Doesn't the Scarlet Devil Mansion literally accept anyone as staff? I mean the fairy maids canonically don't really even do any work and are free to come and go as they please.
Moriya
Woow, now that's fast talking—!!
That is why I, the lady of the house, must personally step in!!
And ascertain for myself if this creature is truly deserving of my protection!!
WE WERE LISTENING IN!!
Even more noisy people...However, this here is the mansion of a proud vampire feared and respected by many!!
If we start accepting new residents all willy-nilly, my name as the Queen of the Night will suffer!!