The Missing Piece

Chapter 3

Another baby? Young love?

Disclaimer: I don't own the original character… but I have their miniature at my room! At least I have them…
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7 October 2011, Rin's Apartment

"Morning already…" Rin mumbled waking up. She looked down with a blank expression, "Kei..." she mumbled again before slapping herself hard. Even her cheeks are slightly swollen because of it. She giggled slightly and ended up smiling to herself.

"Well! I got to get ready to school after all!" She said happily before skipping toward the bathroom. She is living alone and her brother is on the worst state. The only time she can have fun is when around Juudaime. The real reason she came and stays in Japan is to judge and help the next Vongola head after all. 'Tsuna has the kindness for sure… the tolerance and the will for other… which nii-san lacked… but his power is…' Rin paused brushing her teeth and stare at her own reflection sighing, 'Let's hope nii-chan won't go all out… doubt it though.'

"Are… what time is- What? It's seven already? I don't want another morning practice," Rin whine, running toward the school in high speed she use her short cut this time. The normal route is through the road that uses at least half an hour or forty five minutes, usually bump into Tsuna and the other. The short cut is through her window then go using the houses roof, jumping from one another will only probably use 10 minutes while if the normal route use half an hour.

"Save landing!" Rin said right beside a dumpling seller, She stopped there for her small breakfast.

"Ohayou ojii-san, obaa-san, Can I have one please?" Rin smiled politely and sitting down beside a pig tailed baby. The two sellers looked surprised to see her but then smiles giving the dumpling and greet her with that familiar voice.

"Long time no see Rin-san," the two greeted smiling. Rin paused munching half way and stare at the seller before looking at the baby beside her surprised. "You're here Fon, Yue! What happened? Why are you here?!" Rin exclaimed excitedly shaking hands with the sellers. Not long after that, another voice called Rin from behind.

"Rin-chan ohayou! You're early!" Tsuna greeted the happy girl and asked for a dumpling himself.

"Ara! Tsuna-kun! Did Reborn eat your breakfast again?" Rin asked happily, Tsuna nodded taking the dumpling. Tsuna looked at the staring baby and seller weirdly. "Ano... Are they your friend Rin-chan?" Tsuna asked sweat dropping at the weird face the baby beside Rin is making. Rin nodded and finished up her dumpling.

"Yup! Um… Today is- oh no!" a silent cold chill runs through her system at one simple remembrance, "Excuse me Fon, Yue! I got to go, I'll help if you need anything! Let's go Tsuna-kun!" Rin waved shakily, taking Tsuna's hand and ran toward the school. The sellers smiles deviously at the two teenage and giving a photo to the quiet baby in front of him.

"Hai master! I-pin will defeat it!" the baby promised in weird accent Japanese before jumping off the chair. The two left behind watch the shadow running away from them.

"Do you think it will be fine? Part of our visit is to greet her, but…" Yue, the small baby with silver hair tied in loose buns in weird beautifully sewn Chinese alike uniform asked worried. The other one, with black braid and in simple red cheongsam chuckled lightly before drawing out a calming breath.

"Fuuu… I believe it will work out well."

-On the way -

"Slow down Rin-chan! I want to eat my dumpling!" Tsuna said as the girl stopped instantly.

"Ah, gomene Tsuna-kun, I've just remembered what today is and I thought Reborn is with you…" Rin apologize sighing. Before Tsuna can answer, a small whimper was heard from the house beside them. "Oh! Little puppy want your dumpling Tsuna-kun!" Rin said excitedly while Tsuna stare at his dumpling and to the puppy back and forth.

"Well… this is my only breakfast so I can't actually share…" Tsuna said and his stomach growl agreeing. Right after the puppy whimpered at the answer, a big dog came from the other side of the gate and growl toward Tsuna who scream scared.

"Help me Rin-chan!" Tsuna whimpered unable to move. Rin sigh and said totally not what Tsuna want to hear, "Gomene Tsuna-kun… but it's just A dog… and this isn't really a death threatening condition so… I can't help you…" Tsuna scream again when the dog opened the gate and approach him.

"Help me!"

Not long, the pig tailed baby from before jump in front of Tsuna and attack the dog with an attack called 'Gyoza-ken' and somehow, the dog fly and went back to where it start. Tsuna looked shocked as the baby just jump away.

"What is that? Psych? There's such thing as that nowadays?!" Tsuna exclaimed terrified. Gokudera and Yamamoto came toward them before Rin could explain. "Are you alright Juudaime?! Is this stupid girl do something to you?!" Gokudera roared angrily. Tsuna explain things to the two of them immediately.

"Dame-Tsuna is definitely Dame-Tsuna after all…" Reborn stated coming out of nowhere. All of the sudden, Tsuna feel a pull and feel himself being dragged by a powerful grip around his arm.

"EHHHH?! AGAIN?!"

-School-

"Wait! Rin-chan! Let go of me!" Tsuna whine scared, he knows the daily routine of the girl and don't want to get involved in any way plus, he didn't know why they run in the first place but he was surprised to have the supposedly forty-five-minutes route in merely a minute. Rin let go of the hand when they arrived right in front of the school and turn toward Tsuna seriously.

"Reborn isn't planning anything weird right?" Rin asked with a threatening look that made Tsuna shivered. A familiar loud roar was heard from the way they came from as two persons catch up toward them, one with an excited look and one with an enrage look.

"What do you think you're doing to Juudaime?" Gokudera roared pulling Tsuna behind him while Yamamoto just stands on the side between them. Rin smiles awkwardly before looking around all of the sudden after a deep bad feeling go through her and suddenly –but surely- the feared baby jump over Tsuna's head and to Yamamoto's shoulder.

"Ciaossu Rin!" Reborn greeted smirking at the fear stricken face the girl made. The other three looked confused at the girl's expression.

"Well! How should we celebrate it this time?" Reborn asked with broad evil smile decorating his small once cute face scaring the girl further. Rin shake her head quickly –mumbling a small 'no thanks'- before running toward the school in high speed. The three looked back and forth between the running person and the baby with them.

"Did you do something to her Reborn?" Tsuna asked accusingly.

"I don't know anything, maybe you'll see later right?" Reborn answered innocently with puppy eyes. 'He must have done something!' Tsuna thought shivering. He knows exactly how scary the baby is even though he didn't know how Reborn and Rin interact in the past though he figured that Reborn didn't change.

"You really did something to her, didn't you Reborn…" Tsuna stated after watching Rin's behavior only for half a day. Its Lunch time now and in all the lesson time, for once, Rin didn't fell asleep even a blink, talk about record. She still smiles a lot but very fidgeting and always looked around as if expecting something to happen, she seems too cautious. Now, Tsuna is with Yamamoto and Reborn only since Gokudera pass out after meeting Bianchi. Rin is out with Kyoko…

"Maybe because I swarmed her room with cockroach on her birthday as a present nine years ago…" Reborn said gravely. Tsuna looked at his katekyo shocked. "But she usually didn't act like this!" Tsuna said again worried. Reborn stay shut before answering, "That's why I said you should know more about your subordinates…"

"What does that have to do with this!?" Tsuna yell angrily which reward him with a kick from Reborn.

"Dame-Tsuna will always be Dame-Tsuna huh? I'll forgive you today! Since today is Rin's birthday after all! Her fourteen birthday to be exact," Reborn said smirking at another shocked face Tsuna and Yamamoto made.

"Whaaat?! I didn't know!" Tsuna exclaimed.

"So that's why! I was wondering why all of the sudden she's like that too… thank god it's nothing big right?" Yamamoto finally sighed relieved.

"Well, this time I decided to be nice and invite my friends and his apprentice for her though!" Reborn stated easily smirking, the two gasped shocked and run to warn her instantly. Reborn stay still on his spot watching the two running away in amusement.

"This way, it will be a blast. Talk about mischievous."

-
"Hee? What is baby-chan?" Kyoko asked as a baby came toward her and Rin. They are in the hallway. Rin too greet the girl that she recognizes as this morning's baby and the baby beside her at the dumpling stand. "Oh! Tsuna's rescuer!" Rin called happily while Kyoko tell her what happened that morning. Tha baby keep silent though, it just pull out a foto of a weird looking man.

"Do you know him Rin-chan?" Kyoko asked confused. Rin shrug and inform the baby that they didn't know in Chinese since the baby is wearing Chinese clothes. "Huwaa! You know Chinese Rin-chan?" Kyoko asked surprised, Rin nodded. "It's part of my job to know many languages Kyoko-chan!" Rin informed proudly.

"Rin-chan! Kyoko-chan!" A familiar voice called from behind them and it sounded rushed too. The girls turn and see Tsuna running toward them. Rin, for a second, have a feeling that something big is going to happen, whether it's bad or good, she doesn't know but hoped for the latter. She swallowed her worry and greets them.

"Ara! Tsuna-kun! What's wrong? What happen?" The two girls asked worried. Unknown to them, tha baby looked shocked as it look back and forward from the photo and the new coming boy.

"Iie... I'm alright... What about you two? Rin? Reborn said he invites his friend for your birthday!" Tsuna informed making the said girl froze on spot. She is wishing, make it begs, to whoever is watching up there to save her from her probably coming misfortune. She really hopes that her meeting with the Chinese babies this morning means fortune.

"Hee? Today is your birthday Rin-chan? You should've told me before!" Kyoko said happily while Rin beamed a slightly trembling bright smile for a bit before settled in smiling awkwardly. The baby cut the chat that time, "Before, I-pin help you, I-pin didn't recognise you, now I-pin will defeat you!" She pointed upward and run away instantly.

"Ara... Did she want to fight you Tsuna-kun?" Rin asked smiling. Tsuna protested and flailing around at that saying, "I didn't even know her!" And "I can't fight!" But he was ignored as the girls went to the rooftop.

"Why do we go to the rooftop?" Tsuna asked sighing. The girls smile and said, "When we talk about fight, up means rooftop!" Tsuna sweat dropped at their similarity and accepted his bad luck.
-

"Ciaossu!" Reborn greet right after the three of them opened the rooftop door. Reborn, Yamamoto –Who Reborn informed to go up there-, the refreshed Gokudera, Ryohei, and sleeping Lambo gathered on the opposite side from the baby which is named, I-pin.

"Yo Tsuna! Good luck on defeating him!" Yamamoto cheered at the shocked Tsuna. "I know you can win this easily Juudaime!" Gokudera said proudly. "Fight to the EXTREME Sawada!" Ryohei ordered passionately. Tsuna stay stuns until that he couln't even remember being moved, to in front of I-pin.

"Let's start!" I-pin stated and immediately give out the 'Gyoza-ken' punch. Tsuna float in the air and was thrown to the wall, hard, it wasn't that painful for Rin but it made the group worry.

"Tsuna-kun!" The group called, minus Rin.

"She really can make people fly huh?" Yamamoto asked no one in particular but was answered by Reborn. I-pin threw Tsuna to the fences hard right after the explenation is finished. Because of the loud noise Lambo and anotherperson wake up.

"Arara... Ah! Weird pig tailed girl ne!" Lambo shout loudly and it seemed to freeze the baby. Lambo continue to chant it as I-pin stayed quiet but sweating badly. Rin remembered something when something appeared on I-pin's forehead.

"Ah! She's the pinzu bomb I-pin!" Rin exclaimed a bit worried, just a tiny bit. The group -minus Reborn- turn toward her curiously. "Is it like my bomb?" Gokudera asked curiously. Rin shake her head and sigh.

"The Pinzu Bomb I-pin means that when those things on her forehead reach one... Then she'll explode... It's started when her shyness reach the top!" Rin explain excitedly all of the sudden.

"Why are you excited? Maybe its range isn't big..." Tsuna said relieve but Rin and Reborn's excited 'hmph' didn't say so.

"Baka-Tsuna! Rin has a hobby to research, watch and make experiment about her weapon and bomb, which is why she can stopped Lambo's bomb. I want her to see the explosion since it is said that her explosion can make a small crater... Sounds exciting right? As expected from Fon's apprentice!" Reborn explain smirking pleased.

"Ehh?! A crater?!" The group exclaim panicked while Rin laugh.

"Then I take it you like my present Rin!" Reborn stated to the now giggling girl. Rin nodded excitedly. "So that's why Fon is here!" Rin said as the pinzu countdown to eight. I-pin suddenly disappeared and re appeared on Tsuna's leg.

"Hee?! Why is it sticking to me?" Tsuna asked panicked. It counted down to seven this time. "Ah, about that, I-pin tends to stict to somebody when she's shy. That's why," Rin answered and this time the pinzu is six.

"No! I don't want to die! And if it exploded, the school and everyone will disappear too!" Tsuna shouted crying. He and Gokudera tried to pull it off as it count down to five. Then a person came to the scene with a cold and rather amused glare.

"Ho... That thing is threatening the school savety..." Hibari state coldly, making I-pin turned toward him. Her eyes turn to hearts and her body relaxing immediately. Even so, it's still counting down to four.

"Eh? It' turning down a bit faster..." Rin thought confused. Reborn smirk and answer, "It seems that I-pin fell in love Hibari that looks a lot like Fon!" The group looked shocked but most of all, Rin blinked and she felt something tightened a bit around her chest, it feels like when she thought she was discovered during her spying mission, nervous? She touched her chest and looked at it weirdly. It turned to three.

"Waa! It's still counting down!" Tsuna exclaimed fearfully. It's now just two left.

"Sa! Protect every one with your dying will!" Reborn state shooting him right on the forehead when the pinzu is only one left. Instantly, Tsuna turn to dying will mode and in a second throw I-pin faraway on time. It blew up afterward.

"Uwaaa! A real big explosion!" Rin said masking what she feel just now. Yamamoto and the other nodded. Reborn though, wasn't fooled and smirk before whispering, "That's the second present for you."

"Oi... Who start this commotion?" Hibari asked annoyed. The other stayed quiet but not Reborn since he said it's all for Rin. Rin gulped before shuttering. "Oh? You're the reason... Then I'll bite you to death," Hibari stated before attacking. It's the usual routine after all. Since Rin managed to escape the morning routine, it feels like it changed schedule.

"Stop! Please! Hibari-kun!" Rin whined annoyed, it's not that she have many trouble dodging, she just rather not fight, strict order from the Ninth. Hibari merely smirk but he really looked like he's enjoying it. The other watch in amusement, since the two fight so fast and yet either side didn't get even a hit. Reborn 'hmph' before throwing something to Rin's legs even though she is already pressed to the wall, making her legs unable to move.

'What?' Rin thought confused as her legs gave out all of the sudden. She immediately closed her eyes when Hibari attacked her expecting a painful hit... That never came.

'A…re? He didn't hit me?' Rin thought confused and opened her eyes slowly. Her eyes meet Hibari's eyes. They stay there not moving. With Rin's hand over her chest and head –supposedly to minimize the pain- , and Hibari's tonfas, one above her neck and the other beside her head, they stare at one another.

"Why did you stop Hibari-kun?" Rin asked the smirking boy above her. Hibari stood up and walk away after whispering something on her ear. Unconsciously, Rin turned beet red at the closeness. Rin slump down with her hand on her mouth and the other gripping her clothes that cover her heart tightly. The other immediately gathered around her and asked if she was okay or not.

"So, do you like his present Rin?" Reborn asked cutely. Rin and the other stare at Reborn. Rin looked down again to hide her face before asking.

"W-what's that supposed to mean? I'm given the permission to bring weapon and to go to any part of the school? He didn't have to tell me that! And what about me joining the disciplinary committee as the second in command along with Kusakabe again? No!" Rin shutter a bit still gapping in shock. The group looked surprised again.

"He really said so Rin-chan?" Tsuna asked shocked. Rin -who had calmed down- look up and nodded making Reborn's smile widen.

"People like Rin is needed too Tsuna!" Reborn stated easily. Rin smile as the baby before remembering upon thanking him of the -for her- normal present.

Unknown, Yamamoto frown a bit at the exchange between the two.
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Now that i re-read this chapter, it kinda feel forced but oh well...

i didn't change it much but i hope you enjoy this :D