Ciel is tiny he's 13 yo, gray hair shaded blue, his left eye is blue and the right purple with a pentacle, symbol of his pact with Sebastian, Ciel always wears a black eye patch hide the mark of his pact. Sebastian takes on the appearance of a tall adult with black hair, red brown eyes, he's pale. Sebastian is a demon. They live in the Phantomhive's Manor, Ciel and marquise Elizabeth Midford are fiancé, he's allergic to cats and rather dogs, but Sebastien who love cats and hate dogs. SFW