Sorry everyone! I uploaded the wrong file!

This is my first Kuroshitsuji fan fiction. I hope you guys enjoy!

The young earl Ciel Phantomhive was in his office doing paperwork. Ciel was getting very bored and annoyed with the tedious work. He rang the servant's bell and continued to work as he waited. After a moment, there was a soft knock on the door.

"Enter." The door opened to reveal the earl's faithful demon butler Sebastian.

"You rang, my lord?" Ciel didn't look up from work as he addressed the man.

"Yes. I'm bored. Bring me my tea and something sweet. Something with chocolate."

"Bocchan, you really shouldn't spoil your appetite with sweets. Your guest will be arriving soon for dinner." The boy hated when Sebastian denied him his sweets for any reason. He was suppose to be his servant, not his mother.

"I don't care. I want something sweet now." The demon simply smirked.

"With all do respect, master, I must advise against it." Ciel was in no mood to argue with the demon. He put down his pen and leaned back in his chair, finally looking to the crimson-eyed servant.

"Fine." Sebastian wore his award-winning smile smugly. Ciel rolled his eyes at the butler. Damn smug demon, he thought.

"Will there be anything else, sir?" Ciel thought for a moment. He had been in his office since breakfast. He hadn't seen any of the inhabitants of the Phantomhive manor since early morning. There was one person in particular he wondered about at the moment.

"Where is Celia?" Sebastian thought for a moment. Where had he last seen the child?

"I do believe the young mistress is in the garden again." Ciel figured this. She was always outside. She didn't like being cooped up in the manor all day. She was the opposite of the young earl. He stood from his chair and walked around his desk to the door.

"Very well. Continue with the dinner preparations. We must show the full Phantomhive hospitality. Make sure nothing goes wrong. Do you understand?" The faithful butler placed his gloved hand over his heart and gave a bow.

"Yes, my lord." Sebastian followed his young master out of the office, closing the door behind them.

"Good." As they walked down the hall, Sebastian gave a knowing smile.

"And how will you occupy your time until then?" He already knew the answer, but he liked to tease his bocchan from time to time. Ciel knew this and hated it. If it wasn't for their standing contract, he would've gotten rid of the demon long ago.

"Do I need to repeat my orders, Sebastian?" This only made the demon smirk smugly once again.

"Of course not, my lord. I will see to the dinner preparations at once." The butler turned and left towards the kitchen. Ciel rolled his eyes again as he made his way out to the garden. It didn't take him long to find who he was looking for. He found young Celia among the rose bushes. Her long dark hair donned with small cat ears stood out among the bright flowers. He approached the girl from behind and covered her eyes.

"Guess who?" The child gasped and giggled.

"Onii-chan!" She turned and hugged her big brother, her long tail swinging back and forth. Ciel gave a little smile.

"How is my favorite little sister?" She pulled away and look up to him with her large, dark blue eyes.

"I'm your only little sister!" He chuckled as he scratched behind the seven-year-old's cat ears.

"And that's why you're my favorite." The young cat girl started to purr. Even Ciel, who hated and was also allergic to cats, had to admit it was adorable. He had long stopped questioning why he wasn't allergic to his cat-girl sister. "How was your day? What did you do?"

"I had my Japanese lessons with Mr. Sebastian, then I took a nap under a tree, then I had lunch with everyone, then I came to the garden to pick flowers. Oh! And I know what I want to call myself!" Ciel knew what she meant, but decided to tease her a bit.

"What to call yourself? You're called Celia, aren't you?" Her ears flattened on her head as she pouted.

"Onii-chan! You know what I mean!" He chuckled at her cute expression.

"I know. What did you decide?" Her ears and tail perked up.

"Well, today in my lessons, I learned that the Japanese word for 'cat' is 'neko' and it sounds so cute! I want to call myself a neko!" Ciel smiled at his little sister. He was happy for her. Since she acquired her cat features, she had been very adamant about giving what she was a name. Now that she found a name for herself, she would be happier.

"Well then, you are a neko now." Her tail swung back and forth happily as she giggled.

"Yay! I'm Celia the neko!" He petted her head again. Ciel truly loved his little sister. She was the one family member he didn't lose that day. He treasured her. She was his only reason to smile anymore. Even Elizabeth couldn't make him smile like Celia did. He was still happy to have his fiancee in his life. He just wished she wasn't so hyper and always invading his personal space.

"Master." Celia squealed in surprise and her tail frizzed up as she heard the new voice behind them. They turned and saw Sebastian right behind them.

"Sebastian! You scared me! Don't do that!" Sebastian wasn't the least bit surprised by the young girl's reaction. In fact, he expected and anticipated it.

"I am sorry, young mistress. Please forgive me for my rudeness." She pretended to pout.

"Maybe I will, maybe I won't. What did I say you had to do last time?" Sebastian gave a genuine smile.

"Of course, mistress." He used his teeth to remove one of his gloves and held it in his other hand. He then proceeded to scratch behind the young girl's cat ear. Celia loved to be pet by Sebastian. His hands were magical. She purred as he scratched the perfect spot. Ciel didn't like that his little sister allowed the demon to pet her like she was a real cat.

"You shouldn't allow the servants to pet you so casually, Celia." She pouted at her brother.

"Hey! I don't just let anyone pet me! Finni scratches too hard, Bard is too rough and Mey-Rin hurts my ears. Sebastian is nice." Ciel rolled his eyes once again. A nice demon? How preposterous.

"What is it, Sebastian? I'm sure you didn't come out here just to pet my sister. By the way, stop it." He reluctantly pulled his hand from the cat girl's hair, much to her own dismay. He put his glove back on. Celia always thought it was odd that he had black nails, but never said anything. If he wanted black nails, it's fine with her.

"Your guest has arrived. He is waiting for you in the drawing room."

"Fine. Are the dinner preparations almost done?"

"Of course. Everything will be completed as scheduled."

"Good. I guess I mustn't keep him waiting any longer." He started to follow Sebastian back inside. He then noticed that Celia wasn't following them. He looked and saw she stayed where she was. "Come along, Celia. It would be rude for you not to greet our guest."

"But...What if he doesn't like me? What if he thinks I'm weird?" Her ears flattened on her head. This was something she thought anytime anyone new came to the manor. She was perhaps the only "neko" in the world. She always thought people would think the worst of her because of what happened to her to obtain her cat ears and tail. Ciel walked over to his beloved sister and placed a hand on her head.

"Has anyone ever said anything to you that was negative about them?"

"Well...no."

"Then what makes you think this time will be any different? You're not ashamed of your appearance. Why would you think others would? Besides, you're a Phantomhive. No one would dare insult our family name." If his words didn't reassure her, his rare smile did. She knew he didn't smile that much anymore after what happened. She knew he wasn't that happy with life anymore, but he always put on a smile for her. Her ears perked up as she smile.

"Okay, onii-chan!" He took her hand in his and they went inside. Sebastian thought it was interesting to see his bocchan interact with his younger sister. It was like he was a completely different person. The demon was intrigued to see his master's softer side that was only reserved for his sister and, depending on his mood, Lady Elizabeth. He wondered how those two parts of him would affect the quality of his soul. They entered the drawing room and saw a man was waiting in one of the armchairs. He stood as they entered. He was a tall well-dressed man with slick black hair and brown eyes. Sebastian introduced them.

"Mr. Chance, may I introduce the earl Ciel Phantomhive." The man shook Ciel's hand.

"It is nice to finally meet the earl Phantomhive in person."

"Likewise, Mr. Chance. I'd also like for you to meet my younger sister, Celia Phantomhive. Celia, this is Mr. William Chance. He is the overseer at the factory in France." She curtsied.

"It is a pleasure to make your acquaintance, Mr. Chance." The man chuckled. Something about the way he chuckled rubbed her the wrong way.

"What a charming and polite young lady. And very impressive cat accessories. They look very nice on you, my dear." Her tail flicked back and forth warningly, but she kept her smile. Both Sebastian and Ciel caught sight of this, but kept calm.

"Thank you, but these are not toys. They are quite real." The man's eyes widened in surprise. Seeing her tail and ears move convinced him. She caught a glimpse of something in his eyes for a split second, but she wasn't sure what.

"My, my. That is quite amazing. Would you mind telling how you acquired those?"

"Perhaps over dinner, Mr. Chance. For now, I shall leave you and my brother to your business discussion. Please excuse me." She gave a little curtsy before leaving the room. Something was off about the man. She knew it, but she couldn't tell just what yet.

Dinner was ready and everyone met in the elegant dining room. Sebastian served an exquisite seafood medley wine a champagne that would complement the special sauce. On the surface, it looked like everything was prepared perfectly. Of course, the servants made mistakes that Sebastian fixed. The dinner was improvised and turned out perfect thanks to the very able butler. Mr. Chance examined Celia as she thoroughly enjoyed her meal.

"It appears you are very fond of the dinner, my dear. Did your love for seafood grow because of your features?" Her tail started to flick back and forth again, but she still kept her composure.

"Yes, it has. I also love Sebastian's cooking. It's always so amazing!" Sebastian smiled.

"You are too kind, mistress. If I couldn't prepare a perfect seafood medley, then what kind of butler would I be?" Mr. Chance was very interested in the young "neko", as she now called herself.

"By the way, perhaps you could share the story behind your appearance. I am very interested in it. It must be quite a tale."

"I mean...I guess. I..." She looked to Ciel for approval. She knew she had to be careful of how she behaved around his business partners. She didn't know if telling that story would be appropriate. He met her gaze and knew what she wanted to ask.

"You may tell it if you wish, Celia. If you're uncomfortable, you do not have to." She did feel uncomfortable, but she still felt something off about the man. He may not leave the matter alone if she didn't tell him. He couldn't really do anything with the information.

"Well, when our parents died, Ciel and I got separated. I was taken by scientists. They were experimenting, try to make hybrids of people and animals. They didn't work a lot of the time and if they did, it didn't last too long. Then they got it right with me and now I'm half cat. Because of that, I escaped and I found my brother again. I didn't like it there, but I like being part cat! It's fun!" Mr. Chance was intrigued.

"I see. That's very interesting."

"Yeah, it's a money making idea for sure. We could make billions off of this...Don't worry about that. All we need is the brat...You let the scientists figure that out...Alright...I meet you up there in a week and we'll further discuss it." Mr. Chance hung up the phone and left the small room. He made his way out to the entrance hall and started to make his way up the stairs. He was startled as he saw Celia standing at the top. She smiled at him.

"There you are, Mr. Chance. I was afraid you got lost." He gave her a fake smile as he continued up the stairs.

"Really? And why would you think such a thing?"

"Because guests have gotten lost before. You don't know your way around, I want to make sure you get to where you need to go." He made it to the top and stood before her.

"Is that so? Well, you are a kind hostess." He placed a hand between her ears and petted her. She snapped and bit his hand. He screamed and retracted his hand. He saw the bite broke the skin and he was slightly bleeding. "YOU LITTLE BRAT! YOU BIT ME!"

"Don't touch me! I'm telling my brother!" She then ran off down the hall.

"Hey! Get back here!" He ran after her. He turned a corner and ran into something, knocking him to the ground. He looked up and saw Sebastian.

"Oh dear. Running in the halls? That's quite inappropriate for a guest to run the halls of the manor." Mr. Chance got back on his feet.

"That...That little..." Sebastian's observant eyes caught the bite mark on the man's hand.

"Oh my. It appears you've been bitten by the young mistress. That's rather odd. She's not one to bite very often. You must have done something to really upset her for her to want to kill you." His eyes widened at this.

"K-Kill me? What do you mean kill me?"

"She bit you and broke the skin. Her bite contains a very poisonous toxin. Rather deadly. If treated soon enough, you could live. I happen to have the skills to treat such a bite."

"Then what are you waiting for?! Help me!" Sebastian thought for a moment.

"Of course, if it is my mistress's wish for you to die, then I cannot help you. If I defied my masters' wishes, what kind of butler would I be?" Mr. Chance could feel the bite start to sting and burn.

"I've got to get out of here! I don't want to die!" He turned and made his way back down the hall. The pain started to spread up his arm. Sebastian followed behind him.

"It would be rude for you to leave before the dessert is served. Tonight, we have a strawberry cheesecake with fresh strawberries picked from our gardens. We also have fresh lemon meringue pie if you prefer something a little less sweet." The pain shot to his shoulder and his legs suddenly became weak. They completely gave out when he reached the stairs, causing him to fall down the flight. Sebastian stood over him. "Come now, sir. The master would be disappointed if you didn't receive the full Phantomhive hospitality."

"Y-You're crazy!"

"I assure you, I am not crazy. I'm simply...one hell of a butler."

"I see. You bit him because he tried to pet you." Her ears flattened.

"I think I may have poisoned him. I did it again. I'm sorry." Ciel gave her a small smile and gently stroked her head.

"It's alright, Celia. He had it coming, after all."

"Huh?"

"He has been stealing profits from the company for the past year. He also wanted to kidnap you so he could find out how to make others like you. He deserved what he got. That should teach him to mess with the Phantomhives." Celia knew there was something off about the man. Now she knew what it was, but she still felt bad.

"But...I don't want him to die. I might have killed him." Ciel knew his sister hated the thought of killing people. She hated any sort of violence or gore. He kept her as far away from it as he could.

"Don't worry. Sebastian will take care of him. He knows what to do." It made her feel better that Sebastian would handle it. She knew Sebastian could do anything.

"Well, okay! Can we have dessert now? I've been smelling Sebastian's strawberry cheesecake and I want some!" He chuckled at his adorable neko sister.

"Of course."

So...This went on longer than intended, but I hope it's still good. There were so many changes made from the original idea. Let me know what you think of this version. No flames please.

Also, if you have a prompt that you would like to see, leave a review and I'll see what I can do.