Story: Katekyo Hitman Reborn!
Title: Introductions
Pairing: mainly 6927, 1827, contain 8059 and slight X27
Rating: NC-13, but shall increase through the chapters
Warning: Yaoi.

-Chapter 4: Sorrow-

After Tsuna changed into a dry, clean set of cloths, he was then dragged by Reborn to what looks like an office. A desk in the center of the room surrounded with book shelves full of thick, old literatures and anthologies. The young Vongola heir paled, he was aware of this but when it were to happened for real he got all panicked. These three years, he have proven to his tutor that he's the type that learn better with his body, hardly did he want to place his own category with Ryohei, but he guess that might be true.

He whine when Reborn place what looks like a history text book on the desk. After a hard hit on the back of his head, the hitman told him that it's important for answering questions the higher ranked might be shooting at him during the introduction ceremony to see if he worth the position. Reborn couldn't stand to let both the Ninth and Iemitsu loose face.

Tsuna could look for hundreds of complains but though it would be wiser not to say it. Feeling violate, he made low grumble. The Acobaleno study his feature, before stating that he's not the only one on this, for his Guardian is going to have to know some of these things too. With that, Tsuna felt a great deal of guilt; it is as if he's the one who dragged the rest of them into this.

The large literature text book is all written in Italian, his jaws dropped, simultaneously turning to his tutor.

"How the hell am I going to understand all these?!" The young boss protest.

But someone like Reborn is always prepared. He took out a Japanese translated version out of 'who knows where' and unceremoniously drops it in front of him.

"These have no illustration and photos on them, unlike the official book. Be thankful, your Guardians except for Gukudera and Mukuro have to read from the copy I gave them. That would be much more boring."

Tsuna gave a long sigh and start flipping through pages of the old book. What really caught his attention was a large picture of a man who bares a resemblance to him. The man wares a faint smile and sharp, valiant pair of eyes, sitting sagely in his elegant chair which looks more like a throne.

"This person…"

"Ah…" Nodded, Reborn "Vongola Primo…"

The brown hair boy flips more pages, eyes hoisting left to right. He sees Vongola Secondo, more pages then, Terzo, and Quarto, and Quinto, and Sesto, and Settimo, and Ottavo… 'No Nono?' He guessed this is the unupdated version. A few more pages and he pause, afraid to look at more.

"…I saw all of them in my vision through the Vongola Sky ring…, …," Their faces are vague, but he can still recognize them, "they've already showed me some of its… history…" The young heir lowered his head, his eyes hid under the shadows of his locks of hair.

"…." Reborn looks at him.

"…I'm not sure if I want to…" Tsuna's voice is shaking, along with his body.

"Even though you know those pass, yet you chose carry those sins and becomes Vongola Decimo for every one's sake."

"…"

"Once you have chosen this path, you can't cry any more."

"B-but…" His voice starts to stutters.

Reborn gave a light tap on the boy's hand, which he has unconsciously ball into a fist. "I know it's hard. But remember this…, you're not alone. Your friends are willing to share this burdens and sorrows with you. If not, they wouldn't be here, by your side right now."

The boy slowly lifts his head to look at his tutor, a minim of tears at the corner of his eyes.

The baby's expressionless face offered him a small grin. "So far, you have made all of us proud, Tsuna"

With that, a smile returns to the young boss. He relaxed his fist and places a thumb over Reborn's tiny hand. "Thank you…"

"Huh…" The hitman gave a mere chuckle. The moment only lasted for two seconds, before Reborn flick a middle finger at his pupil's forehead, leaving a noticeable red mark. Reborn had really got way too much strength for his size.

"Now it's not the time to get all depressed, you've got to prove yourself before our eyes."

Tsuna smile tiredly "Guessed you're right"

The brown hair boy had only finished the part about war between Vongola and Tomaso family, when his mentor said that he want to go and check whether his Guardians is doing their part studying, and practically left the room.

As soon as the door shut with a click, Tsuna lean back in his seat, literally feeling bore. He closes his eyes, enjoying the trifling break while he can.

Faint squeak of the door can be heard. He wonders if Reborn had forgotten something to be back so soon. The brown hair boy lit open one of his eyes and wince in surprise, sitting up straight.

"Kufufu… Sorry, do I need to knock?" A boy with mix-matched eyes closes the door gently behind him.

Tsuna's head went blank seeing the blue hair, Reborn is not with him now and he can't help getting panicked. "Oh!...M-Mukuro…, do you need books from this room or something?" questions only a simpleton would asked.

The Mist Guardian lifts his eye brows, before smirking. "No, I only came to this place because I heard you were here."

For Tsuna, this person is just as creepy as Hibari. "…What do you want?"

"Kufufu" A mischievous grin. "Simply continue what I've left off earlier."

Goose bumps start running over his body again. The young Vongola wonder if he's going to take over his body like he has always wanted now. He could feel cold sweat running along the side of his face. That smile looks so matte; he lavishly slides his chair backward with his feet.

Seeing the young boss got so inordinately stiffen, Mukuro feels like deriding. "No need to get all tensed up like that, Sawada Tsunayoshi."

Now the young heir is all confuse.

"Remember, I had a promise with the CEDEF's leader?" The taller boy walks closer and moves around his desk. "Had I do anything to you now, your dear father would be handing me to the Vedecare again. And I don't want that."

"Then…what exactly are you plan on doing?..." Tsuna glare at him with suspicious written all over his face.

"Kufufu" a wider grin. "I just want to have a good look at you…, my prey"

That didn't cease the smaller boy's worry one bit. The older boy negligently pull his chair closer and towered over him. Tsuna made a small jumped when a hand blush his lock of hair away from his temple.

"Humm…, looks like the Acobaleno is as strict as ever…" Mukuro run his thumb back and forth on the swollen, reddish area on his forehead, still smiling.

It has really been a while after the last time he meets Vongola Jyuudaime. He has earnestly wanted to meet him. For some unclear reasons, but he is sure that part of it was to make sure that the younger boy is in good condition before he process the body. Yes, that has to be it. But he is so eager to have a good private time that he asked Tsuna's father for help.

Not good enough of a liar the old man is, that person still wants Mukuro to be his son's Mist Guardian. And even when the opportunity is right in front of him, the stupid perfect of Namimori middle get in his way. He has to wait until the baby hitman left the room.

Sawada Tsunayoshi turns out pretty well during these three years. He was practically struck dumb when he first laid eyes on the younger boy, while Chrome was embracing him. The boy has managed to grow taller, his shoulder a little broader and figure better toned from countless menacing situations and restless trainings. His longer hair suits his young looking face very well. Though his personality vaguely changed, but somehow, that large chest nut color pair of eyes look more or less bolder.

Mukuro was absentmindedly stroking the young Vongola's forehead… and cheek. His thoughts was intervened when the small boy awkwardly shift his head, making his hand pause, on the boy's neck. He utterly enjoyed the apprehensive look on Tsuna's face. Sometime he wonders if he is being sadistic.

"Kufufu…" The blue hair boy can't stop grinning.

Uneasiness is written all over Tsunayoshi's face, he looks like he desperately needs something, anything to distract himself. His gaze somehow rested on the older boy's right eye.

"Um…" The brown hair boy still looks afraid, "Those scars around your eye and… limbs,… that must have hurt really bad…"

Mukuro crooks his head before stating blankly, "This is nothing compared to what I've faced in the Estraneo family…"

"T-that's terrible!" Tsuna looks trouble.

Smile fades from the taller boy's face, his mix-matched eyes narrowed, "I don't need your sympathy, Vongola" He said it in cold voice.

Mukuro ignored the panicked boy and continue. "I'm only your Guardian now because things would be less troublesome for me on processing your body."

Tsuna stop shivering, the fear from earlier seems to vanish, "…No…, I didn't feel sorry because of you being my Guardian or subordinate…, but it's a feeling one simply could feel for another person..."

"Ha ha ha!" The taller boy burst into laughter, "Why…, you never fail to amuse me, Sawada Tsunayoshi!" The ensuing moment, he tightens his grip around Tsuna's throat. "But mafias are all the same, I've seen too much."

At this point, the brown hair boy made a sorrowful face simultaneously looking away. "...Maybe you're right…, I know very little about mafia…, what I've seen is just a tiny part of it." Tsuna lowers his head, "Those things are horrible and I never would want to repeat it."

"…I'm very sorry, but… I'm here because I want to protect the people important to me." He smiles miserably lifting his head only slightly. "You had helped us getting through things…, and I considered you a friend…"

"…" Mukuro subconsciously loosen his grip around the smaller boy's throat, speechless.

"…I don't know if I would be able to make things better, brings joy to everyone as well as meet everybody's expectations…" The young Vongola forced a chuckle. "It looks like I have a long way to go…, cause obviously I'm not a genius like Gokudera-kun. I'm neither talented like Yamamoto, nor enthusiastic like Ryohei-nii… As much as I don't want to be a burden, I always ended up needing their support and backups."

Tsuna unintentionally touch the larger hand which is currently around his neck, merely meeting the other boy's gaze "I'm new to this…But I am definitely trying to do things my way without involving those… cruel things…It's only natural for you to hate it…" He inadvertently squeezing Mukuro's hand and whisper, "I'm so sorry about what you have to face… the pain you must have gone through, sorry I couldn't do anything to ease it …"

The leader of the Kokuyo gang is currently dealing with an emotional rollercoaster; his heart felt like it had skipped a beat. Never before had he feel so warm (?) inside him. Like someone had just breaks a fetter that prevented him from meeting such comforting light he has been looking for. At that very same moment, he has desperately wanted to keep the person in front of him safe. He wanted to protect his dreams. Off course, Mukuro is not sure what that feeling could infer to himself, but he just want like cling to his sides and never let go, like he have truly found a place to be…

"…Am I…" The older boy hesitates, as much as he wanted to know the answer, he didn't dare to ask. He's not sure… why…

"Huh?..." Tsuna finally lift his head, a small pool of tear visible at the side of his eyes. Mukuro stop breathing for a second just by seeing it. Have he just hurt the Vongola?

Just as the Mist Guardian parted his lips, the door flung open. There stood a very unhappy Reborn.

"R-Reborn!"

"…Hey, Acobaleno" The tall boy regard the hitman with his signature grin, not at all cared what conclusion the baby might be having right now. His hand is still on the young heir's throat.

Reborn however, take that demean and raise his gun high, "Leave Tsuna alone this instant." He said flatly, but sounding very dangerous at the same time.

"Kufufu" Mukuro backed away obediently, "Sorry for the intrusion, I just thought your student was a little bore." He smirks and literally left the room.

The little hitman glare at the tall boy with uncertainty as he exit, before proceeding to his pupil's side, standing on an indecent pile of documents and returning his gun to its respective place. "Has he done anything to you?"

The brown hair boy looks at his tutor, still looking obscure. "Eh!... N-no, not at all!" He waves his hands frantically in front of him, gesticulating that he was alright.

"You sure Tsuna, …not even an illusion?"

"Y-yeah, no illusion too," he reassured the Acobaleno. Was Reborn worry about him?

"…"

"Huh? What's the matter," The young boss asked after seeing his preceptor gone quite for a while.

"Haven't I told you hundreds of times not to be so soft?"

"B-but, it's true!" He was actually scared to death during the appalling conversation with Mukuro. The older boy nearly throttles him.

"Next time, be more careful and don't let your guard down." Reborn frown. "…You should never forget… what Rokudo Mukuro had done to you…"

I was planning to make this chapter an angst one. But looks like I fail completely ". Sorry guys! I'm really, really sucked at writing drama!! The dynamic is far from what I want!! A" hopefully I could improve through the chapters…

Yay! This chapter contains Mukuro's view just like promised!

Writing Mukuro so damn, damn hard like hell! I'm totally screwed!! TTATT"
I hope I didn't rush Mukuro part too much… Though it's not so clear yet, he has come closer to realize his feelings towards Tsuna much faster than Hibari, because of… you know "… their personality and stuff…
And plus, Mukuro have had interests in Tsuna long time ago, unlike Hibari.

Mukuro is asking, "Am I one of the..."
Ok! I wouldn't spoil it further, though I guess some of you already know what he wanted to asked XD.

Writing this fanfic, I really grew to like Reborn (and I mean the baby) more and more ! Lol, don't mind me.

And please REVIEW! It really made me happy to hear what you guys think and it gives me motivation to continue…
A thousand thanks to the people who review XD!