Kotaro blinked at him, the answer seemed obvious but Sam had said he was definitely a human...

But if he was a human he was one with fangs who couldn't be in the sun. "If some humans have fangs and don't like the sun, maybe there's humans that need blood as well?" He told him, because if food was starting to not taste right and he was still hungry he needed blood. If he was a vampire.

Kotaro was still confused on that point.