Hey everyone, and welcome to the first chapter of my first ever story, The Seal of a Demon's Mate. I don't know when I would've posted this if it wasn't for the kind encouragement of Poetgirl616, thank you for the encouragement. This is an AU with an OC so I'm warning you now, don't like don't read, also the chapters are going to vary in length so don't complain please!

Disclaimer: I do not own Black Butler (Kuroshitsuji) or any of the characters.

Now, on with the story!

Chapter 1: New Teachers

Anaria Lenair studied herself in the mirror of the bathroom she and her dorm mate shared, glad she was still asleep. Her hair fall to her waist in a sheet of ebony with her side swept bangs falling lightly in her bright, soul-searching eyes that most would swear gave off a light of their own. The black and dark purple uniform she was tailored to hug her body and accentuate the curves that had the boys going crazy over her, not that any were brave enough to go near her; and made her pale, porcelain-like skin seem almost ethereal. The one blemish on her smooth skin, though she didn't see it as such, was a mark on the left side of her neck in the shape of a pentagram.

With a sigh she pulled out some bandages and wrapped them around her neck throat as she did every morning for as long as she could remember to hide the symbol that both her deceased birth parents and her adoptive parents didn't want anyone to know about. Truth be told, Anaria herself was actually rather found of the mark despite the demonic association with it, but she knew that was why she had to hide it. She wasn't the only one with such a mark which helped some, but she just really hated hiding it.

She gave another sigh after she finished wrapping it and looked into the mirror to make sure it was properly covered and was very tempted to rip the cloth strip away, no matter the consequences; but she restrained herself and picked up her fencing gear before heading out to breakfast.

Upon arrival, she joined a boy her age with blue-grey hair and deep blue gemmed ring, the color of which was only matched by his one visible eye, the right being covered by an eye patch. Even so, Anaria knew what her adoptive brother, Ciel Phantomhive, had hidden under the covering. The eye he shielded had a pentagram over the iris, though the design was different from hers, and the iris was a light purple close to lilac. The two sharing this mark that their family so greatly disliked had made them fairly close seventeen year olds who told each other almost everything.

"Hello, Ciel, any news from home?" she asked as she sat down across from him.

"Same as usual; we're proud of how well you're doing, the two of you need to socialize more with people other than each other, don't let anyone see the marks." he replied in a bored tone though Anaria could see the annoyance in his eye while he pushed his food around his plate.

Another sigh escaped Anaria's lips as she pulled her sketch book and colored inks out, drawing idly as she tuned into the conversation at the table behind her.

"Have you seen the new teachers yet?" a girl asked, excitement lacing her voice.

"Yes I have, they are quite handsome; I would love to be courted by either one!" another answered dreamily.

"Do remember you already betrothed to me." a boy said in annoyance, obviously not liking the thought of his fiancé mooning over another.

"We can still dream." the first girl said lightly.

"It's too bad there isn't any girls in their class." the other sighed sadly.

"Oh but there are." a second boy said as he sat down, "Elizabeth Midford and Anaria Lenair both attend."

"Oh, I always forget that Lizzy attends classes such as that!" the second girl exclaimed.

"I can't really consider Miss Lenair the same way. She's as quick witted as heir Phantomhive and easily surpasses the boys in terms of athletics." the first mentioned breezily.

"That is true, no one has beaten her yet." the first boy agreed petulantly.

"Why does she even take such courses? They are most definitely not lady-like skills to have." the second boy said in annoyance.

Anaria tuned them out again, marveling at how they didn't notice she was right there as they began to talk about her with distain like that and not really wanting to listen. She looked at the picture she had drawn and saw that it was half the face of a man she had never met, though she had drawn him many times. There was a spider web in the background and she sighed for the fourth time in an hour and a half before putting her things away again.

"Is something the matter?" Ciel asked.

"Not exactly…I drew him again, that's all. So, it sounds as if we have new teachers in one of our more male oriented classes." she informed him.

"Considering our fencing teachers quit over the weekend I'd assume they will teach it."

"Sounds plausible. Let's go, I want to get in a quick warm up match before class."

Ciel sighed, but still followed his sister out of the dining hall, knowing that it would do no good to refuse or even argue.

Their pre-class warm up went the same as it always did, Anaria won by a large margin, not even breaking a sweat unlike her brother.

"You're too tense, Ciel, it's slowing your reaction time. You need to flow with your blade, it is an extension of you. When a spider spins it's web it can't go too fast or the strands it's weaved already will break, nor can it go too slow least it not reach where they are to connect. You have great strategies, but they're useless if you can't perform the moves fluidly enough to carry them out." she said exasperatedly as the other students began to file in.

Ciel glared at her and wiped some sweat off his forehead just as the two teachers entered.

"May I have your attention, everyone?" a velvety voice that reminded her of honey asked, prompting the students to settle down and listen.

Anaria gave the man who was speaking a quick once before deciding to actually study him. He had black hair that came to his chin in the front but only the nap of his neck in the back, gently framing a pale face that had a mischievous smirk and glittering crimson eyes the color of spilt blood that she found rather odd. He wore a white dress shirt with black slacks and while she could admit he was handsome, he wasn't her type.

"My name is Sebastian Michaelis and this is Claude Faustus, we are the new fencing teachers." he said as he motioned behind him to his left.

She allowed her gaze to drift in that direction and a gasp escaped her at the man her silver orbs landed on. He also had black hair though his was stylishly mused, as if he was constantly running his fingers through it. His pale face had a look of bored indifference as he looked over the group he was to teach with cold, apathetic gold eyes that were framed by rectangular glasses with silver rims. He was dressed much the same as Sebastian, though his shirt was black instead of white. There was no denying that he too was a sight, but that wasn't why she had gasped. No the reason for that was that he was the very man she kept drawing.

His eyes met Anaria's, causing a shiver to trip down her spine for a reason that she couldn't identify, not that she was sure she wanted to try.

"Split up into pairs, we need to see how much of a grasp your last teachers managed to teach you." Claude said without emotion.

His voice matched him well, Anaria thought idly. It was deep and rich, reminiscent of dark chocolate in its smoothness and just as blank as his expression; and yet she could detect a hint of dark promise in its continence that made her want to melt, not that she showed it.

She and Ciel turned to each other and she asked, "Are ready for another match or would you like to rest for a little longer?"

He scowled at his sister in annoyance. She knew he needed longer to recover after the last one they had. Sadly, his expression only drew a chuckle from her which caused him to sigh in exasperation.

It was about half way through the class before the teachers realized that the two siblings hadn't crossed foils yet and so approached the pair.

"Are you two unwilling to show us your faults in this sport?" Sebastian asked with a clearly false polite smile.

"Actually we arrived early and had a match before class so we needed a rest." Anaria said, her tone implying that she and Ciel were better off on their own.

"Oh? You do so poorly that you don't wish for the others to see?" Claude asked blandly.

At this the other students slowed, any match becoming less than half-hearted pretense as they watched the confrontation they knew his words would spark.

"Would you like me to demonstrate my abilities?" she asked, voice light as a breeze.

At this Ciel cut in, "Anaria, perhaps we should participate in a match together."

His sister ignored him, instead looking straight in the golden orbs Claude had for eyes, piercing them with her own silver which glittered with challenge.

Sebastian looked between the two before turning to Ciel, "Well, as you seem ready for the task, why don't you demonstrate your abilities for me?"

The young heir turned pleading eyes to his sister who didn't so much as glance at him, causing it to darken and he muttered that he would get revenge before saluting the crimson eyed teacher.

Having seen this from the corner of their eyes, Claude and Anaria saluted each other and so the two matches began.

As soon as that happened, the other students stopped all pretense of continuing to face each other and it wasn't long before Ciel and Sebastian were forced to stop as well due to the intensity of the other pair. Neither was giving the other an opening that would end the match, it was almost as if they just knew what the other was going to do before they could even do it.

Finally, when only ten minutes remained of the class, Sebastian raised his voice and called, "It's time to put up the equipment."

This caused the pair to stop, foils crossed inches from their faces, as they glanced at the other teacher from the corners of their eyes. Claude and Anaria met eyes once more before they backed away calmly, as if their previous intensity had never been, before saluting one another once more and putting away the items.

Anaria glanced at the Claude and Sebastian one last time before grabbing Ciel by the arm and dragging him from the room.

AN: So, what do you think? Is it worth continuing? I hope you liked it and would greatly appreciate some reviews as this is the first story I've written and posted on here. Tell me what you think and ask me your questions but please no hating on me, constructive criticism is welcome and even encouraged but don't be nasty, please. Thank you for reading!