To what extent must a housekeeper do things to be acceptable? One of the noble families of England:...
https://www.funimation.com/shows/black-butler/
(Free, Legal)
•Supernatural
•Historical
•Mystery
•Fantasy
After Ciel Phantomhive's parents had their lives taken by a mysterious cause, Ciel was joined by his new butler, Sebastian Michaelis. Though this is no ordinary butler, it's a demon.