to get around... and we vampires, we have eyes adapted to this sort of lighting.

[ Or lack therefore of. Still in the dark, now with comb in hand, she walks back over to Hibiki, takes her hand, and then guides the girl to sit down at the desk chair. She still doesn't turn a light on. And she runs her finger down the girl's hair a little...

Mmm. ]