Hi there! Thanks for taking the time to click on and read this story. This story is exploring my ideas on what could happen if the contract between Sebastian and Ciel is 'successfully' completed. Now, while this follows the manga, some elements are inspired by the anime; mainly the effect of souls on demons. I'm also trying to explore the idea of soul mates, as hinted by the summary and title. One more thing: I don't own Kuroshitsuji, and if I did, it'd probably be a whole lot different.
The demon felt…full. It wasn't a satisfying fullness either. Only days after feasting on an exquisitely delectable soul, he now began to realize that he was feeling most peculiar. He was floating through the hollow emptiness of the In-between, relaxing after a quite headache inducing time of his immortal life. He thought back to the events of the past few human years. He had been hungry, but not overly so. It was a tolerable hunger, and he could have gone several more years without eating if necessary. So, what was this strange new feeling?
Perhaps the soul was resisting. The demon thought on his meal. What was his name? Chandler? Chris? Silas? Oh, he didn't care anymore. He was a most delicious soul, and he had accepted his fate with dignity. The demon couldn't imagine the boy fighting back much.
However, after thinking of the boy, the demon's mind began to wonder. He thought of the events of the boy's life, the people he met, the ones he killed, the ones he served, and of…
The demon's mind stopped on one person in particular. Trying to think further, he found himself unable to think about anyone else. This one person consumed his mind. This…female. His mind was clouded, and he could not see her face. He tried to think of a name. None seemed familiar. Adeline? Mary? Sarah? She was more difficult to remember than the boy. But, why was he trying so hard to remember her? Her soul couldn't be that appealing, otherwise before he left he would have been sure to remember her name and face.
He gave up trying. It wasn't important anyway. He would rest a little while longer, then return to the human world for some "fun."
However, the female once again entered his mind. Now he was frustrated, and quite frankly, angry. Could it be that she was the cause of his uneasiness? He inwardly rebuked himself for the possibility of letting a human female take over his senses this way. To try to get himself some relief, he attempted to look into the soul he had devoured to see if he could remember her.
To his alarm, he could not see into the soul. This distressed him greatly. He was full, so the soul should be there. It was there, but untouchable. Now the demon was frightened. Why could he not read this devoured soul's memories? He'd done this to others several hundreds of times before, but why not this one?
After hunting desperately for some sign of it, his confusion was made clear. The boy's soul was a – No, it couldn't be that. The demon suddenly fell into despair, something he hadn't done since the Day of the Fall.
Emotions wafted over him. He could feel emotions that he never could before. Memories of his life, all of his life, also surfaced. And this poor demon, for the first time in his seemingly perfect, rebellious life, cried in agony. He now saw all of his deeds: his clever schemes, his temptations, and his sins.
The boy's soul, despite its delectable corruption and delicious hatred, was one of all demon's most dreaded souls: a Soul of Life.