The missing piece

Chapter 1

The Girl

Disclaimer: I don't own KHR character... Only the OC and plot... I wish they are mine though... T^T

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27 June 2022

"Mom," a small four year old boy crawled up a lady's lap with her bright red eyes meeting his mother's own pair of ruby eyes. The lady paused her reading and put down the novel on her hand, offering a smile toward her first born, "Is there something wrong, little one?" she questioned her child gently as she caress the baby's chubby cheek with care.

"I found this, pictures of mom and dad when you were younger. There are so many albums of pictures too, can you tell me when it happened?" asked the child innocently, fluently regardless of his young age. Gazing at the first picture in the album that the boy brought, a soft giggle escaped from her lips as she answered.

"This-," her long finger pointed to a picture of a male back, barely hitting his 16th birthday, walking away toward a school with a pair of tonfa in his hands and a hint of smile on his face, "-is when I first met your father ten years ago," she answered softly with a fond smile dancing across her lips.

18 June 2012

"What is this?" A deep voice rang though the room, boredom coating his every word. The owner is none other the head prefect, Hibari Kyoya. His sharp obsidian eyes, midnight hair, and perfect posture are truly intimidating. Even the vice prefect is scared of this boy at times. He stares at the paper in front of him with nothing more than bored look across his face at the first glance.

"That is the application of a new transfer student that we have just received from the principal this morning," Kusakabe Tetsuya, the vice prefect, answered immediately.

Hibari scanned though the girl's profile and stared at the sight of weak and innocent looking girl that was smiling in the photo. He smirk when he look into the girl's eyes, her eyes are interesting... There is something he likes there. 'Is that determination…?' Hibari thought amused. But he frown when he notice something he didn't like. He didn't understand much of what he didn't like and all but he just hate it.

"It seems there is another herbivore that I'll bite to death," Hibari stated and without another word, Hibari stood up and began his morning patrol early today. Kusakabe continued to stare at the president until he closed the door before sighing.

'I hope the girl survive...' Kusakabe thought, already feeling sorry for the girl since he knew the meaning of the smirk plastered on the head prefect's face, but he couldn't stop it so why bother worrying about it? He has lots paperwork to deal with in the first place.

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"How come we have to bump with Hibari-san this early? Doesn't his daily patrol start when the bell rang?" Sawada Tsunayoshi, the tenth successor of Vongola mafia, asked with terrified look. He is one that can hardly do anything right before the meeting with a weird baby a few months ago. His spiked brown hair and gentle brown eyes really doesn't make him looked like a mafia at all, not that he ever wish to be one.

"Don't worry Juudaime! I, Gokudera Hayato, shall protect you and burn that stern guy with my dynamite if he even touches you!" Gokudera swore, eyes sparkling and burning with spirit. The silver haired and emerald eyed boy is definitely smart but his attitude is a bit too rough at times. Not to mention that his affection is mainly focused on Juudaime.

'That is exactly what I'm afraid of!' Tsuna thought sweat dropping while Yamamoto just laughed his carefree laugh. They did come to school together that day since some miracles happened to work and woke Tsuna up on time.

"That seems fun! I'll help you Gokudera!" Yamamoto Takeshi said happily. He is, in simple, a baseball freak, black haired and light brown eyed is handsome though. His passion for baseball is superb but he always depends on his luck too much even though his 'luck' helped him more often than not in the end.

"Oi! Why would I need your help? I can beat that guy by myself!" Gokudera roared angrily, glaring at the boy and already pulling his dynamite, ready to burn the baseball freak on spot. Fortunately for Tsuna, the school bell rang and the teacher came in time, saving him from more injuries like his usual routine.

"Everyone! It seems that we got another transfer student this year and in this class too. The student has yet to come but please treat her well," the homeroom teacher said after the students sat and quieted down.

"Oi! Another student? Is it your friend Gokudera? I think this should be fun," Yamamoto asked with a big excited smile while Tsuna looked scared instead at the thought of having another mafia while Gokudera shrugged uncaringly.

"How should I know? I don't really care with the other mafia anyway," Gokudera paused at Tsuna's frightened and panicked look, "Don't worry Juudaime! I'll protect you no matter what!" He finished confidently, hoping to reassure the boy and calmed his nerves.

"Hey! Outside! Hibari-sempai is going to fight a girl with weird uniform and a baby on her shoulder!" A classmate of them shouts excitedly as if it was the best news of the year. Everybody immediately scrambled toward the window, even the teacher, with mixed feeling of excitement and worry for the girl.

"She's pretty! Is that our new classmate?" A boy asked, already checking out the new girl with little to no shame as they began murmuring about the girl.

"Will she be okay though? Hibari-sempai is strong..." Another one said concerned. Unknown to them, Tsuna and Gokudera, followed by Yamamoto, were running to the entrance right when they spotted the baby on the girl's shoulder.

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Observing the building standing in front of her, the girl sighed in worry at the upcoming boredom. With no clue what so ever, she took the first flight she could found and submitted the necessary documents to enter this school for her single mission but due to jet lag and her habit of over-sleeping, she found the gate closed as the bell's sound echoed through-out the building.

"Oh my, I am late on my first day," the girl with soft fiery hair that is tucked into her hat and light ruby eyes said amused, hardly with any care. She wore white T-shirt and knee long black vest with glittering belt and chains on the side match well with her simple uniform. She also carried a school bag along with a hanging camera latched on her neck. She smiled readily when she saw a familiar mafia suited baby and ran toward him, jumping over the gate with ease.

"Hi Reborn, it's been a while since we last met, how's Juudaime?" The girl asked politely after a short bow, trained to make sure she has the manner in interacting with others. All her life has been spent to become the perfect mafia spy she is now, after all. Like it or not, she refused to ruin her reputation in front of the infamous Sun Arcobaleno.

"Ciaossu! The ninth send you to help the progress ne Rin?" Reborn asked back before he jumped and sat down on the girl' shoulder who was used to his actions by then, considering that this baby used to tutor her for a short few months. It was one of the darkest time of her life but, who was her to start being ungrateful? This devil taught and gave her the best training one could ever hope for.

"Yes and no... He did give me permission but I do this by my own free will... My service is hardly needed and... Nii-san has changed these days too..." The girl named Mitsuyuki Rin sighed, smiling sadly. Right after she took a few short steps into the school ground, she felt quite a murderous killing aura aiming to her from somebody on the school entrance that was advancing toward her.

A boy, not that tall, beautiful porcelain pale skin with heart shaped face, silky black hair, and sharp stormy greyish purple eyes. Beautiful is certainly suitable to describe the boy approaching her despite the cold glare. From the barely visible muscle and the way he walked with his weapon, she concluded that he is no ordinary middle schooler but his whole body was too tense to be good.

"Wow? Do you know him Reborn? He is strong... I see a great fighting potential from him...Is he in Juudaime's future family candidates? I think you should put him on your list if you hadn't," Rin said smiling toward the boy who glared at her even more. Rin whispered something softly before examining the boy even further.

"Your judging skill seems to improve Rin," Reborn replied with a smile. The boy stopped in front of her with stern eyes as he examined the new girl which -he note- was together with Reborn. The two stared at one another deeply before Hibari smirked with a tint of excitement filling his face.

"You are with that baby... You are strong with no doubt... But you are merely another herbivore..." The boy paused as he pulled out his tonfas, "And you are late so I'll bite you to death," and then he charged the girl instantly. Rin dodged it in time with a questioning smile, 'What makes him say that, I wonder,' Rin thought confused, not that it was fully wrong, she does eat veggies, but it was a tad bit awkward to hear it from him.

"You can dodge... You have the potential... But I'll still bite you to death for arriving late," Hibari stated with a dark smirk which turned into a small frown after a few minutes because he had yet to land a hit but he continued to try to hit the girl. Reborn jumped off from the girl and opted to watch from the side.

"Rin, that boy is Hibari Kyoya, the strongest fighter around here. Hibari, that girl is Mitsuyuki Rin, one of the S-class spies in Vongola under the Varia organization," Reborn introduced the two while sipping his tea, eating popcorn as well, that came out of nowhere, earning a sweat dropped from his ex-student.

Rin still dodged each attack right before it made contact with her skin just for the fun of it. She flipped back, dodged to the sides, jumped behind Hibari, rolled to the side, and some other defensive action but never attacked back. While dodging, Rin herself begin her further examination on the boy, she found herself greatly attracted to his eyes. She found something familiar there.

"Interesting... You manage to dodge all my attack but why don't you attack back?" Hibari asked amused. Rin looked at Hibari with a smile instead, choosing her word carefully and hopefully stopped the prefect from attacking. It was a gut feeling but something told her that this boy was actually more rational than he look, maybe anyway.

"I don't think I should... This is my first day and I want to make a good impression Hibari-san," She answered happily, an idea of making fun of him pop up but she'd rather not do anything extravagant, yet. From her information, it will be quite a feat to be friend this carnivore but oddly, she wanted to for no particular reason and from the look of it, she doubted that he'll let her walked away without a promise of a fight later on because she knew of his love for a good fight and understand it.

Hibari stopped charging and stared at the girl curiously, Rin thought for a bit before adding, "A spy didn't have a great short ranged battle skill but our guard and speed are one of the best to cover that," She smiled giving an excuse and flipped back when another attack towards her head, making her hat fall off.

Her long soft straight hair flew out beautifully as Hibari paused his attacks, what stopped him was not the beauty –mind you- but the serious determination with slight mischief dancing in her eyes, yet he still saw it, the thing he hate with no particular reason. "I see... You're different from that herbivore... But herbivore will still be herbivore... I'll bite you to death… other time," Hibari stated before walking back to the school entrance. Faintly, she could see his smile.

Rin looked surprised and somehow captivated by how beautiful the boy looked as he walked with a hint of pride and arrogance. Before she knew it, she had snapped a picture of the proud back walking away from her, accompanied with rains of Sakura petals. She snapped out of her trance when Reborn occupied her shoulder once again.

"Nee Reborn... He is supposed to be strong... he can hit me if he just go faster… did he master his weapon himself? That won't do any good in our world that way, and you know it right?" Rin said getting worried already, masking her previous emotion but she knew that Reborn smirks indicated that he knew and took note of it because not everybody can capture Rin's attention that way before.

"It seems that you are interested and interest him in both good and bad way, he has yet to train properly and he never really fought against a strong opponent like you or me... But that'll change eventually... Though you yourself are holding back, you won't be my student if you lose to someone like him now," Reborn said in a rather sly tone.

"But he has great stamina as well… I'm already starting to feel tired already… That Hibari-san is really something… thank god he's not trained yet… I could be dead if not…Or maybe it's just jet lag getting a toll on me," Rin complained sadly, "But his name could mean skylark, right?" she asked uncertainly, getting a nod either way. The two turned and walked to the school entrance when they heard a scream with Rin still thinking 'What an odd name for a bishounen,' and a snicker nearly escaped.

"You, the one that disturb the school peace and rules by skipping the class, I'll bite you to death," Hibari said before swinging his tonfa toward Tsuna and an outstretched hand followed, catching the attack effortlessly. It was her duty and main purpose for being there.

"You shouldn't, Skylark-san. You should stop attacking other instantly, you'll hurt Juudaime too," Rin said smiling as she used her newly found nickname for the boy, a fitting one considering that he consider himself as carnivore. She saw a tint of annoyance in his eyes when she called him 'Skylark-san' but she would not care. Enjoying other's anger was one way to ease her annoyance anyway.

"You again... I see that you are a part of this herd... I spare you this time but I'll bite you to death the next time," Hibari stated before walking through the hall. Rin stared at the confusing back for a bit before turning to Tsuna who looked both shocked and relieved with his mouth hanging.

"Are you alright, Juudaime?" Rin asked worriedly. The three boys stunned at the girl's aura. She looked much more beautiful up close, they admit –even Gokudera-, but her weak and gentle face really tricked them. Who'd ever know that a weak looking girl is winning against Hibari? A big surprise for sure. Suddenly, Reborn kick and stand on Tsuna's head.

"Don't worry about him Rin! He is quite used of being abused!" Reborn said smiling making Yamamoto laugh while Gokudare panicked. A knowing smile graced her lips and she nodded.

"I have felt your teaching method first hand so I am not that surprised, oh well. Hello everyone, my name is Mitsuyuki Rin. Nice to meet you, please call me Rin. I am sent by the Ninth to protect and helped the Juudaime to pass any coming odds alive," Rin introduced herself with a smile, big enough to make her look approachable and friendly for first impression's sake.

"Yo! I'm Yamamoto Takeshi! Call me whatever you want! Nice to meet you Rin! Do you like baseball?" Yamamoto introduced back with the same giddy smile. Gokudera sighed in annoyance before introducing himself begrudgingly.

"I'm Gokudera Hayato," he introduced, grunting. Rin blinked before beaming, she knew them since before she ever saw them but for a girl, innocent face is quite useful.

"Then… I'll call you Takeshi and Hayato. I've heard about you two from Reborn's report and I'm planning to join some club, then baseball team sounds good, I need something to keep my body fit and since you are there then it shouldn't be a big problem. Hope you can help me Takeshi, I can train with you too Hayato-kun," She said happily. The more friend the happier she will be, more entertainment she will get as well.

"Oh? Takeshi? Well, nobody really called me that beside my old man but feel free to call me that," Yamamoto said laughing happily while Gokudera blew up.

"Who gave you the permission to call me that? Stupid girl!" Gokudera yelled angrily, Rin, who readily put a mask of weak girl, just pouted at the reaction. The bomb man was famous around Italy of his short temper and battle skill but she never knew he was that easily provoked.

"Okay, fine. Gokudera-kun right? Yoroshiku," She greeted happily, silently wondering when will they warmed up to her and let her drop her mask. It was another part of the Ninth order to let them think less of her, weaker and stupider than she really is, until she deemed them as close friends and strong enough for unknown reason. She turned to the still wincing Tsuna with a sympathetic smile at the sight.

"Juudaime, I'm here to observe and help you train, and I shall assist you when critical situation arises as well. As long as I am permitted," Rin said smiling warmly and it somehow made Tsuna feel relieved. Knowing what the boy was thinking, Reborn kicked him again.

"Baka-Tsuna! Don't you ever think you'll be fine. Your critical judgement is diferent from her critical situation means and she won't help you out through your training but she might even be your opponent baka-Tsuna!" Reborn said before stepping Tsuna's head, again. Tsuna and Rin winced at the loud thump and –for Tsuna- the deep pain he felt.

"Quit it Reborn! I haven't even introduces myself!" Tsuna shouted angrily as he stood up.

"Are you alright, Juudaime?" Gokudera asked immediately panicking again but then again, he can't fight reborn unless he wished for an early death of course.

"Hai, I'm fine... Thank you Rin-chan, you saved me from Hibari-san's attack... My name is Sawada Tsunayoshi but please call me Tsuna..." Tsuna introduced shyly, Rin beamed before nodding.

"Alright then, shall we go back to the class now? I have yet to introduce myself to the class... I still wonder how to get cozy with the class though..." Rin said sweat dropping. Yamamoto laughed as usual while Gokudera has started saying, 'another perky people...' They chatted a bit before they arrived at the class door. They somehow didn't move an inch.

"Hey, you guys go first. I'll enter afterwards," Rin said before pushing them in, first rule upon being a transfer student, grand entrance was needed, blame Reborn for making her so dramatic. Reborn has gone to one of his hiding place by the way. After counting to ten, Rin walked in with a sweet smile.

"Hello everyone, my name is Mitsuyuki Rin. Please call me Rin though, nice to meet you all," Rin introduced herself again cheerfully –a small helpful advice from Yamamoto- with big bright smile. Most of the boys blushed at her smile, typical, and the girls started to whisper things too, a good sign perhaps.

"I am quite the hyper type so bear with me 'kay? Hope we have a good time everyone," Rin continued still with a big sweet smile. How pleased Rin is to know she got the chance to manipulate the class, she was quite a smart kind, but in a bad way. She admitted it, at least.

Her blood red eyes met Tsuna's still shocked eyes and she smiled.

And so, their journey together begins.

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Finally edited the first chapter and I've re-realized how horrible it was…

The grammar… haha, no comment! I hope I won't have to re-do this again

icecream flies: no worries, I know my grammar is horrible (I won't be struggling to pass my English exam if not :'( ) but I still hope you understand the story, it's crappy but I tried to double check the grammar and I think this one is okay, or so I hope

I will try to edit a chapter a day until the latest chapter, I'm working on the next chapter too, halfway done :D

R&R!