This was requested by negima-san! :3

Sorry that it took a while, but I hope this will satisfied you?

To readers: FEEL FREE to request! (Yaoi only), any manga, animes, novels, and so on. Whatever you want, any requests, I'll happily write Tsuna pair with whoever the dude is! xD

Warning: unbeta. English it my sceond. ASL is my first. Yes, I'm Deaf. *peace*

I DON'T OWN ANYTHING! None. Nada. *sob* Zero. Nope.

Enjoy~ :3

Sky's Dimension Love

One-Shot: II

Katekyo Hitman Reborn/BTS (Bangtan Boys)

Sawada, Tsunayoshi/Jungkook -BTS Members ft. Gokudera, and Yamamoto -10th Vongola Guardians

Requested By: Konoha loves negima

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Namimori, Japan

Sawada's Resident

Tsuna's Bedroom

Time: Morning of 6:23

It's very unusual for Reborn to discover that his student is already up and dressed. Not only Tsuna is dressed, but he wears nice clothes that Reborn couldn't help but suspicion. He narrowed his eyes at Tsuna who looked very excited yet nervous. He glanced from the corner of his eyes, he also noticed Nana is dressed nicely as well while she is cooking a breakfast meal.

Tsuna paused when he seemed to remember something, he stood up. "Ah, I almost forgot to get the present!" he turned around, run upstairs to his bedroom.

Reborn took this chance to ask Nana. "Maman, what's going on? Why are you and da- Tsuna are all dressed up?" he asked with curiosity and suspicion with an innocent face.

Nana glanced over her shoulder with beaming smile. "Tsu-kun's important friend is coming over! It's been a few years since they saw each other." She answered happily.

'Important friend? There's no report about that, nor pictures or anything mention of Tsuna's friend in the past.' Reborn mused with a puzzled frown. At least he knew who to blame for the lack of information about Tsuna.

After the breakfast meal was ready, all household gathered and ate. They also noticed Nana and Tsuna appearances as they were curious as well. They learned that Tsuna's important friend is coming over soon.

After an hour or so, a car pulled up in front of the Sawada Resident that caught Reborn's attention. He narrowed his eyes at the expensive black car. 'Coming from the wealthy family.' He is going to search and find out who this person that is important to his dame student.

A young man climbed out of the backseat, adjusted his jacket while Reborn observed the male. He has dark brown hair, brown eyes, fair skin, and he is easily put in the "Pretty Boy" category. He wears a dark red shirt, with a black leather jacket over it, dark blue jeans tucked into black combat boots. He walked up to the house, knocked on the door and shove his hands into his front pocket as he waits.

Reborn watched in silent when Tsuna opened the door. His face perked up in bright happiness as his eyes landed on the male. "Jungkook!" Tsuna jumped into the male's arms who smiles softly.

"I miss you, my little bunny." Reborn's ears perked up at the language. 'That's Korean, so he's from Korea…' to Reborn's surprises that Tsuna responds back in Korean, almost perfectly. '…that baka, he didn't tell me that he knew the Korean language.' He mused with irritated as he is itching to reach for his gun.

Reborn glanced back at the tender moment of 'Jungkook' and his student. Tsuna beckoned the male inside of his house. Before Jungkook walks in, he glanced over at the tree where Reborn is hiding. He smirked at the cursed baby and walked inside the house.

The Hitman frowned deeply. It's time for research and gets the bottom of who the hell this Jungkook really is.

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.

.

'Fucking shit!' It's rare for Reborn to cruse like this, but he makes it expectation since he discovered the information about Jungkook's background. The cursed Hitman immediately run down through the short path that leads back to the Sawada Resident. 'That Dame-Tsuna! He better not kill them!' he mused with concerned and anger.

When Reborn arrived at the place, he went straight through the opened window with Leon transformed into a gun. He stood on his feet with his gun pointing at Jungkook. He blinked at the scene in front of him.

Jungkook is sitting on the couch with his arm around Tsuna's waist who is blushing. Jungkook raised his eyebrows at Reborn while Tsuna stuttered at Reborn with disbelieved.

"Reborn! Put that gun away!" Tsuna frowned after he finally found his voice.

Reborn glared at Jungkook. "Tsuna. Do you know who this is?"

Tsuna blinked as he was taken aback by his tutor's question. "Of course. His name is Jungkook, we've been friends for years." He answered.

"…it seems that he didn't tell you." Reborn noticed Jungkook's knowing eyes. 'He knew that I knew about his background. This guy is dangerous.'

The soon-to-be Boss tilted his head with confusion. "What are you talking about Reborn?"

"Should I tell him?" Reborn asked the dangerous male who is cuddle with his student.

Jungkook smirked softly. He turned to Tsuna who is staring at him with large curious eyes. "I belonged to Bangtan Familiga, allies with a few familiga from Italy and Japan." He simply throws the bombshell and Tsuna gapped. "And I am aware that you will become the Decimo of Vongola familiga. The Sky Flamer."

The sound of safety off from Reborn's gun. "Get away from him, Tsuna."

Before Tsuna could protect, his couple of his guardians arrived through the front door.

"Juudaime! I'm here to save you!"

"Tsuna!"

Tsuna groaned when he saw Gokudera holding up dynamites while Yamamoto held up his sword. "W-wait-" he was cut off once again when two males suddenly arrived through the balcony and stood in defense position.

One male has blue hair, dark eyes, fair skin and wears a white loose tank top with blue fennel shirt tied around his waist, black ripped jeans, and white sneakers. He has two daggers in hands. Another male has pale indigo hair, dark eyes, fair skin and wears a black sweater, dark jeans, and black high-top shoes. He has a Bo Staff. They both stared intensely at two Guardians.

"Gokudera-kun, Yamamoto-kun, please calm down!" Tsuna stood up, walked to his friends with pleading eyes.

Jungkook frowned at his friends. "V, Suga…" he stood up as well, with questioning eyes.

"Boss told us to watch over you." V explained and Suga nodded his head.

Jungkook sighed softly as he runs his fingers through his hair. He turned to Tsuna. "Sorry Tsuna, they are a bit protective of me since I am the youngest in the group." He half-shrugged and Tsuna sighed.

"I'm sorry about them, they are protective of me because of …well…" he shook his head. "I didn't know you are involved with Mafia." He whispered softly with thoughtful eyes.

"At least you don't have to worry about my future. There's no need to avoid me, right?" Jungkook asked with hope. Tsuna bit his lip in silent.

Reborn narrowed his eyes, he is not liking this. "What the hell is going on?!" he snapped in frustrated.

Jungkook glanced at the cursed Hitman. "You mean, you haven't figure it out?"

"Figure what out?" Reborn gritted his teeth as he didn't move his gun away from Jungkook. The Korean male smirks widely. He walked toward to Tsuna who is showing his full trust in him.

Before Reborn and two Guardians stop Jungkook. They halted in a mixture of shocked, confused, disbelieved, and slight understood.

Jungkook pulled Tsuna gently toward him and pressed his lips against the tiny brunette's lips.

V and Suga watched calmly as they already knew the relationship between Jungkook and Tsuna for years.

When the Korean male pulled away with soft eyes while Tsuna's face is red and hide in Jungkook's chest. Which he has happily wrapped his arms around Tsuna. He glanced at the cursed Hitman. "Tsuna is my boyfriend and promised husband." Jungkook said in his native tongue with a cheeky smile.

Reborn twitched while Gokudera was shouting in protecting as Yamamoto held him back with a weak laughed. V and Suga glanced at each other with amused eyes.

This is going to be interesting from then on.