A young boy sells his soul to a demon in order to avenge his family's death and successfully lead their influential toy manufacturing company. The demon takes the form of a loyal butler who's always dressed in black and is required to protect, serve and arrive whenever summoned by his young master Ciel.
Did You Know?
Sebastian never refers to Ciel by name and only refers to him as "My lord" or "Young master". This stays true throughout the entirety of season one and two, Book of Circus, Book of Murder, and Book of the Atlantic. See more
I'm simply one hell of a butler.
A sneak peak of the next episode is shown after the end credits of each episode narrated by Sebastian. See more
Referenced in Hyper Japan 2017
(1st Ending Theme)
Performed by Becca See more