Thanks for reviews, favs, and follows! *dancing*

Warning: unbeta. English is my second language. ASL is my first. Yep, I'm Deaf. *peace*

The timeline is before Kokuyo Arc.

To Allyssa Mervillion: I can't answer all your questions since it would spoil a lot of this story. Although, it will answer your questions once I write this story as I go on. However, I could answer one of them. I won't abandon this story. It seems a lot of readers enjoy it and like it so, I will continue it. :)

I don't own Katekyo Hitman Reborn.

Enjoy~? :)

Location: Namimori, Japan

Sawada Resident

Tsuna's Bedroom

Yuni sat on her legs while sweatdropped when she watched Tsuna folded his arms on the coffee table with his head on it while moaning in miserable. Yamamoto sat across from Tsuna while Gokudera sat next to a brunette boy. The emerald-haired girl has Reborn sitting on her lap which she still doesn't know why he wants to continue to stay in her arms, but she won't complain. Because she still feels that small warmth after she discovered that it might have something to do with the baby hitman.

Then Tsuna lifted his head and glanced at Yuni with curious frowned. "How come you are not joining with the girls downstairs?" he asked.

Before Yuni could answer, Reborn beat her to it. "She will be your tutor for languages, Dame-Tsuna." He said in his squeaky, high-pitched voice. Tsuna frowned at Reborn with suspicious eyes. "And also, she is now part of your Famiglia."

Tsuna's eyes widen in stunned as his jaws dropped at the drop-bombed news while two other boys were surprised to hear it. "W-what?! Reborn! How many times do I have to tell you! Stop bringing innocents into this Mafia thing!" he pulled his hair with disbelieved.

Reborn suddenly has his gun pointed at Tsuna's head. "Be quiet Dame-Tsuna. She is already involved." 'By having a sealed Sky inside of her. Sooner or later, once her seal breaks, there will be elements fighting over for her flame.' He mentally added.

"W-wait, does that mean she knows…?" Tsuna hesitated stared at Yuni who smiles shyly at him and nodded her head. Tsuna groaned as he dropped his face against his palms. "Of course, she knew." He mumbled in resigned.

Yamamoto chuckled. "Haha, this is great! We have a new player in this Mafia game!" Yuni sweatdropped at his carefree attitude about this 'Mafia'.

"Shut up baseball freak!" Gokudera snapped at the baseball star with annoyed. Yamamoto grinned at the silver-haired bomber who hisses at him while Tsuna slumped his shoulders.

The emerald-haired girl carefully adjusted her legs with Reborn on her lap as her arms wrapped around him, loosely. Then the brunette boy sighed softly with a frowned. "I wonder if we could get Bianchi out of the kitchen for a little while…" he mumbled.

"Why?" Yuni asked with curious. "And who is this Bianchi?"

Tsuna glanced at her as Gokudera clicked his tongue sharply while Yamamoto chuckled. "Bianchi is Gokudera-kun's older sister. And… her cooking is…" he hesitated with sheepishly smile as sweatdropped appeared.

"Her specialty is poison cooking. Anything she cooks, it turns to poison." Gokudera blurts it out the information with digested and grimaced face.

Yuni blinked. "Oh." She has no idea what to say about that. 'Since her specialty is poison cooking, so that means she is from the underground?' she mused, filed it away in her mind.

Gokudera turned his attention to Tsuna. "If we can do that, they should be able to make normal chocolates. It's a good idea, Juudaime!" he grinned at the soon-to-be Mafia Boss now that Yuni knew that Tsuna is training to be the Boss as she understood the nickname.

The boys were thinking deeply to get Bianchi out of the kitchen while Yuni stared at them with disbelieved. 'Are they that desperate for chocolates? Were my cookies not good enough?' Yuni couldn't help but feel slightly hurt by this.

Reborn narrowed his eyes at Tsuna. "Dame-Tsuna." Suddenly, a gun in his hand pointed at Tsuna.

"HHEEEIIII!" Tsuna dodged the bullet which was a very close call. "What was that for, Reborn?!"

"Was one goodie not enough?" Reborn dare Tsuna to reply to negative answers as his eyes glint. Tsuna blinked at Reborn then his eyes lit up with understanding then glanced at Yuni.

He could see Yuni's blue eyes were slightly hurt. "Oh! Yuni-san's cookies are delicious, truly!" the emerald-haired girl blinked at him in surprised.

"I agreed with Tsuna, hahaha!" Yamamoto chuckled as he ate some of the cookies she bakes. "It was very good. I couldn't stop eating until it was all gone."

Gokudera clicked his tongue but he nodded his head, agreed with them. The cookies were very good.

A grateful yet shy smile appeared on her face. "Thank you." Now that she knew her friends like her cookies, then that means the boys must want some more chocolates. She turned to Gokudera. "Gokudera-kun, does your sister have a way to control poison?"

"No." the silver-haired blurted it out without hesitation.

Tsuna frowned. "Then, does she have any weaknesses?"

"No." once again, he answered without hesitation.

Tsuna stared at silver-haired boy with disbelieved. "He answers without hesitation." He mumbled.

Gokudera crossed his arms. "My sister lives in a world of her own. There's nothing in the world that scares her." He answered, seriously.

Reborn turned his head to Tsuna. "You'd better hurry, time's running out." He reminded the brunette boy.

Tsuna slumped his shoulders once again as he crossed his arms on the coffee table. "You're right…" he dropped his head. "If we only had something that could distract her…" then he started grabbed his hair while slightly panicked. "Man, if we don't get Bianchi away from the kitchen soon. There must be a way!" then suddenly, he and Gokudera got an idea at the same time. They both leaned forward with eager. "Adult Lambo!"

Yuni blinked while Yamamoto watched them with a curious and happy smile. "Oh, that strange cow-dude who shows up randomly?"

"Right!" Tsuna nodded his head. "We could do that. If we use adult Lambo, she'll mistake him for an ex-boyfriend and chase him to the ends of the Earth!"

Yuni frowned disapproved of this while Reborn hummed. "To get her revenge, huh?"

"That's wrong." Yuni blurt it out. All heads turned to her in surprise as she was also, shocked to speak up so sudden.

Gokudera narrowed his eyes at her. "Why?" he demanded her answer to explain why his beloved Boss' wrong.

Yuni licked her dry lip nervously while she unintentionally touches Reborn's fedora's brim as she gently fiddles with it. "You… you are asking this adult Lambo as a bait. He's innocent and it's not fair to use him because he looked like her ex-boyfriend… plus, w-won't that make her really upset? For her to see her ex… that doesn't seem nice. It might actually hurt her feelings." Yuni attempted to explain her disapproved of this plan.

The silver-haired boy scoffed while Yamamoto scratches his cheek with a sheepishly half-smile and Tsuna frowned deeply with thoughtful eyes. "I guess you're right."

Unaware that Reborn approved of Yuni's words. 'Not bad. With more training, she'll make a good advisor.' He mused, making a mental list of her future training. 'With female's viewpoints, it would balance more in Vongola Famiglia.'

Suddenly, a childish voice speaks up loudly which caught all of their attentions. They turned to the opened window and saw Lambo flew inside the bedroom with a pink gifted box on his afro. "Just try and get me up here—" he attached himself onto Gokudera's face.

The silver-haired punk twitched with irritated. He grabbed the cow-kid and slammed the kid against the ground. "Get away from me, you stupid cow!" he snapped then took out his dynamics which stunned Yuni.

Her blue eyes stared at the silver-haired punk who is holding back by Tsuna and Yamamoto. "I'll send you to hell right now!"

"Now, now…" Yamamoto attempt to calm the short-temper punk.

"Calm down, Gokudera-kun! If you send him to hell here, ten years from now he'll be nothing but bones!" Tsuna tried to be a peacemaker.

The emerald-haired girl shook her head in incredulity. Then her blue eyes glanced at Lambo who is crying from the pain. She reached to the cow-kid, hesitant then pats the afro gently. "A-are you okay?" the little cow sniffles as he lifted his head at her with curious teary green eyes. A warm smile appeared on her face. "You are not hurt, are you?" she asked softly.

Lambo blinked his tears away and shook his head while he stared at her in silence. Yuni shifted her position which Reborn had to forced removed himself away and jumped onto the coffee table. Yuni gently picked Lambo up on his tiny feet on the floor. Yuni gently pats the dirt away from the cow-suits. "Your name is Lambo, right?"

Lambo sniffed. "Lambo-sama is Lambo-sama."

Yuni's blue eyes soften. "My name is Hoshizora, Yuni." She introduced herself. "There, all clean." She added as she pats Lambo's head a couple of times.

Lambo wrinkles his nose at her. "Hosi-ora?" he attempted to say her surname which made her giggled.

"Ho-shi-zo-ra. It means starry sky." Yuni explained to Lambo who blinked at her.

"Star-nee-chan." Lambo proclaimed that it's her name official which made Yuni giggled once again and pats Lambo's head once again.

"Alright." Lambo beamed at her while the boys watched the scene with interested.

Yamamoto chuckled. "She's good with children." He was amazed.

Tsuna shook his head. "He didn't try to make her as his servant…" he mumbled with slightly jealous and curious. While silver-haired punk boy scoffed as he glared at the cow-kid and Reborn smirked with intrigue.

Suddenly another five-year-old girl jumped through the window with serious frowned on her face. "Get I-Pin's chocolates back!" she flies kicked Lambo who fell forward as a large purple bazooka suddenly appeared out of his afro which Yuni watched in dumbfounded.

When the bazooka flew over and capture two kids into. Pink smoke appeared suddenly. Once the pink smokes cleared away. In replace of kids is now teenagers. A pretty Chinese girl dressed in uniform with a ramen-take-out box next to her and a teenage boy with messy black hair lying face down on the ground.

When the teenager boy lifted his head, covered in red blood.

"L-Lambo!" Yuni's eyes were gotten wider. 'How is that possible?!' she observed the teenagers in front of her once again.

The Chinese girl glanced around with confused. "Where am I?"

"Tsuna's house from ten years ago." Reborn answered, calmly.

The Chinese girl gasped. "This is bad. I was supposed to deliver this spec—" she stopped when her eyes landed on Yuni. "L-L-Lambo." She stuttered in shocked, nervous, and sadness.

Lambo groaned as he sat up. "Wha—" his throat hitched when he saw Yuni. "Star-nee-chan…" his eyes were filled with a mixture of disbelief and longing.

"U-umm… you're… Lambo?" Yuni had to ask, she just couldn't believe that a large bazooka was responsible for making the kids switched older versions. 'Again, how is that possible?'

Lambo's eyes filled with tears. "Star-nee-chan!" suddenly he wrapped his arms around her which makes her froze with lost and confused while the Chinese girl pressed her hands on her mouth with teary eyes.

Reborn narrowed his eyes with suspicious at this reaction. 'Something happened to Yuni in ten years of the future.' While the boys stared at the scene uncomfortable and worried.

.

..

…

Aesthetic Sky

Chapter Three

"Sweet or Bitter"

…

..

.

Yuni is stuck in an older version of Lambo's arms, it's making her rather very uncomfortable and nervous in this awkward position. She could feel the wet liquids on her whether its tears or blood. "L-Lambo?" Tsuna speaks up, worried and anxious. "W-what happened to you? A-are you okay?" he doesn't know if he wants to know why Lambo is bleeding nor why he is crying over Yuni.

Lambo tightens his arms around Yuni which made her blush. She never gets hug by an outsider before, she has hugs with her family before but that was it. The Chinese girl sniffed softly and Reborn glanced at her. "I-Pin." I-Pin glanced down at Reborn who is staring at her emotionless. "What's going on."

I-Pin lowered her hands as she bit her lips. She glanced at Lambo then back at Reborn. "Well… sh—" Lambo stopped the Chinese girl. "I-Pin." His voice was raspy and rough but there's a stiff warning in his tone. "Remember the rules."

I-Pin flinched as she glanced away ashamed and guilty. "I know…" she mumbled, sadly as she closed her eyes. She cleared her throat. "Excuse me, I need to deliver this special ramen Valentine's Day to Uncle Kawahira." She picked up her ramen-take-out box and quickly leave the room in tense silence.

Then a beautiful older teenager girl with pale pink hair that grown to her mid-back, green eyes, fair skin and dressed in a purple dress with a dark pink hoodie and black apron with a white skull on. She appeared at the doorway with a smile on her face as she is carrying a glass bowl with a whisk in her hands. "Reborn, could I borrow you for a moment?"

"B-Bianchi here!" Tsuna whispered in fear and Gokudera glanced at her face and paled. He fainted almost immediately which concerned Yuni, even though she is stuck in Lambo's arms. 'So, this is Gokudera-kun's older sister?'

Bianchi lifted the bowl that has a suspiciously purple and black mixture of smokes coming out of the mixing bowl. "Would you prefer them to taste bitter or sweet?" she asked with blushes.

'Huh? Why would she ask Reborn?' Yuni mused with curious.

"T-this is bad…" Tsuna fear for Lambo who flinched when he heard her voice. Bianchi blinked at a boy hugging an awkward girl in his arms. Her eyes narrowed then gasped when she recognized him.

"Romeo! Die!" she took out a whisk that covered with chocolates as Lambo immediately detached himself from Yuni and dodged Bianchi's whisk which poorly implants itself in the ground.

Yuni yelped in shocked as she moved away from the chaos and nearly stumbled onto the bed with wide eyes.

Bianchi suddenly took out pasta in a package. "Poison Cooking: Pasta Skewer!" in her hands filled with uncooked pasta. "Prepare to die, Romeo!"

The emerald-haired girl watched in morbid curiosity and before she knew, Tsuna is in his boxer once again as he is carried Lambo in his arms. "I'll get Bianchi out like my life depends on it!" Tsuna turned around and jumped out through the windows. "Bianchi, follow me!"

"Stop right there, Romeo!" Bianchi followed them out of the windows.

After a few seconds, Reborn was standing on the windowsills while Yamamoto peeks out with amazed. "Wonder if he'll make it." The baby hitman mused out loud with a smirked on his face.

Yamamoto hummed with interested and turned his attention on Yuni who is sitting on the bed with baffled. "I-is this normal?" she asked the baseball star.

"Haha, welcome to the Mafia game." The tall boy said with a carefree grinned.

Yuni sweatdropped then her blue eyes landed on Gokudera who unconsciousness while holding onto his upset stomach. "Is he okay?" she asked with concerned, slid down the bed and crawled to the silver-haired boy. She gently placed her palm onto his forehead to check his temperature.

"Maa, maa… he's fine. He gets stomachache like this every time he sees his sister." Yamamoto answered as he took a seat on the cushion, relaxes.

The emerald-haired girl was wariness by his answers. 'This day is very… perplexing.' She shook her head and tried to help the silver-haired boy by rolled onto his back and gently combed his hair in hope to soothe him. She remembered that she used to get sick and her mother used to comb her hair. It made her feel warm and comfortable.

Reborn watched Yuni comfort the ill boy with satisfied. 'Good. With a caring personality and intelligent mind, she can get through. Although, I need to find someone who can teach her to use defensively.' He mused, making plans after plans after plans, after all, he is the World Strongest (Greatest) Hitman.

.

.

Later…

"Thanks for waiting!" two feminine voices walked in Tsuna's bedroom with pots in their hands. Yuni noticed Kyoko is carried milk chocolate flavor and the unfamiliar girl who dressed in different school uniform carried white chocolate flavor. The girl noticed Yuni who is confused. "Hahi? I never saw you before." The girl asked with curious.

Tsuna blinked and glanced at Yuni then understand. "Oh, this is our new friend, Hoshizora, Yuni." Tsuna smiles at Yuni. "This is Miura, Haru." He introduced the girls to each other politely.

Haru smiles widely at Yuni. "Nice to meet you! But Haru should warn you that Tsuna-kun belongs to Haru!" Yuni blinked in surprised and Tsuna groaned softly while Gokudera glared at the girl.

"Juudaime doesn't belong to you, woman!" the silver-haired boy snapped and Haru pouted at him.

"Says who!" Haru glared at Gokudera after she placed the pot on the coffee table. They both bickering at each other while others are used to it and looked over the pots of sweets.

The brunette boy took a whiff. "Smells good." He can't wait to taste it while Lambo jumped around excited.

"Lambo-sama is going to get some chocolate!"

Yuni overlooks the chocolates. "Are they chocolate fondue?" she asked Kyoko with interested who nodded her head with a smile.

"Hai, you can eat it with crackers." Kyoko said, then her eyes made contact with Yuni's eyes. "Would you like to try some?" she offered.

The emerald-haired girl smiles back shyly as she is not used to friendly acts from females. "Thank you for the offer, but I don't particularly like sweet much. I preferred bittersweet flavor." She explained, gently.

"Oh? Isn't that what Reborn-kun likes?" Kyoko asked the baby hitman to confirm who nodded his head. "That's what I thought, I wasn't too sure about it earlier which is why Bianchi-san went to ask you. Although…" Kyoko touched her cheek with confused. "…she never got a chance to, but she did make something!"

"That's right." All heads turned to the door where Bianchi appeared with soft blushes on her cheeks. "I made the crackers." A plate of full purple crackers with suspiciously purple fog coming out of it.

Gokudera paled at the sight of her then fell on his side while clenched on his painful stomach and Yuni frowned with concerned at the silver-haired boy.

"B-bianchi!" Tsuna was surprised to see her while Yamamoto grinned widely with sweatdropped. Haru and Kyoko smile at Bianchi while Yuni watched with interested and Reborn who is sitting next to Tsuna, in silent.

The brunette boy frowned with confused. "So, you didn't make the chocolates… but then… hey Reborn…" he glanced down and noticed that baby hitman is asleep. "Don't go to sleep!"

Yuni glanced over to Reborn and smiles softly. 'He looks cute… even Leon too…' she mused with amused giggled. She is starting to enjoy this day with her friends even though there's one thing that is still bothering her. 'What is that flame thing? Why do I keep getting a craving for that flame? Just… what is exactly going on?' she knows the basics of Mafia and underground, but she doesn't know anything about the strange bullets and the flame. Not to mention, that Tsuna is stronger, faster, and unbeatable it seems. Something tells her that there's more into this Mafia world than she thinks. 'But should I even join this family? I'll be in the Mafia world…. When my father's the one who worked hard just to make sure I don't get involve nor recognize my exist in it… I don't know what to do…'

Yuni's Love Interest

Who and Why? (Convince me to place ANY CHARACTER'S name in a list of a vote for Yuni's lover) *grin*

Reborn: 10 (I'm not surprised to see this, to be honest. This guy is a freaking sexy god that must put in a vote.)

Tsuna: 6 (Again, I'm not surprised to see this one either. Tuna-baby is adorable.)

Fon: 1 (This, I am a little surprised but was expect it popped up in a review, actually. He does seem to have similar to Yuni's personality except he's Clam before the Storm. Which of course, he is related to Hibari fucking Kyoya)