Take note: I do not own KHR but I can make AU out of it. *Laughs evilly* May the Fiction begin!

Chapter one: Sawada Tsunayoshi, The Forgotten Child Of Vongola

A brown-haired female slips inside the living room, making sure that no one was there with her, she pulls out a rose-scented letter from her pocket and opened it.

Dear Kaa-san,

I finished travelling around the world. It was great! Being able to do all sorts of stuff (Nothing dangerous: I'm honest -really-). Uncle Checkers taught me how to read and write using twenty different languages and more! I also gained my college degree while I was in Italy and London (Just for one year each, in the subjects of Mathematics, (Took me a long while to finish) Science, Literature and History. Of course, I can now sustain all my expenses like an average adult, but let's keep this a secret to Onii-san and Tou-san shall we?

I came to see Otou-san and found out that he is busy doing paperwork in Italy (you and I know that Otou-san's work doesn't always revolve in extremes right? So don't fret!). I had to stay with Aria-nee house for a while to watch him and though she's nice, you will always be the best mother I ever had, Okaa-san! (Remember that!) I heard that Onii-chan will be the Vongola tenth right? We have to celebrate for him then!

Well ... Umm... Our 13th birthday is also coming up and I really miss you ... So! This could be the right moment to come back home in Japan and make up for all the times we missed five years ago. Hopefully, you could explain this all to Onii-san about my shortcoming. (Don't include the important parts)

SEE YOU SOON THEN MAMA! ^.^ !LOVE YOU!

P.S.

Everyone wants me to be part of their family, but I only have one family in mind and that's with you, Okaa-san! They're even naming me as the second most kind yet feared hit man in the world, quite funny that I'm named a hit man even if I never killed anyone, this goes to show why I'm the lone assassin so they won't find out. Hmm ... I think as soon as I reach there, I'll have to act like the same old Tsuna so that everyone can remember me again and to the fact that no stalker would follow me, Ne?

Silently Thanking From,

Pietoso Cielo

'Tsuna-kun..' Nana smiled, reading the letter. Her son never did stop giving her letters since he left with that man. That man who saved her little Tsunayoshi from the mafia, the mafia her husband works with ... Her child's savior, named ...Checkerface.

"Gao~!" A cute mini lion purred out to the female brunette, it had an orange flaming mane with yellow skin, lying on her lap sleeping. Nana smiled at this act, reaching to pat the lion's mane, she wasn't surprised when she didn't get burnt knowing that this cub was Tsuna's pet, Nuts.

"Wakey-waky Nuts~!"

"Gao~?"

"You have to go back to Tsu-kun now~"

"Gao!"

"Don't worry~! You will see Mama again. "

"Gao?..."

"I Promise."

"Gao~!"

Nana laughed as the lion cub jumped off to the floor then started to roll towards the exit like the cute kitty it is. When Nuts finally disappeared, the mother stood up and threw her son's letter to the burning fireplace (courtesy of her husband, Iemitsu), just like all the letters she received from him in the past. Nana watched the letter slowly turning to ashes, 'My little Tsu-kun ... Growing up so fast.' Nana then glanced up, seeing the family pictures and wall clock. "Oh no!" She said, heading towards the kitchen. 'I should start making food for dinner.'

When Nana was just about to begin cutting the fish, she heard a ruckus outside.

"Lambo! Dame!"

"Nyahahaha! Lambo-san is the greatest!"

"Shut up! Cow brat!"

"Now now Gokudera! He's just a kid."

"Who said you can join us, baseball freak."

"Ieyatsu did."

"Juudaime?!"

"Yes, Gokudera-san, I did."

"If Juudaime says so..."

"SAWADA! JOIN THE BOXING CLUB TO THE EXTREME!"

"Stop following Juudaime, turf head!"

"NANI?!"

Nana smiled yet again, " Ne? Fuuta-kun, can you open the door for me? Bianchi-san? Can you help me cook for our unsuspected guests?" A pink-haired woman and a young blond boy came to view, Tsuna wrote to her that the woman's title in the mafia was Poison Scorpion, Bianchi. On the other hand, the boy to the left has the title of Fuuta De Stella.

"Hai!" Fuuta went, skipping happily towards the door to greet his 'Nii-san'. "Of course, Maman. " Bianchi said, heating the pan for frying. Nana watched the two for a while and remembered what her younger child said to her before leaving, 'Mafia isn't always bad nor is it good. It would depend on how you perceive it, that's all.' Nana then continued with her work.

"Yatsu-nii!"

"Kaa-san! Tadaima!" Her older son called out, closing the door. Nana estimates through the sound of their footsteps and voices (excluding Reborn of course) that there was about six visitors entering the house. Nana, like the mother she is, answers back, "Yatsu-kun! I have something very important to tell you later so get ready!"

Her older son wasn't good at taking news anymore, ever since he met his first time tutor, Reborn.

~.~.~.~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.~.~.~.~.~~.~ Flash back ~.~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.

"Ciaossu! I'm Reborn, the strongest hit man, here to tutor you." The baby suited in a black outfit greeted her bewildered son. Obviously, her older child wouldn't believe the baby even if it was written in the pliers I let him see. (I wasn't much surprised like my child here because my younger child, Tsu-kun, immediately sent me a warning about a tutor coming over from Italy to teach my son)

"Isn't this great, Yatsu-kun? He will be tutoring you for free and all we have to give is space and food. He will only leave until your grades hit the top marks!" I said cheerfully, "Maybe with this your grades would go higher, reaching top one in class! Imagine my son with a diploma~!" I somewhat daydreamed about that. (Hey! A mother could dream for her child's future you know?)

"Kaa-san! He is just just a baby! He can't teach me!" My older son said, waving his hands to me, he thought I didn't notice so he faced the baby hit man, "Why can't you just go home kid-ITAAII!" Apparently, all children and even some adults don't like to be insulted by others.

"Maman. I'll be staying in Dame-Yatsu's room." The hit man said, dragging my whimpering child upstairs with him. "Good night~!" It was the last thing they heard me say when they closed the door.

I sat down the couch as droplets of water come out from my eyes. "Tsu-kun... You're right..." I whispered, more droplets falling from my eyes.

"It's either you or your brother..." I gulped, trembling slightly, remembering my child's dream at the same time accepting the situation before me. "That will be taken away from me t-to become... The Vo-Vongola boss..."

I stared down, silently wiping as the words my five-year old son, Tsunayoshi, echoed in my mind:

"Don't worry Kaa-san! I'll just change fate! I'll change it with my dying will!"

~.~.~.~.~.~.~.~~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.~.~~.Flash Back End~.~.~.~.~.~.~~.~.~.~.~~.~.~.~.~.~.~.~~.~.~.~.~~.~.~.~.~.

"What's wrong maman?" Reborn asked, while stealing Ieyatsu's miso soup. "Reborn!" The future boss of Vongola screamed, "Give it back!"

"No way, Dame-Yatsu." The baby slurped the miso soup in one gulp before putting the bowl to the table. The teenager just sighed, sitting back eating the rest of his food possessively.

"Tsuna-kun's coming home." Nana stated, watching her son's eyes be filled with dread. "Yatsu-kun?" Nana never did find out why her older son hated his younger brother. It was his fault for making Tsuna cry every day starting from Tsuna's first day in Namimori kindergarten.

"I thought he is dead..." Yatsu was gripping his chopsticks too hard, it snapped. Everyone in the room was surprised except for his mother, Nana.

"Yatsu-kun! Why do you hate your brother so much?!" Nana scolded, her memories with Tsuna flashing in her head.

"Kaa-san!" A small brunette cried, hugging his mother, "Onii-chan hates me!"

"There there, Tsu-kun. Maybe Yatsu-kun didn't mean it." The mother, Nana said but the boy just stared at her.

His soft brown eyes started growing dull, letting the mother wonder what just happened.

"Then why did Onii-chan let his friends hurt me?"

"Because he left us!" Ieyatsu shouted, pointing at his mother who just turned away, "And most importantly, he did nothing but trouble!"

"Tsu-kun? Why did you do that to your Ojii-san?" Nana asked him, the boy faced her, showing a soft orange flame.

"Otou-san likes Onii-chan right?" The boy asked, shocking her mother, "That's why I acted that way to Ojii-san so he would go for Onii-chan."

"Tsu-kun..."

"Ojii-san came here to see who could be the next boss, Kaa-san... That could either be me or Onii-chan." The boy pulled her mother's hand towards his own, the boy pulled her towards the kitchen and cheerfully claim out loud,

"Didn't you hear what Ojii-chan said? Onii-chan has po-ten-ti-al to become great! Mama must make food to celebrate for Nii-chan!

"He didn't want to leave Yatsu-kun! Remember he quoted that family members shouldn't hate each other?" Nana hope that these important words get drilled in her son's head, but it didn't. Ieyatsu just stood up, eyes covered by his bangs.

"If my dumb brother did..." Ieyatsu's words sharpened with a tinge of venom, "Then why destroy everything I hold dear?"

It was a rainy day when Nana heard a soft knock by the door, "Tsu-kun?" The woman went outside their house and found a silent brunette, he was bruised all over. "Come inside Tsu-kun! You might get a fever!"

"I promised..." Nana stopped, looking slowly at her wet child. The child's eyes were orange and dull.

"I promised Nii-san I wouldn't touch his things anymore... Because I always break them."

"But Tsu-kun~ don't you remember?" Nana said with a hint of desperation, "I am both you and your Nii-san mother, making me the owner of both of you!"

"Really?" Tsuna's eyes suddenly dimmered back to brown, "Then that makes you an...Except...ion.." And the boy fell down, being caught just in time by his mother.

"Ma-maybe tha-that's why I le-left, Nii-san." An unknown voice answered, everyone immediately looked at that direction. The figure had brown spiky hair, honey brown eyes, wearing a white suit added with a white fedora. On his shoulder was a yellow lion cub, sleeping peacefully. All in all, a darker version of Ieyatsu, minus the spiky hair (Ieyatsu has a more tamed hair so his hairstyle is similar to his father, Iemitsu).

"Ta-Tadaima Kaa-san!" The brunette bowed to Nana then to the others, "I-I'm Ieyatsu's younger brother.." The brunette bowed again, not meeting anyone's eye, "Sa-Sawada Tsuna yoshi..."

Before the next chapter...

Tsuna: Hi Reborn!

Reborn: Why am I training another OC again? Answer me Dame-Tsuna!

Tsuna: HIIEE! *dodges lots of bullets* I DON'T KNOW!

Author: To be continued.

Tsuna: Help me! *Runs away from angry Reborn*