[Oh. Of all things, of course it's a vampire. Another odd little "demon" running around, sharing breathing space with Sebastian's master.]
I have been duly informed as to what it entails. [Nothing he can he do, is there? He could snap her neck while she's vulnerable. Isn't that a nice thought.]
But if that is the case this need not be nearly as difficult as you are making it, miss Yuuki. Please tell me what kind of blood you would have. [He can go fetch some from one of the food stalls in an instant. Might even give it to her.]