Oh really? Well maybe I'll have to get myself a little hurt on purpose to gauge that for myself.

[Not like he'd likely have to even try, really. Given his habit of throwing himself thoughtlessly into danger against beings who are much stronger than him it's only a matter of time really, not helped by his Sanguis moonblessing.]

They don't really require blood, at least not in order for them to live. Of course there are vampires who are addicted to it or who actively kill humans because they become ill and cannot control their bloodthirst, but in general they're able to draw nutrition from normal food.

[He hums thoughtfully then, tilting his head. What reason would be the most interesting to tell her? Should he be vague or go for a lie? Or perhaps even the truth?]

Hm~ Because only I have the ability to save them.