just now I found out, why sakuya was choosen to work for them:
every time remilia wants some blood, she just have to dress all sexy and sakuya will instantly bleed :D

and when they lick it off she bleeds more and the process reapeats until Sakuya need a blood transfusion.

How Sakuya still has a calm face, I do not know.

iamnototbeknown said:
How Sakuya still has a calm face, I do not know.

years of training

Krugger said:
years of training

Ah. That explains it. Still kind of wierd.