To say the Butler in question was upset when he found out he was being called Reiko's Butler was an understatement, but mostly he was just using the anger as a cover for the fact that he was just terrified of having to go outside and fight undead to collect their hearts.
"Man, you've trained with your sword since you were a little kid. Fighting the Undead is just like your sparring partners at home, only you get a real sword, and you don't have to hold back." Wolfe told him, ignoring the fact that hundreds of species were susceptible to becoming undead, not just humans.
"Easy for you to say. I've seen you fight in the training class, and you're enhanced way beyond human, plus you can use magic." He complained, then started checking the backpack to make sure it had everything that they should need.
"We are short on water. There is only a small canteen in here." He reminded Wolfe.