This is my first story so please be nice with your reviews :) This story is meant to have smut in it so if you dont like it Ill try and warn you before hand, but please still read the story any way XD

I do not own Blue Exorcist but I do own Rini and Chiyo :)

I hope you like the story please feel free to tell me your honest opinions on it and if you think i should continue, I already have at least two more chapters written but I wanted to see how the reviews on this chapter would be. Thank you for reading :)

"So this is True Cross Academy" a young petite girl asked aloud

'Yeah, Kuro said that the Okumura twins live here and take exorcist classes' A small cream colored two tailed cat with bright blue eyes jumped up on the girls shoulders.

"Good I can't wait to get started! You ready Rini?"

'Yeah! Let's go Chiyo; I can't wait to see Kuro again!'

With that statement the two were off they began running towards the largest building in the school, they knew that in order to be accepted into the Academy's Exorcist Classes they needed to talk to the headmaster Johann Faust. 'I hope this is going to go as planned I really don't have the patience for any delays' Chiyo thought to herself.

"Sir Pheles, I don't believe that another week is necessary the demon has left Okinawa, so we have no use here" A young boy around 15 pushed up his glasses in annoyance around his bright sea-green eyes.

"Okumura-San, I want you to check around and see if you can get hints as to where the demon might have escaped to, he stole something important to me so we can't have him escaping now can we?" Mephisto was quite annoyed that this low level demon snuck into his office and stole his favorite umbrella so he sent the entire class of Exwires to chase after him.

"No Sir, I'll get everyone right on it" Yukio who was the youngest of the Okumura twins, but also a teacher at the cram school sighed 'I really don't want to be here for another week with Rin he gets so antsy when he can't fight….it can be quite annoying'

"Good, I'll give you one more week to find any clues as to where he is going" with that he hung up the phone before he could hear any retort

"What did that stupid clown say Yukio?" The older of the brothers asked as he started sitting up on his bed

"He said we have one more week to find clues as to where the demon went"

"Damn him, stupid clown" Rin complained as he stood to leave the room

Mephisto turned his chair around to face the window, it was such a nice day and he hated that he had so much paperwork to do. He began to stare at the clouds longing to feel the rays of the sun on his pale skin when his eye caught someone running towards his building.

"Hmmm I wonder who this might be" his eyes followed as the girl ran along the path.

"She looks mighty delectable Aniki" a smaller man hanging upside down eating a bag of potato chips concluded.

"That she does Amaimon, we might have to play with her a little bit" an evil smirk flashed across Mephisto's face

"She will be here in a moment Amaimon, go hide yourself"

"Aww come on Aniki I wanna play too!" The spike haired demon whined

"Later, we have to find out why she is here first"

"Okay" Amaimon left to hide in one of Mephisto's huge rooms connected to his office

"But your right Otouto she does look delectable" Mephisto smirked as he licked his lips while thinking about the young girl. His mind ran over the vision of the girl as she ran into the building out of sight. The way her black skirt stopped mid-thigh showing off her creamy legs, how the knee high heel boots accentuated those long legs even more. How her lime green and black halter top swooped down in the front showing off her luscious breasts; a black tattoo peeking out right above her cleavage *knock knock* 'oh how I would love to run my fingers through that beautiful green hair' *KNOCK KNOCK* Mephisto continued with his little day dream completely oblivious to the knocks on his door until "Sir Faust?" a voice called peeking through the now open door

"Yes, and who might you be?" He turned only to come face to face with the girl of his desires 'she looks even better up close' he thought to himself

"Well Sir Faust I am hopefully your new student! Chiyo Seika, what a pleasure to finally meet you" She greeted as she walked into the Headmasters office and shut the door behind her offering a wide grin in return.

"Hmm Chiyo Seika, interesting name little one. Now may I ask as to why you want to join True Cross?"

"Well Sir Faust I want to become an Exorcist, no I need to become an Exorcist, I'm already quite skilled in being a tamer this is Rini Tsukiko…." The cat demon on Chiyo's shoulders held up a paw and smiled "and a knight and I would be honored if I could continue my studies through your school."

Mephisto raised an eye brow obviously she wasn't a normal teenage girl "And why pray tell do you "Have" to become an Exorcist, little Chiyo?"

"My mother was killed by a very powerful demon, I plan to exterminate him, as well as help protect innocent lives so that other people won't go through what I've had to endure."

"And how are you so "skilled"?

"I think it would be easier to tell you my whole story if you don't mind I would like to start from the beginning"

"Go ahead" Mephisto waved for her to start propping his chin up with an arm on his desk

"Well after my mother found out that she was pregnant with me she decided to escape from my father and brothers believing that since I am the only female heir that they would have no problem abusing and breaking me however they saw fit, so she ran to Italia where I lived until two years ago."

Chiyo paused for a moment to see if Mephisto had any questions yet

"..My father found us and since he doesn't have an actual body here in Assiah he tried to take over my mother's body, which ultimately failed because even her half demon body couldn't withstand his power. I watched as my father took it upon himself to tear her limbs from her body after attacking me, that is when Rini here…" she pointed at her feline friend on her shoulder

"…Saved me, you see my mother never told me that I was part demon and she sealed away my demon powers so I couldn't do anything, so Rini protected me and got me away from my father before he killed me along with my mother. We ran for over a year before we were able to rest and that's when she told me about True Cross, she said that in order to become part of the Academy I would have to train hard! so for the next year I trained and was able to awaken my demonic powers finally and now here I am" she said grinning while scratching the back of her head

"What an eventful life you have had little Chiyo, so if you don't mind my asking who are your parents exactly?"

"Well my mother was the daughter of Mother Nature, and a human male named Daichi; as for my father well he's….well…you see…..he's…..uhm….Satan….."

A wide eyed Mephisto started laughing like a frog when Chiyo finally announced who her father was "And why, little Chiyo, would I want the daughter of Satan at my school?"

"Well Sir Faust I happen to know a few of the schools secrets…" Mephisto's eye brow shot up in inquiry "Don't worry I do not plan to tell your secrets I just hoped that one of them would help you understand how serious I am and how loyal I will be towards you and the school"

"What do you know little Chiyo?" He asked while he stood up to walk around his desk leaning on the corner closest to the chair in front of it "And please have a seat"

"Thank you Sir Faust, and I know quite a few things but let me just assure you before I venture to tell you what I do know that even if you do not accept me what I know will not leave this room, I just needed you to know that I know that I'm not the only special case here at the school….and with that" she sat down facing Mephisto crossing her legs

"I know that the Okumura twins are also the spawn of Satan and I know that they attend the school as well, I also know that the demon in the other room" she gestured towards the door that Amaimon went through "is in fact a son of Satan as well as the Demon King of Earth, and although I don't know your exact origin I know you're a demon as well and a very powerful one at that because I know that Amaimon serves you" she said with a smirk as Mephisto stared at her

'How does she know so much…..never mind I can still use her to help out my plans' he thought to himself "Alright how about this, I'll have Amaimon look into your story and see why all of this has happened to you, in the meanwhile you will stay here at True Cross! Your high school classes will start next month since it is still summer here, but your Exorcist or Cram School classes will start next week when the class gets back from their mission, how does that sound?"

"Oh Sir Faust that sounds wonderful! Thank you so much for this opportunity you won't regret it I promise!" she looked at Rini and smiled

"Amaimon get in here, I know your listening" Mephisto summoned

"Yes?" he answered as he opened the door sucking on a lollipop

"Im assuming you heard the whole story, I want you to return to Gahennah and find out what you can about why your father is hunting our little Chiyo" he grinned

"Okay" he said as he walked towards the front door of Mephisto's office he knew that if he retorted that he would be in trouble later and he wouldn't get to play with the new demon girl, so he decided to play nice

"Wait!" Chiyo called right as Amaimon opened the door. She stood up and turned towards him smiling "Amaimon, I would like to ask you a favor before you leave!" Both Mephisto and Amaimon raised an eyebrow, what could she have to ask him?

"I'm listening"

"I've spent the better part of two years hiding from Otosan I would like to ask that you not tell him I'm here, or I guess what I'm trying to say is please don't leave any evidence behind as to my whereabouts"

"Che' who do you think you are? Asking me to do something for….." Amaimon was cut off when Chiyo flashed across the room grabbing Amaimon by the throat extending her pointed fingernails so that they would dig into his throat as she raised him off the ground. Amaimon quickly looked at Mephisto but Mephisto told him to just to as she says mouthing the words 'later I promise Otouto'

"Fine!" Amaimon choked out, knowing he could easily get out of Chiyo's grasp.

Putting on a bright smile Chiyo gently put Amaimon down and hugged him burying her face in the crook of his neck. "Im sorry Ani-san let me heal you" she licked Amaimons wounds causing him to blush but his wounds disappeared even faster than they normally would. "my nails have poison in them, and the only antidote I know is…..uhm….my saliva….sorry if it was a little weird…."she turned around blushing as she walked back to her seat 'wow he really tasted good' Mephisto grinned at this exchange 'she is going to be fun to play with' and winked at Amaimon who then turned around and left 'wow she smelled amazing I can't wait to play' he thought snickering

"Sorry about that Sir Faust"

"Its quite alright little Chiyo, now any more questions before I show you to your dorm?"

"Only one, is there a place around here I can get a job? I only have one other pair of clothes and I don't have any food so I need to earn money to get the necessities you know?" scratching the back of her head in embarrassment

"How about this I will give you an allowance each week, as long as you don't cause problems at my school. And if Amaimon comes back with a pleasing report you can have a shopping spree to get a wardrobe full of clothes as well as any other things you might need before school starts, but remember this is only if you keep to your word earlier and keep your knowledge to yourself I can't have all my students knowing that the spawns of Satan reside right under their noses now can I?"

"Oh thank you Sir Faust! You're so amazing!"

"And please don't call me by that name, my real name is Mephisto Pheles, I only use Johann Faust for the public."

"Yes Sir Fau….*cough* Pheles" she grinned wanting to hug the man

"Alright let me show you to your dorm, you will be staying with the Okumura Twins in an old dorm, this way Yukio, and myself can keep an eye on you and Rin and make sure your new found powers don't become a problem okay?" he asked as he pulled out a large key ring and took off what looked like a house key

"Yes Sir" she took the key Mephisto handed her.

"Alright these keys are special and only Exorcist get them, they transport you from wherever you are to the keys destination for example this one will transport you to the front door of your dorm" he smiled "So put the key in the door, turn it to the left and open it and be amazed!" he expressed overly flamboyant

"uhm okay, like this?" she inserted the key and twisted it, and looked back at Mephisto who was standing rather close behind her. He smirked and nodded his head towards the door for her to open it. 'wow he smells good!'

'Hmmm I can hardly contain myself in front of this girl, oh how much fun we will have later' Mephisto smirked as he noticed Chiyos blush when she turned around

The door opened to a large cafeteria looking area instead of a hallway that had been behind the original door, Chiyo's eyes widened "Wow!"

"Okay this is the kitchen area, my familiar Ukobok takes care of the food, so I wouldn't step foot in there, it seems the only person he lets into his kitchen is Rin and that was only because they had a duel" Mephisto said chuckling recalling the wild food battle the two had. "Your room number is 313 and the Brothers room is 602, I'll be back to take you to go get clothes tomorrow around noon, how does that sound?"

"Sounds Great!"

"Alright I'll be off then" and with a poof of purple smoke Mephisto was gone leaving Rini and Chiyo standing in the kitchen area

"Hey Chiyo I'm going to see if I can find Kuro, is that okay with you?"

"Yeah go ahead Rini, I'm assuming you won't be back tonight?"

"Nah, I'll probably stay with him for the night to catch up, he might even have some Silver Vine Sake mmmmm!" Rini said licking her lips

"Haha okay have fun Rini, I'm going to go take a shower then probably hit the hay I'll see you tomorrow!"

"Bye" the small cat demon yelled as she jumped out of one of the nearby windows.

"Alright shower time!" she exclaimed as she headed up the stairs with her things "hmm?" Chiyo said to herself as she looked around on the floor 'I could have sworn I just saw a little spike headed rat run by here ugh I hope this place isn't infested!' she thought to herself as she continued towards her bath. 'That's right Imouto let your guard down' the small demon form laughed, waiting for the right time to start his game.