In Victorian England, young Ciel Phantomhive serves as “the Queen’s Guard Dog,” managing disturbing occurrences for Her Majesty. His loyal butler, Sebastian Michaelis, supports him with his supernatural abilities. Together, they use all necessary means to complete their tasks, but Sebastian’s mysterious and dark nature raises questions.
Ciel’s dark past involves a tragic event that plunged him into endless darkness. At his lowest, he made a pact with Sebastian, a demon, trading his soul for revenge against those who betrayed him. Now, Sebastian is not just an exemplary butler but also Ciel’s ideal servant, executing orders and eagerly waiting for the day he can consume Ciel’s soul. As they tackle the mysteries of Ciel’s misfortunes, an unbreakable bond develops between them, impervious to the forces of both heaven and hell.
[Adapted from MAL]