In Victorian-era London lives the young boy, Ciel Phantomhive. On the night of his tenth birthday, a fire engulfed his manor, his parents were murdered, and he was captured by cultists. After a month of enduring excruciating and humiliating torture, Ciel returns to the Phantomhive household with an enigmatic black-clad butler, Sebastian Michaelis. To others, it seems that the butler is simply the best at his craft, from anticipating his young master's needs to carrying them out to the best of his inexplicable abilities.