Where are her maids and guards?

I mean seriously a noble woman shouldn't be able to step out of her room at night without a maid or guard with her. Where is Lumie? Before Sina came he would have been posted outside Lan's room and even if he was resigned, it doesn't make sense that they wouldn't replace him and not protect the lady of the house, especially after a kidnapping... I know it's a fantasy manga but it's unrealistic to establish that the lady always has a personal guard then forget it.