Welcome! My first katekyo hit man reborn fanfic. I have seen many stories involving Tsuna having a daughter/son fanfics, and decided on an idea of making 'Tsuna's children as twins~' Hope i didnt copy anyone~ Anyway, sorry if i have any spelling/grammar mistakes,

Disclaimer: I do not own Katekyo Hitman Reborn, All credits goes to AMANO AKIRA

enjoy~

Prologue: Present into the Past

A young girl walked out of her classroom, as she was ready to go home. She was just an ordinary girl, with long, light brown hair with dark green eyes and wearing a sailor school uniform. As she was walking down the hallway, and toward the exit, there was another young boy waiting school entrance. The young boy was also wearing a school uniform, but different from her. He had spikey, dark brown hair with a headphone over his head, with dark green eyes. As he spotted the girl, he started to wave at her and began to call out a name.

"Mika! Over here!" shouted the boy.

The young girl noticed the boy and quickly ran toward him.

"Maki! What are you doing here?" said Mika, as she approaches the boy with the headphones.

"I got a message that Dad wants to meet us at his underground base" said Maki.

"Urg. I have a feeling that this is about the 'Vongola inheritance'… but why does he want us to meet at the underground base? Usually he likes to complain about this at his own office." Said Mika.

"um. Yea… I wonder what this is about," mumbled Maki.

Mika and Maki walked down the sidewalk, but then they later went off track into a forest. As they went deeper into the woods, there was a hidden entry between two thick logs. They entered and rode an elevator that linked deep underground.

"I wonder why Dad made these tunnels anyway?" asked Mika, as they were still in the elevator.

"I think this was made because for some sort of parallel dimensions… or something to do with time traveling…" mumbled Maki.

"Dad always says weird things… not sure if I believe him" said Mika

As the elevator finally reaches the bottom floor, they exited the elevator and walked down the hallway, and then they spotted familiar faces.

"Yamamoto-san! Gokudera-san!" shouted Mika, waving toward them.

"Ah, Mika~ Maki~ Wow! You guys grew up so fast, the last time I saw you guys were when were in elementary school" said Yamamoto, laughing happily, but than all the sudden Gokudera quickly grabbed Yamamoto by the shoulder.

"Add –SAMA!" shouted Gokudera, which he wants always wants to show respect toward his boss with the same treatment to his children.

"Gokudera-san, you don't need to be formal with us," said Mika.

"No, I can't do that," said Gokudera.

"haha~ Gokudera! You are the same as always" said Yamamoto happily.

"why… you… !" shouted Gokudera, as he was about to pick up a fight with Yamamoto.

"You guys sure get along well…" whispered Maki.

"No, we do not Maki-sama" replied Gokudera politely.

"Please stop the formality…. " whispered Maki

"ANYWAY! Where's daddy?" interpreted Mika, eagerly to finish her own business.

"Oh um, the Tenth wants us to escort you to the Irie's laboratory, follow us" said Gokudera,

As Gokudera and Yamamoto lead to them to the lab and entered it. The laboratory was huge and consists with many weird devices, one of these devices looked new to Mika and Maki as it looked like some sort of portal. There were also several other familiar people waiting inside the laboratory.

There was Irie Shoichi, Spanner, Dino, and lasty Sawada Tsunayoshi, the tenth Vongola boss, their father. Gokudera and Yamamoto first headed toward Tsuna, while both Mika and Maki followed along.

Tsuna noticed them coming and approach them happily.

"Maki~ Mika~ I missed you guys! Give me a big hug!" smiled Tsuna as his arms were wide open for Mika and Maki to come forward.

There was awkward silent, as Mika and Maki did not approach toward their father for a hug, instead they stared at their father with disbelief. Everyone else also stared at the awkward family.

"Hey! Don't you guys want a hug from your loving father" asked Tsuna happily.

"No, thank you. Its too embarrassing" answered Mika

"I decline…" whispered Maki.

Tsuna became sad, and started to shed bits of tears from his eyes.

"So.. I'm also a no-good father too" mumbled Tsuna as he started to use his arms to wipe his tears. Everyone else tries to cheer Tsuna up, but his children remained silent and stared.

"Dad, stop with the acting and get on with the business," interrupted Mika.

"Ahem.. sure. How should I start this..?" said Tsuna, as he was stopping his fake tears became a bit more serious.

"I will start with the oldest. Maki, are you interested in becoming 11th Vongola Boss" asked Tsuna.

"No thanks, not interested" answered Maki,

"um. Okay.. how about you, Mika?" asked Tsuna

"DADDY! For the hundredth time, I don't want to be a head of some Mafia party!" shouted Mika, as this was not the only time her father had asked her.

"Haha! Tsuna, they remind me of us, when we were young, " laughed Dino cheerfully.

"-sigh- I wish Reborn was here… but he went on some sort of mission and has been missing for a while.." said Tsuna sadly, thinking that Reborn is the only tutor that he can depend on for his children.

"But! He wrote me a letter with instruction for Mika and Maki" said Tsuna, as he held a piece of paper in his hands in front of his children.

Mika and Maki tensed, knowing that whenever Reborn was involved, there is trouble going on.

"Daddy…. What does that letter say?" hesitated Mika.

"Well… you'll see it soon." Said Tsuna as he nodded at Gokudera, Dino, and Yamamoto for the signal.

"Sorry about this! Mika-sama, Maki-sama" said Gokudera.

Gokudera, Yamamoto, and Dino quickly grabbed the confused children: Mika and Maki and began to drag them to the portal device.

Shoichi and Spanner quickly started the machine as it began to suck only Mika and Maki into it.

"DAD! WHAT IS THIS ABOUT!" shouted both Mika and Maki as they were standing in guard on the floor, the gust of wind wouldn't suck them in.

"You guys have a important mission, you guys need go to my 14 year old self. My 14 year old self and Reborn are good opponents that will make you stronger, and there is also other more interesting opponents." said Tsuna smiling.

"WHY YOU! DAD! I won't forgive you!" shouted Mika.

"Oh! And also if you each don't beat my 14 year old self and the other guardians, the portal will never open for you, and you can't back to this timeline," said Tsuna.

The portal device began to sink Mika and Maki in more, as they could not hold any much longer. They began to get sunk inside.

"Well… I will see you guys soon." Waved Tsuna.

"DAD! Wait until I get back there! I'm going to kill y—" shouted Mika, as the portal finally suck them both inside.

Tsuna sighed, and Yamamoto started to talk.

"oy, Tsuna, are you sure that this is the best solution?" asked Yamamoto.

"I'm not sure, but this might be the only way for them to get stronger. Right Reborn?"

Tsuna started to talk to the tall, dark shadow that appeared from behind.

"Of course! They will need all the help they can get there." replied the tall figure with a top hat, it was the image of adult-like Reborn

"I hope you're right," whispered Tsuna as he turned around and faced the portal of where his children left.

Prologue has ended. Let's see how this turns out.. haha Lol.

I kinda tried to make Tsuna not out of character... but since he is all grown up and loves his families, i expect him to act like that (but still a fanfic)... but in the end... he still relies too much on Reborn.

Here's a mini profile on the twins:

Mika Sawada: age 14, female, loud & bossy, shows leaderships/determination, strong willed, too aggressive, has a bit of a cute type but can sometime be evil.

Maki Sawada: age 14, male, quiet & kind, has good pride in protecting anyone, strong heart, too quiet on strangers, usually a cool type but when angry he can cause destruction.

information such as weapon types, boxes, etc. will be determined later chapters :D

anyway :D Stay in tune for the next chapter, Hope this gets interesting.