Life for Ciel and Sebastian got complicated after Ciel became a demon and Sebastian was stuck to serve him forever. Ciel and Sebastian had always had a kindling love for each other, Ciel had the perfect seductive butler and Sebastian had the perfect tortured soul to devour. But their relationship halted when Ciel no longer had a soul. Ciel and Sebastian 10 years later still looking as young and charming as they did before had taken up a new estate in southern France for there were many tortured souls there from the rule of the absolute monarchs. There was a whole new staff of servant assassins. Sebastian would go fetch people that needed favors and Ciel would get first go at their souls, leaving the scraps for Sebastian. This would have been a nice calm time if not for Sebastians growing hunger. You see, he had waited patiently for Ciel's soul, not eating until he had it and then he didn't get it.
One day Sebastian was out getting another person to form a contract with Ciel. He walked the awful streets of the poor side of France and came upon a young boy and a young girl. The girl seemed to be about 16 years old and her little brother looked to be about Ciel's age. They were sitting together, huddled, their skin loose on their bones. Sebastian caught a similar scent, they were children like Ciel, they gave off the scent of ones who have lost someone very dear in their life and were looking for their way to crawl out of their filthy hole to enact revenge. Two delicious souls for the price of one, thought Sebastian.
"Excuse me, I am Sebastian Michaelis, butler of the Phantomhive estate, my master is very kind and would love to take you into his estate and give you proper meals, you look very hungry."
The girl looked up and Sebastian caught a glimpse of her emerald eyes, he wanted her, even more than he wanted Ciel. "Thank you very much, it's a blessing. Come on brother, we are going to get some food now." They could barely stand so Sebastian swooped both of them off their feet and carried them. "You are so very kind." The girl then rested on Sebastian's shoulder and Sebastian demon sprinted to the Phantomhive estate.