When Sebastian and Ciel attend a masquerade ball at the Trancy estate, it becomes clear that young master Phantomhive has lost his memory. Later in the evening, Ciel is lured away from the party for an eerie encounter with Alois.

Sebastian and Claude compete for the affections of their masters while attempting to navigate a treacherous labyrinth! Meanwhile, a struggle between two tortured souls rages deep within the mortal form of Ciel Phantomhive.