their master

Rimuru Phantomhive, the earl of the Phantomhive household. Known as the queen's guard dogs, he and his younger brother, Ciel Phantomhive run England's underworlds despite their particular circumstances. Of course, there are many secrets that this household keeps, and fortunately, their ever faithful butlers are always there, ready to do their masters bidding perfectly. Too perfect to be human? After all, only those crazy enough to accept the queen's dirty work without hesitation are also the ones who would use everything they can have, even if it means selling their soul to the devil themselves