Warnings: Rated T for themes and language. I will be using both manga and anime b/c I like parts of both plots. And errors in grammar, spelling, etc.

Disclaimer: I do not own Katekyo Hitman Reborn anything, but I hope to bring my OC into the world of KHR.

Enjoy the story!

Italicized words = I use them to emphasize, when there is a different language, and when the characters are thinking. If it gets confusing - sorry.

We'll be meeting some characters in this chapter!


The morning after Reborn's entrance into their lives, Nadeshiko spoke to Reborn about the Vongola and even mentioned her and Tsuna's flames. To say the shrunken hitman was surprised was an understatement, even if Nadeshiko couldn't tell with his mask of calm and cool. Nadeshiko wondered if her father was part of the mafia, it being the reason why he'd been gone these past couple years, and Reborn confirmed it for her.

She was annoyed at her father for his complete disregard for their positions as relatives to a member of the mafia because they wouldn't even know the truth if he had died while he was away if it wasn't for Tsuna being a candidate and Reborn's presence.

She also asked him if he knew what her flames were and found out they were known as Mist, Cloud, and Sky flames. She figured her orange flames were Sky since Tsuna had the same flames, which meant she was also eligible for candidacy. However, Reborn explained that Tsuna was a pure Sky, making him the better candidate in addition to him being the elder sibling.

On a side note, his transforming lizard, Leon, was out of this world and just too adorable for her. When Reborn would take a nap without Leon needing to be his hammock, Leon would be on her shoulders as she read, did homework, and fed him some of her pocky.

It was the start of a marvelous relationship.

It's been a week since then and life's been interesting for her - not so much for Tsuna.

Instead of setting an alarm to wake up, she's been waking up to the sounds of explosions and Tsuna's screams thanks to Reborn's wonderful wake-up methods. Nadeshiko found out from Reborn that he arranged for Tsuna to play in his school's volleyball tournament and for him to meet a potential member of his family from Italy.

They had an agreement that she would be informed of most of his plans mostly so she wouldn't do things that went against them -intentionally or not. She was a Mist - sue her.

She hoped Reborn would be able to convince Tsuna to play. She knew he would always consider running away, but there were times in their childhood where he'd be a hero just for her. His eyes glowing orange while bravely standing in front of her when she was scared. Nadeshiko could see Tsuna being a just and kind boss to all his subordinates who wouldn't let his adversaries push him around. He wasn't physically or mentally strong right now, but he would do anything to help a someone in need no matter who they were.

He just needed a confidence boost to see his own potential. Even if that confidence boost was in the form of dying will bullets and a sadistic mini hitman.


Couple of days later…

Meeting Gokudera-san was…interesting. She never knew it was possible to see someone be so loyal that it looked like they had a wagging tail. Let alone be one of the people that tail wagged for.

Flashback

In the Sawada residence in Tsuna's bedroom...

"Hime-sama, I am honored to meet you! I vowed to follow Judaime till my dying breath. He valiantly saved me so I will repay this debt with my own life and will one day die protecting Judaime. Hime-sama, my service shall extend to you, the Judaime's esteemed younger sister, and will protect you with my life if necessary! Your wish is my command." His eyes sparkling with determination.

Nadeshiko decided to let it be but wished he wouldn't call her Hime-sama when she was younger than him and no one of real importance.

When mentioning her dislike of the title, he answered, "Hime-sama, I cannot speak to you so rudely! You, like Judaime, are deserving of respect!"

"Can't you at least call me Nadeshiko-san?"

"Judaimehime-sama"

"Nadeshiko-san"

"Nadeshiko-himesama"

"Nadeshiko-SAN"

"Nadeshiko-sama"

"…"

"…"

"Fine," She sighed fondly.

Flashback END

Nadeshiko found Gokudera endearing…once she got past his violent tendencies when others did things he found disrespectful to Tsuna or her and his inclination to start throwing bombs. Yamamoto-san was also an interesting addition to Tsuna's growing 'Family.' She was happy he was starting to make deeper friendships with his classmates because unlike her, he thrives with others around him.

She was content being an introvert and spending her time alone with a book or canvas. Don't get her wrong, Nadeshiko could be very sociable and in the spotlight, but preferred doing things at her own pace and at her own time.


BOOM!

….

Tsuna got the math answer wrong again, huh. She could feel herself sweat dropping at Reborn's ridiculous teaching methods. She was glad Reborn confirmed that Vongola paid for the damages when she asked him about the repairs.

She approached Tsuna's room hoping to save him from too much damage.

"Man…Why do I have to take lessons from a baby?" he groaned.

"Tsu-nii, I told you Reborn-san isn't a regular baby. Just accept it already and stop whining so you can focus on your work."

He grumbled and stared out the window. She knew he knew it was inevitable and he was just being stubborn again.

"What?! Wait! Oi, Reborn! There's something!" She watched as he pointed out the window at the odd little boy with a huge afro and cow onesie. No way…he has a missile launcher. The boy fell as the tree's branch was unable to hold his and his weapon's weight.

Hearing the doorbell ring and the following steps up the stairs, she could tell where this would go next. Reborn still ignored the toddler's grabs for attention. She kneeled to his crying form and dragged him into her lap.

"Nice to meet you Lambo-kun! My name is Nadeshiko," She couldn't believe the mafia had 5-year old hitmen. Children deserve childhoods no matter who they are."Lambo-kun, do your parents or guardians know you're here chasing after your 'rival' Reborn-san?" she asked as she calmed him with soothing pats on the head

"Yes~, Lambo-san told his Bovino boss that Lambo-san wanted to kill his rival Reborn! Bovino boss gave Lambo-san permission and TONS of Bovino's inventions to kill him because Lambo-san is the strongest hitman EVER and will one day become boss of the Bovino!"

"Okay Lambo-kun, do you want to stay for dinner? You can tell me all about how you and Reborn-san became rivals, ne?"

"GahHAHaHA! The great Lambo-san accepts his new Nee-chan and subordinate and will stay for dinner!"

"Yes, yes," she said amused at the now cheerful child and stood up while hugging Lambo. She turned back to Tsuna and gave him a smirk and a two-finger salute, "So~ that means that subordinate-san should hurry up and finish his math homework so he can play with the future Bovino boss and his imouto. Have fun Tsu-nii!"

"That's right Dame Tsuna, let's get back to work. You have to memorize this formula and-"

"What? Nade, how you abandon your brother to this demo-Ow! Reborn! Hie~!"

"'What' is not the answer Dame-Tsuna." BOOM!


Life with the inclusion of Lambo made each day an adventure for Nadeshiko. She's always wondered what it'd be like to have a younger sibling. In her last life, she loved playing with her younger cousins at family parties and in her new life she was the little sister.

That night at dinner after Nana had left to deliver a pan she borrowed from their neighbors, Lambo had attempted to kill Reborn with a knife he somehow got his hands on. Nadeshiko wasn't worried for Reborn like Tsuna was because she figured that Reborn was strong enough to protect himself if he claimed to be the strongest hitman.

Lambo and Tsuna were alike in that a little tough love worked wonders to get them to learn things. Plus, Reborn somehow knew just how much damage a person could take seeing how Tsuna hasn't gotten severely injured or sent to the hospital despite all the bombs and electric shocks he's administered to him. That didn't stop her from worrying about the little boy against the number one hitman though.

After Reborn swatted the knife back Lambo fell off his seat beside Nadeshiko and sniffled, "Gotta…stay…calm…I CAN'T!"

Next thing they knew, Lambo pulled out a large purple bazooka out of his afro, jumped in, and shot it off before any of them could react. Pink smoke filled the room and a tall silhouette stood in the middle.

"Yare, yare, for crying out loud…It's been awhile young Vongola Juudaime, Nade-neechan," A young man with the same dark hair, green eyes, and cow print theme as Lambo gave the siblings the familiar two-finger salute Nadeshiko loved to use, "Thanks for helping me ten years ago. I'm Lambo Bovino." He had no horns like the child Lambo did, had one eye closed, wore a leather choker with a silver bull's head cage amulet containing a purple gem, and a cow print button-up and black blazer that showed his bare chest and lower abdomen.

"W-What?!" exclaimed Tsuna. Nadeshiko was stunned that time travel actually existed here, but she should have figured with the existence of magical flames and mature babies.

"Anyone shot by the Ten-Year Bazooka will switch places with his ten-years-older self…but only for five minutes," Older Lambo explained.

"No way! This sharp-looking guy is the same Lambo?!"

"I mean, he does look a lot like Lambo-kun," she pointed out, "Lambo-kun you're fifteen now, right, since our Lambo is only five?"

He gave her a nod as he rubbed the back of his head with his right hand lazily.

"Then can you explain why exactly you think it's appropriate to not button up enough to cover your chest?" He made a choking sound and began to pale as her usual smile became sharper and dark aura spread around the short blonde, "There's no way my older self would ever let you walk out like that…unless, of course, you were about to go on a date and are trying to impress someone?" she finished quickly, tapping a finger against her chin and narrowing her eyes at the mature-looking teen with a smirk on her lips.

"Eghk, Nee-chan, you've always been so observant of this stuff. It's nice to be reminded of how well you'll treat the younger me," he smiled in nostalgia then turned to Reborn, "Yo, Reborn. Didn't recognize me, did you? But I'm Lambo, the guy you used to ignore."

The siblings turned to Reborn and deadpanned. The hitman was still ignoring the Bovino teen. Lambo's eye began to twitch in irritation until he reassumed his cool-headed persona.

"Yare, yare. I guess I'll have to resort to brute force. I'll show you how much ten years has changed me." Lambo took out his missing horns from his pant pocket and used his Thunder Set Electrico Cornada to charge at Reborn, "DIE, REBORN!"

His revenge was futile as Leon transformed into a cane and Reborn smacked him to the ground.

"Gotta…stay…calm…NEE-CHAN!" he wailed and dove for Nadeshiko. Holding her around the waist as she pat his head like she had just done to his younger self a couple of hours ago. Ten years hasn't changed him at all, she thought as comforted the upset teenage hitman.


One week later…

Nadeshiko was looking forward to visiting her brother at school. Like Namimori Middle, Midori Elementary had a Home Ec class where students were cooking cakes today. The difference for them was that the elementary students were given the option to bring their cakes home during their lunch break. She was still in awe of how long the lunch break is in Japan compared to the schools in America. She had made many mini cakes and after dropping off a few at home she traveled toward Namimori Middle with the rest of them.

In her last life, Nadeshiko enjoyed cooking and baking, mostly because she loved eating her confectionaries afterward. Her experience carried on to her current life and she was able to make a professional worthy green tea sponge cake with sakura flavored whipped cream. She had asked beforehand for her mother to get her the matcha powder and sakura paste needed to make the cake. And finished it off by sprinkling powdered dried strawberries over a stencil that left the shape of cherry blossoms on the top of the cakes.

To say she was proud was an understatement.

Approaching the front gate of the school, she noticed Namimori's resident demon.

Her and Hibari had always had an odd relationship in her opinion. They'd usually see each other in passing when she was heading home from the nearby dojo – she had practiced karate and judo in her last life and didn't want to lose those skills, plus it kept her fit and able to eat whatever she wanted – but met when they were younger on the first day she decided to practice flying with her Mist wings.

Flashback

When Tsuna was eight years old, and she five, he had to get surgery for a bean he had gotten stuck in his nose, so while Nana was supporting Tsuna at the hospital Nadeshiko snuck away from her father, who was taking a nap, to practice with her flame wings at a nearby playground. Since discovering them when she was two, she was capable of jumping up really high with their support and could come down relatively safely.

This time, however, she wanted to be able to move around like an actual bird. Or an angel. Either were cool. She'd be like Konan with her paper wings or that Star Village woman from Naruto who could make chakra wings. She was so excited!

When she located a secluded area from the rest of the playground that was blocked by trees, she concentrated on that warm feeling she'd always felt to generate her wings. Giving a tentative flap a few times, she readied herself for liftoff and eyed watching birds with determination.

I can do it! It shouldn't be that hard. Just gotta glide and flap... and hope I don't crash into anything. She squatted slightly and jumped up into the air. Hovering in place a few feet from the ground.

"So far, so good. I'm at least staying up in the air. Let's take it up a notch." She climbed a few more feet higher.

"Okay, it's working…Now to actually move in other directions," she mumbled.

Currently at about 10 feet from the ground, Nadeshiko didn't realize how much stronger the wind was and an unexpected gust made her lose control of her position. Her wings, unaccustomed to maneuvers that'd recalibrate her, flapped uselessly as she plummeted to the ground like a baby bird from its nest.

This was not part of the plan! She plummeted to another area from the breeze pushing her in a random direction. Next thing she knew - and after a lot of bumps, crashes, and yelps - she was laying on top of a young boy with dark raven hair and glaring steel-gray eyes.

"Sorry! I lost control for a second and ended up falling on you, are you okay?" she asked the silent boy who stopped scowling once he noticed her purple-flamed wings as she sat up on his stomach. He looks about Tsu-nii's age…maybe a couple of years older?

"Wow, what is that?" He hadn't asked her to get off him yet because she didn't weigh much to him and didn't feel the urge to separate himself from her like he often did with others. He was also more interested in her wings and had a hard time moving his gaze from the construction.

"Ano...I made them? I don't know what they are exactly, but I know how to make the wings now! I just wanted to try flying in other directions but up," she pouted as her cheeks grew red with embarrassment from her plummet, "…but it didn't turn out the way I wanted it to." She dipped her head to her chest in hopes of hiding her blushing cheeks.

"Hn, get off me Mashiko (rose finch)," the nickname came to him after seeing her reddening face and rose-patterned shirt.

"Ah! Sorry!" As she scrambled to get off, the boy observed her and her glowing lavender wings intently.

"Do you want to touch them?" she inquired slowly, knowing how much Tsuna wanted to touch them the first time they manifested and how much he enjoyed the feel of her wings once she was able to keep them from disappearing. The boy's eyes widened slightly in shock before he quickly composed himself - as much as a child could at least - and nodded silently.

She turned around and spread out her wings comfortably, the tips of them reaching the back of her knees and curling at the ends. She heard his tentative steps on the grass as he approached her then felt the lightest touch on her right wing.

He was careful with his brushing. Humming slightly in awe when the flames that covered the girl's wings didn't burn him.

"Ne, what's your name?" she asked, "My name's Nadeshiko Sawada."

"Hn, Kyoya Hibari, Mashiko."

Flashback End

"Afternoon, Hibari-san!" she greeted.

"Hn, Mashiko, why are you on Nami Middle grounds?"

She didn't mind the fifteen-year old's childhood nickname for her but felt the need to retaliate by calling him 'Lark-san' whenever they spoke to each other. She's only called him Kyoya when she needed his attention for something more important than teaching some thugs a lesson for breaking Namimori school rules.

"Technically, I'm not on the school grounds until I step past the gate. But anyway, I'm here to deliver some cakes I made in Home Ec today for you, Tsuna, and his friends. I thought you'd all like it for your desserts."

His steel eyes stared directly into her amber eyes then directed his gaze to the cake box and back to her again.

Understanding his silent message, she opened the box and handed him a plate of one of her cakes and a fork. "Thanks, Hibari-san! I hope you enjoy the cake! See you later!" She bid him a confident farewell knowing she was granted safe entry into the school.


A few minutes later…

"I can't believe you ate everyone's cakes Tsu-nii. That's pretty rude, ya know? It doesn't matter if it's to confess to your crush."

"Nade!" he denied, "I didn't mean to. Bianchi, Gokudera-kun's sister who has this poison cooking ability, switched Kyoko-chan's cake with one of her poison ones. And Reborn shot me again with the bullets, so I had no choice in this situation!"

"Uhuh, sure Nii-san," she deadpanned.

"And also, Nade, how'd you get into the school?"

"What do you mean how? Hibari-san let me in through the front gate."

"Oh, okay…What?!"


Review, please! Got any questions? Btw, depending on the question, I may not answer in order to prevent spoiling the story for you.

Hibari is my fave and I love when OCs get paired with him. I hope I do the pairing justice! I also wanted Nadeshiko to be Lambo's tie to the Vongola compared to having it be Nana. She will be a very important figure for the children joining the family (Lambo, I-pin and Fuuta) since I don't have her interacting with the main plots just yet.

I'm also thinking of writing some side stories on when Tsuna was brave for her and Hibari's POV of their meeting. What do you think?

Thanks for reading! Special thanks to all my followers and for those who even favorited my story!

Special special thanks to merendinoemiliano for reviewing so much! Thanks a bunches!

1/7/20