Intermission - The Night Stroll Of Two Maids
Within the Nilm family, there is one existence known as the Head Maid.
She is someone who stands above all the other servants and is also the personal maid of the head of the family, making her the third highest person in the mansion's hierarchy. Incidentally, the only two people above her are the Madam and young Mistress.
As the Head Maid, she acts as the overseer for all the servants and goings-on inside the estate including but not limited to the day to day administrations, logistics, security and welfare.
Right now, that position has always been occupied by one person by the name of Mary, who had been serving the Nilm family ever since its founding.
As part of her duties, she also ensures that all threats to the family are neutralised completely and cleanly.