-Reborn's POV-

Sawada, Tsunayoshi....for short, Tsuna....

Namimori Middle School First Year Class A

His Test Scores for all subjects average out to 17.5

He can only go up to the 3rd level on the vaulting horse.

He can't even spin on a horizontal bar.

To train this useless "no good Tsuna" to become the Vongola Family's 10th generation boss, I came all the way from Italy.

"I am....the Hitman Tutor, Reborn!"

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-Namimori Airport-

A plane coming from Italy had just arrived in Japan.

While many passengers exited the plane, two of them seemed to be very strange.

One was a tall woman, about in her early 20's with long magenta hair and green eyes.

'I won't let you get away this time.'

The woman walked off, her face seemed to be focused at her task at hand.

The other seemed to be at the age of five with black hair shaped in an afro, two bull horns on his head, green eyes, and a cow-printed suit. This one seemed to be hiding among the luggage bags.

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-Sawada Residence-

All seemed peaceful at the Sawada Household....until......

BOOM!

"GYAAAAAAH!" "EEEK!"

An explosion went off in Tsuna's room, thus causing him and Naria to scream. Reborn, Tsuna's tutor, was wearing a hard-hat and had three bomb detonators beside him, each labeled with a question.

After Tsuna recovered from the explosion, he quickly went to talk to his sadistic home tutor, "Hey Reborn! In what universe is there a tutor who activates an explosion when you answer a question wrong?!"

"This is the way I do it." came the hitman's calm reply.

"Who in the right of mind does that?!" shouted Naria.

"That can't be right." Tsuna muttered.

"It's good that you were able to get subordinates." continued Reborn. "That's not bad for a Boss. Keep working harder."

"By subordinates, you mean Gokudera-kun and Yamamoto-kun?" asked Tsuna.

"And don't forget about Naria." said Reborn.

"EH?! Since when is Naria-chan apart of this?!" asked a panicked Tsuna, concern for his childhood friend showing.

"I became involved when Reborn came along and explained everything. I'm not letting you go through this on your own, Tsuna." said Naria, reading through an English Textbook.

"But, they're just my classmates, and Naria-chan is my childhood friend." said Tsuna. "I don't need subordiantes and I'm not going to become some Mafia Boss!"

Reborn went back to the detonators and ignored Tsuna's complaining.

"Here's the next question." said the Spartan Tutor, flipping through a textbook.

"Listen!" Tsuna urged, but Reborn ignored him.

"Why do I need to be taught by this baby..." he muttered.

Tsuna suddenly looked out the window and saw a boy with a large black afro and holding an ARMY of weapons, with a big toothy smile on his face.

"Wuh?! Ne, Naria-chan, am I seeing things?" asked Tsuna, pointing outside to where the afro-haired baby is.

"I don't think you are Tsuna...." came Naria's blunt reply, also seeing the baby clear as day.

"Here we use this formula." came Reborn's voice.

Tsuna walked over to Reborn and pointed outside, "Hey Reborn...over there..."

"Die! Reborn!" came the baby's threat, but then the tree branch it was sitting on broke due to the weight of all the weapons it brought.

Both Naria and Tsuna looked out the window and flinched when the little boy fell to the ground.

"Are you sure we're not going crazy?" asked Naria, rubbing her eyes.

"I'm pretty sure Ria-chan." said Tsuna as the two teen returned to the study session taught by their Spartan Tutor.

Suddenly, the bedroom door was opened, revealing the same little boy from outside.

"It's been a while, Reborn! It's me, Lambo!" declared the cow suited boy.

"It came in!" yelled Tsuna in surprise. "Is this someone you know?"

Reborn ignored the question and focused on Tsuna's studies, "Remember this formula, alright?"

The baby, now named Lambo, growled, not very pleased at being ignored.

"HEY! DON'T IGNORE ME!"

Reborn just rebounded him back to the bedroom wall, leaving cracks and an indent.

"Cruel..." muttered Naria, sweat-dropping at the action.

Lambo popped out from the indent, groaning in pain.

"I tripped on something..."

"The five year old Hitman, Lambo of the Bovino Family, who came from Italy, has tripped! My favorite foods are grapes and candy drops. The sworn rival of Reborn, Lambo, has tripped!" he cried.

'He's trying to introduce himself while crying...' thought the two teens with stress lines on their foreheads.

"It's so nice to see you again, Reborn!" said Lambo, moving from the wall to behind Reborn, who ignored him yet again.

"Try solving this with the formula."

"Eh?! You're ignoring him?!"shouted Yoru.

"Gotta be...calm." mutter Lambo. "Oh my, I wonder what this is?"

Lambo took out a grenade from...his HAIR?!

"Ta da!"

"GYEH!" came Tsuna's choke of surprise.

"DIE! REBORN!"

Lambo threw the grenade at Reborn, who is still ignoring him, but Reborn smacked it out of the way, resulting it to hit Lambo, sending him out of the window and into a tree. There the grenade exploded.

"Now the next question."

"You really didn't need to go that far." yelped Tsuna. "You know him, right?!"

Naria had gone outside, to make sure that Lambo was okay.

She found Lambo under the burned tree, black with soot and crying his green eyes out. Naria picked him and comforted him. Soothing him gently.

"There there, Lambo. It's alright." Naria said, comforting the cow as best as she can.

Soon, Lambo fell asleep in her arms. Naria walked home, telling the Sawadas and Reborn goodbye before she left.

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-The Next Morning-

Tsuna left late, once again. Naria had gone on ahead, saying that she had a Math lesson to make up.

"Itekimasu!" said Tsuna, running to school with buttered toast in his mouth.

"See you later, Tsu-kun." came Tsuna's Mom.

"Study hard." came Reborn's voice from his mother's arms, eating pasta.

Tsuna ran towards school, but his thoughts on Lambo kept him busy.

'What was with that kid yesterday...Weirdos keep popping up ever since Reborn came...'

As Tsuna continued running, he finished his toast and stopped just in time, a bike rider had stopped just a few feet in front of him.

The rider took off her bike helmet, revealing her long magenta hair and silver eyes....that seemed familiar to Tsuna.

'Wow, such a good-looking person...'

"Here, you can have this." said the woman, throwing Tsuna a can of orange soda before riding off.

Tsuna tried to catch it, but failed to do so, and spilled the soda on the ground.

"I look so uncool..." he muttered, bending over to pick it up. "It spilled too. But why me?"

But before he could, a purple plume of smoke rose up from the spilled soda, killing the crow above him.

"WHAT THE HELL?!"

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-At Namimori Middle-

Tsuna got to school right on time, just a few minutes early. But the incident from earlier had him worried.

'What was that...'

As he reached his classroom's door, he opened it only to see Gokudera's smiling face right behind the door.

"Ohayogozaimasu, Jyuudaime!" greeted Gokudera.

"WAH! Gokudera-kun! Stop calling me that!" said Tsuna, making sure no one heard him.

"Iie, Juudaime is the Juudaime (10th)." came Gokudera's enthusiastic, yet blunt reply.

"But..." started Tsuna, worried that someone might hear, but was stopped when Yamamoto came.

"Oh, your still playing the Mafia game?" said the Baseball fanatic. "Looks like fun. Let me be into the "family" thing too."

"Y-Yamamoto..." stuttered Tsuna. 'He thinks it's a game...'

"What?! You're after becoming Juudaime's right-hand man!" growled Gokudera. "It won't go that easily. Juudaime's right hand man is me!"

"Let's just forget about all this boss and subordinate stuff." said Tsuna, worried it might be an all out brawl soon.

"Come on, let me into your group." persisted Yamamoto. "The more the merrier, right?"

Naria also came from inside the classroom, hearing their conversation.

"Ohayo Gokudera-kun, Tsuna, Yamamoto-kun." she greeted cheerfully.

"Ohayo Hime-sama!" came Gokudera's greeting.

"Eh? Hime (Princess)?" asked Tsuna.

"It's a long story, Tsuna-kun." replied Naria.

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-Flashback!-

Naria was on her way home after Gokudera came to school. Just as she reached her street, she heard footsteps behind her.

Naria turned around, only to see Gokudera running towards her.

"Eh? Gokudera-kun, what are you doing here?" asked the blackette.

"Y-You're the one who saved me from that stick of dynamite! Arigatogozaimasu!" thanked Gokudera, bowing in a ninety degree angle in front of Yoru.

"It's fine Gokudera-kun, Tsuna wouldn't feel good if you blew yourself up." said Naria, patting Gokudera's silver hair, smiling.

"You're Juudaime's childhood friend right?" asked the bomber.

"I'm guessing Reborn or Tsuna told you, huh. But yeah, I am." confirmed Naria.

"I'll protect him with everything I have Hime-sama!" Gokudera promised.

"Eh?! H-Hime-sama! Gokudera-kun, I'm not a princess!" squeaked the brown eyed girl in embarrassment. "I'm not that important!"

-End of Flashback-

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"That's how it happened, Tsuna." said Naria.

"You guys, you're in the way." came a voice behind them.

The quartet turned around to see Kyoko and her best friend, Hana.

"Ohayo, Tsuna-kun, Naria-chan." greeted Kyoko with a bright smile on her face.

"Ohayogozaimasu, Kyoko-chan, Hana-chan." greeted Naria with a smile.

"K-Kyoko-chan! Ohayo!" greeted Tsuna, who had a faint blush on his face.

'Ah! Kyoko-chan is really cute as usual...' thought Tsuna with a dreamy look.

Then Kyoko pointed down to Tsuna's leg, "Is this kid your brother?"

The quartet looked down to see Lambo on clinging onto Tsuna's pant leg! He looked like he was about to cry.

"WAH!? Since when?!" shouted a shocked Tsuna.

Gokudera and Yamamoto looked down on Lambo.

"Who is he?" asked Gokudera.

"Oh, it's cute!" smiled Yamamoto.

Naria went over and kneeled down to Lambo's height, "Lambo-kun, why are you here at school? I thought okaa-chan (mom) was watching you?"

Lambo lept from Tsuna's leg into Naria's arms, "Lambo-san got lonely!"

Kyoko went over to the two, "How old are you little boy? What's your name?"

"Is it really OK to bring him to school?" asked Hana.

"N-No, it's not like that..." stuttered Tsuna nervously.

Lambo began to cry while Naria tried to calm him down.

A small commotion in the crowd caught their attention. When the crowd moved away, there was the director of the disciplinary committee, Hibari Kyoya.

"I'm sorry, I'll return him immediately!" said Tsuna, dragging Naria and Lambo with him.

"Juudaime! Hime-sama!" called Gokudera, running after them.

"Come back before class starts!" called back Yamamoto.

Tsuna ran all the way to where the water faucets are and stopped running. Both he and Naria panted heavily from all that running. The good thing was that Lambo had calmed down. Gokudera was not that far behind.

"Your name was Lambo, right?" asked Tsuna. "What are you doing here?"

"I was...looking for Reborn." whimpered Lambo, crying into Naria's shoulder.

"Uh, so you're lost." muttered Tsuna.

Gokudera had finally been able to catch up with them, "Hime-sama, Juudaime, who is this kid? It seems he knows Reborn."

"Uh yeah, they're acquaintances...or something." replied Naria, rubbing the weeping Lambo's back.

The faucet wall suddenly opened, revealing Reborn, sitting in a chair.

"Tsuna, classes are starting soon! Hurry up and get back to class." said Reborn.

"WHERE THE HELL ARE YOU COMING OUT FROM?!" shouted Tsuna in shock and surprise.

"My hideouts in this school are all connected by a secret passageway." explained Reborn.

"Don't just randomly do that!" shouted Tsuna, and Naria put a hand on his shoulder to calm him down.

Lambo suddenly climbed up from Naria's arms, onto Tsuna's head.

"You fell for it, Reborn!" he laughed. "Everything up until now was staged to get you to come out!"

"Uh, you were crying for real..." retorted Tsuna.

Lambo froze, until he brought out a giant light green bazooka out from nowhere!

"Brace yourself, Reborn!"

"YAAAAH!" shouted Tsuna, slowly inching his way towards Naria, who didn't seemed fazed at all.

"Reborn-san, could this kid be..."asked Gokudera.

"He's a Hitman from the Bovino Family." replied Reborn.

Gokudera stood in front of Naria and Tsuna, his dynamite out in hand.

"Stay back Juudaime, Hime-sama. I'll handle this!" declared Gokudera.

"Wah, No, Gokudera-kun!" yelped Tsuna.

Too late...Gokudera lit his dynamite and threw them at Lambo, "This is your end!"

"Wuh?!" questioned Lambo, looking up and seeing the dynamite.

BOOM!

When the smoke cleared, the bazooka was destroyed, and Lambo was crying.

"Oh no, he's crying again." groaned Tsuna.

"He's...so weak." muttered Gokudera in surprise.

"Well what did you expect, he's five years old." said Naria, getting up.

Suddenly, Lambo reached into his hair and took out a large purple bazooka!

"How did he get that out?!" shouted Tsuna in shock.

Lambo jumped inside the bazooka and pulled the trigger.

BANG!

Pink smoke flitted everywhere.

"Eh?!"

Footsteps could be heard from the smoke, but they were not little baby steps, they were grown up steps.

When the smoke began to clear, a grown man could be seen through the pink smoke.

"What?" choked out Gokudera, at the sight of the man.

The teen had black hair, green eyes with one of them closed, a small tattoo under his opened eye, a cow-print shirt with a black button up over it, khaki pants, and brown sandals.

"Ah, geez." sighed the teen. "Nice to see you again, young Vongola 10th and younger Onee-chan."

"W-Who is he..." questioned Tsuna.

Gokudera looked at the teen with familiarity, "I've seen him somewhere..."

"Thank you for taking care of my 10 year younger self." thanked the teen. "This is that Lambo, who was once a crybaby."

"N-NANI?!" shouted Tsuna in shock.

"Ne ne Lambo-kun, you've grown so much." said Naria, looking up at the adult Lambo.

"I see, the 10 Year Bazooka." observed Reborn.

"What's the 10 Year Bazooka?" asked Tsuna, looking at Reborn.

"It's a well-used weapon in the Bovino Family."

"A person hit with the 10 Year Bazooka will be replaced with themselves from 10 years in the future. But it only lasts for five minutes." explained the Adult Lambo.

"No way, this cool guy is Lambo?" asked Tsuna.

"Apparently....Ne, Tsuna I'm going to head to class early before Hibari-san finds us. Lambo-kun, you better not cause any trouble alright?" Naria told the two boys.

"Hai, younger Onee-chan." replied Lambo lazily.

Naria left the scene, but not long after she heard more commotion.

"DIE REBORN! ELETTRICO CORNUTA!"

"Mou...Reborn needs to stop ignoring him sometimes..." sighed Naria, entering class.

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-Le Time Skip brought to you by Adult Lambo-

It was lunch time and Naria was running late to meeting the others on the roof.

'What's with Tsuna today....there's something bothering him, but what?' thought the blackette as she climbed the last set of stairs. As she reached the door of the roof however, she saw a woman with long magenta hair and silver eyes.

"Konnichiwa, uh...."greeted Naria, trying to sound polite, but was suspicious of the woman.

"Bianchi." said the woman, before walking away.

'What was that about....' wondered Naria before opening the door to the roof.

When Naria opened the door, she saw Gokudera on the floor in intense pain.

"Aw crap, what the hell happened here?!" she shouted in concern.

"We'll explain later, we need to get Gokudera-kun to the Nurse's office!" said Tsuna as he and Yamamoto picked up Gokudera by the underarms.

"To put it simply, Gokudera has a sister, Bianchi." said Reborn.

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-Later-

The boys were waiting in the classroom, it was an event that a lot of the boys await.

"Too bad Gokudera for getting a stomachache at a time like this." joked Yamamoto.

"Y-Yeah..." stuttered Tsuna.

The door to the classroom opened, and revealed all the girls in their class holding sweets from Home Economics Class.

"Today we'll give the cakes we made in Home Economics Class..." started Hana.

"To the guys!" said all the girls.

The males in the class drooled over the cakes, but some of the girls were part of Gokudera's fanclub, and only wanted their cakes be given to him. That made some of the boys depressed...

Bianchi slipped into the crowd of girls, switching Kyoko's cake with a poisoned one!

Outside, Reborn had a sniper Leon in hand, and a Dying Will Bullet at the ready.

"Good job protecting your Family. That makes you a boss." said Reborn, firing two bullets, one a Dying Will Bullet and the other a poison resistant bullet.

The two bullets hit Tsuna and put in his Dying Will Mode.

"REBORN! I'll EAT CAKE WITH MY DYING WILL!!!!!!"

Tsuna ate all the cakes in the class, which resulted a few angry classmates. And a sad Lambo who came because he heard that there was cake.

"There's no more...cake?!" he cried, tears running down his face. "Gotta...be...calm...I CAN'T!"

Lambo then took out the bazooka and blew himself up, taking the form of his 10 years later self.

Naria was just a few steps away from the classroom when she saw Adult Lambo.

"Ne Lambo-kun, nice of you to drop by." she said with a smile.

"Hai, onee-chan!" said the Adult Lambo fondly.

Then footsteps came from the other side of the hallway, Bianchi was holding a large poisoned cake, intended for Tsuna!

"If it comes to this...I'm feeding you my special cake!" declared Bianchi, but she stopped suddenly when she saw Adult Lambo, her face was red. "Y-You're...!"

'Eh? The girl from before?' wondered Naria.

"Romeo! You're Romeo!" cried Bianchi.

"That's right, that idiot looked a lot like Bianchi's ex-boyfriend." said Reborn, looking at a picture of Bianchi and her boyfriend, who really did look a lot like Adult Lambo.

"Eh?!" Naria yelped in shock.

"Oh Romeo, you were still alive." said Bianchi, her face still red, but suddenly turned serious.

"TAKE THIS! POISON COOKING!!!!!!"

Bianchi smacked the poisoned cake into Lambo's face, causing him to fall to the ground.

"NANI!?" shouted Tsuna.

"It seems the reason Bianchi and her ex-boyfriend broke up was because of an argument." explained Reborn.

Naria and Tsuna quickly ran to Lambo as Bianchi walked away.

"Hey Lambo, are you okay?" asked Naria, shaking the poisoned teen. "Hey..."

"K-Keep it together!" said Tsuna.

"Maybe the medical treatment 10 years later will help him." said Reborn.

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-Later, After School-

Tsuna, Gokudera, and Naria entered the Sawada Residence. Tsuna's mom greeted them enthusiastically, but then mentioned that Tsuna had a new tutor....

The trio entered Tsuna's room and saw Bianchi sitting with Reborn!!!!!!

"Eh?! Gokudera-kun!" squeaked Naria, helping the silver head up.

"W-Why are you here?!" shouted Tsuna.

"It's for love." said Bianchi.

"It's for work." said Reborn.

"Reborn needs me."

"Bianchi will be in charge of part of your training. And she'll be Naria's tutor as well."

'What they're saying is totally different...' thought Tsuna....wait...

"BIANCHI IS NARIA-CHAN'S TUTOR?!" screamed Tsuna.

"I'll be teaching you both Home Economics and Art." explained Bianchi. "Reborn asked me so I have no choice. I'll teach y-o-u."

"NO!!!!!!!!"

After getting the unconscious Gokudera onto the bed, Reborn began to explain the situation. 

"Since Naria here is almost always around you Dame-Tsuna, I managed to talk Bianchi into being her teacher." explained the infant. "Especially since she can be used against you."

Naria narrowed her red orbs at Reborn, while offended, did understand where he was coming from. 

"Used against me?!" squeaked Tsuna.

"It is because she is associated with you, the Vongola Decimo, that she will be targeted." further explained Reborn. "With Bianchi and I, to an extent, teaching her, she would be able to handle any situation that may involve you being Vongola Decimo." 

"But I don't want to be a Mafia boss!" refuted Tsuna. "I don't want my friends being involved in this!" 

Naria placed a hand on Tsuna's shoulder, a smile on her face. 

"Don't worry about me Tsuna," she said. "Remember what I said earlier, I'm not letting you go through this alone." 

At this, Tsuna smiled. While he was a bit hesitant to involve his childhood friend into this, he was glad that she was there to help him. 

Reborn and Bianchi stared at the two friends and observed their interactions. While Bianchi looked indifferent, Reborn stared at the red eyed girl. There seems to be something about those red eyes that seemed familiar to him.