This might be unusual, but I've decided to give it a go. It's a love story between two unlikely characters, Rosie and Sebastian Michaelis. Ciel and Elizabeth take a trip to France on business, not pleasure but pleasure finds Sebastian, or... she does. He meets an old friend Rosie. The two have met a couple years ago. The two become involved in a series of murders described as La Noirceur (The Blackness) because the victims turn to ash, black ash that no one has ever seen before. It has led Sebastian to France. Sebastian finds himself conflicted by trying to be a butler and a boyfriend.