A/N: Yeah! And I'm back! Thank you guys for all your wonderful reviews! Love ya all! So here comes the third chapter of Tsuna's awful bad luck! Enjoy! (I sound like some sadist)

Disclaimer: I DONOT own D. Gray-Man or Katekyo Hitman Reborn!

"Lord Sawada, there's someone at the door who says that you are expecting him and claims to be the new Home Tutor."

Nine pairs of eyes were now trained on the young Vongola boss. Tsuna sighed and straightened his black tie.

"Bring him in."

Despite his seemingly calm exterior, Tsuna was sweating bullets internally. As the servant left to bring in the new Tutor, Tsuna got even more uneasy.

For some weird reason—probably the fact he had spent more than a healthy amount of time with Reborn—he was really nervous. He shoved his clammy palms into his pockets.

The rest of his Guardians waited just as quietly. No one spoke a word.

Some were just naturally quiet, while the others were all tensed up. A year fully immersed in the affairs of mafia activities tend to make you unable to look at any person—be it a school teacher or just that old lady selling vegetables on the streets—without thinking that he was an assassin out to get you.

Gokudera's fingers tapped the box of cigarette in his pocket. Ever since Tsuna expressed his dislike of cigarettes, Gokudera had never once smoked in front of him. It seems like Tsuna wasn't the only one on the edge of his seat.

Then, they heard it. Two sets of footsteps.

One set was heavier than the other. Chrome stopped her mixing and stood by Mukuro. Ken and Chikusa weren't slow in standing in front of them either. Gokudera and Yamamoto shifted their bodies ever-so-slightly that they were just in front of Tsuna.

Ryohei started shadow-boxing as a form of relief from the almost tangible tension.

Hibari remained in his shady corner while Lambo—for once miraculously able to read the atmosphere—listened to the approaching footsteps with tears still in his eyes. I-Pin held Lambo's hand as she too waited with bated breath.

"This way, sir." The servant said as he came into view. He had one arm extended towards the kitchen and was bowing slightly to whoever that was behind him. A few more footsteps later, the person was in full view of the occupants of the kitchen.

"Viper-san?" Tsuna blurted out. The rest of his Guardians echoed his surprise. The new Tutor that Reborn chose was the Mist Guardian of the Varia?

"Viper?" the cloaked person questioned in a voice much too gentle to be the Mist Arcobaleno's voice. Then, the new Tutor chuckled, a pleasant sound that hung in the air like a musical note. "I guess the cloak can be a little misguiding."

He—or she, that voice could have easily passed for a female—placed the small suitcase he held on the floor, reached up with a gloved hand and pulled off the hood.

The face that greeted the Vongola Guardians was totally unexpected.

White hair—even purer than Gokudera's silver—framed the pale face of a young boy no older than sixteen. Silvery eyes were set in that face, their gentleness highlighted by the small smile the boy wore on his lips.

The boy's porcelain features gave him a very weak and fragile feel. But these were all marred by the ugly, long red line that ran across the left side of his face.

The way it started from the inverted pentagon beneath his bangs, cutting across his eye—with another shorter horizontal line cutting the vertical one—and reaching all the way down to the chin vaguely resembled lightning.

The boy smiled, revealing the row of pearly white teeth beneath his lips.

"I always get some kind of reaction similar to this," the boy laughed as he gestured to the various incredulous expressions around the room. "Well let's get some introduction across. My name is Allen Walker and I'll be your temporary replacement for Reborn."

The boy—now identified as Allen Walker—bowed in a traditional Japanese greeting.

"Ah," Tsuna—trying to hide his surprise—hurriedly bowed as well to match the boy. "I'm Sawada Tsunayoshi, Tenth Boss of Vongola." Allen nodded; his silver eyes moving on to the rest of the people in the kitchen, prompting silently for an introduction as well.

Tsuna took the cue—if not a little slowly—and introduced the rest of the Family.

"This is Gokudera Hayato, my Storm Guardian and my Right-hand man," Gokudera just glared at Allen; his narrowed green eyes looking straight into those gentle silver orbs. It was easy for the new comer to link the dark burn marks on the kitchen floor with the dynamite sticks the Italian held between his fingers.

Allen just turned to the next person without a second glance at the other white-head. The said white-head clenched his teeth at the obvious disregard Allen Walker showed him, but did not react further.

Tsuna wouldn't want him to get off on the wrong foot with the new Tutor right from the start after all.

"Yamamoto Takeshi, my Rain Guardian," Yamamoto was much more relaxed. He laughed and held out a hand. Allen took it without hesitating, easily matching the cheerful boy's demeanor with a laugh of his own.

"Sasagawa Ryohei, my Sun Guardian," without another word, Ryohei threw a pair of boxing gloves in Allen's direction. It landed in Allen's surprised hands and before Allen could even ask what those gloves were for; Ryohei was already loudly declaring Allen as the new member of his currently-non-existent boxing club.

"SHIBAFU ATAMA! Shut up will you? Can't you sense the atmosphere?" Gokudera half-yelled at the boxing-obsessed idiot. Then he proceeded to drag the silver-head off the table top—which Ryohei somehow managed to get on top of.

The little incident seems to have eased up the atmosphere a little. Tsuna felt his shoulders relax. He hadn't even realized that he was so tight. He smiled at Ryohei's antics, for once he was thankful for the little outburst.

Tsuna stole one glance at the Tutor, curious to what his reaction would be to this daily occurrence.

The above-mentioned Tutor wasn't even looking at the struggling silver-haired duo on the table. He was examining the red boxing gloves in his hands, nodding to himself as he flipped it around.

"Interesting," he muttered and placed the gloves on his small suitcase. "Please continue with the introduction. Reever and Komui are like this back at where I came from, we learn how to ignore these kind of stuff and proceed with more important things."

Allen looked over to the next closest person who wasn't busy trying to stop the two from destroying Chrome and Mukuro's pineapple tarts.

Tsuna blinked. He was tempted to ask who—or what—exactly is Komui and Reever to behave like his Storm and Sun Guardians however, seeing as Allen was already giving the cue for him to continue the introductions; he will leave that question for later.

"That boy crying would be Lambo Bovino, my Lightning Guardian." Allen observed the brawling little cow with a disapproving look.

"Isn't he a little too young to be dragged into this kind of world?" Allen's voice was almost accusing.

"Lambo belonged to the Bovino Famila before he came looking for Reborn. Though he was chosen because it had been a tight situation, we had kept him out of any kind of fights as much as possible." Tsuna hurriedly explained.

Allen's expression didn't change, it was still disapproving and accusing; the little concern he showed towards the little cow boy was also evident in his silver orbs. The white-haired youth sighed—like he had decided that it wasn't his place to reprimand people's decisions—then his expression relaxed into a smile.

"There's no need for you to introduce Mukuro and Chrome, Tsunayoshi-san. Reborn had told me about their special circumstance. So please move on to the rest of your Guardians."

"Ah, Tsuna would be fine, by the way. Well, since you know about Mukuro, then I'll introduce the last of my Guardians." Tsuna suddenly realized that he had been following Allen's unspoken orders like a subordinate.

Somehow, that authority was so natural that no one even thought about questioning it.

Although Allen was polite and gentle all the time, he gave off the same kind of aura as Reborn. Unlike Reborn's intimidating one, however, Allen's was gentler—though both demanded the same kind of respect and obedience.

"That would be Hibari Kyouya, my Cloud Guardian." Tsuna continued with the introductions, it's not good to keep anyone waiting—unless it is for an intended reason.

Hearing his name mentioned, Hibari cocked his head to one side as he held up his tonfa.

"Fight me," this wasn't a request, it was a demand that left no room for bargain. Hibari smirked. Let's see what you're hiding, boy.

Tsuna panicked, Allen wasn't familiar with them at all! If Hibari were to fight Allen, then it would almost be a guarantee that Allen would be spending the rest of his stay here in the emergency room!

"H-Hibari-san! This isn-" Allen stopped Tsuna with a smile, not even showing a sign of distress. No! Tsuna wanted to scream at the Tutor. But the words wouldn't leave his throat.

Something about Allen's smile just told him that Allen would be fine—and it wasn't like he's not curious about what Allen was capable of.

The white-haired boy turned to Hibari.

"Hibari-san, if you wished to fight me, this isn't the time. Let's get all the things out of the way before we find some other time to fight, how about?" Allen smiled at the bloodthirsty ex-prefect.

"It wasn't up for discussion." Was all the warning Allen got before a glinting tonfa was flying at his face.

Jumping backwards saved him from a face-full of metal, but Hibari wasn't done yet. A roundhouse kick closely followed the tonfa.

This time, Allen was ready. He caught the foot in a firm grasp.

Hibari tried to free his foot, but no matter what his did, the gloved fingers did not loosen a single bit.

By now, all the occupants of the kitchen were watching the two; no one said a word as they watched the strongest Guardian trapped in an unbreakable hold.

Slowly, Allen placed his free right hand on a surprised Hibari's face.

Tsuna's brown eyes widened when Allen touched Hibari's face. Panicking even more, Tsuna made to stop Allen before he could lose a limb.

"Now, now," Tsuna froze. This voice doesn't belong to the white-haired boy. Unlike the previous gentle voice of the boy, this one was more melodious and silky.

It gave one the same sensation as poisoned honey.

Allen's appearance seems to be a little different as well. Though it was subtle, it was still there.

The originally straight white hair was now slightly wavy and the color of his skin took on a grayish tint. The gentle smile on his pale lips was now a broad—literally ear to ear—grin; it was so wide that it was simply physically impossible. His originally kind, silver eyes were now cold, hard gold, filled with malicious intent; and they were staring straight into Hibari's unwavering eyes.

Tsuna took a step back from the dark aura that had replaced the gentle and friendly one the boy gave off previously. He didn't need his Intuition to know that something was terribly off.

This was entirely two different people they were facing. Did Allen Walker have a split personality, or was he like Chrome and Mukuro previously…?

"Walker-san?" Tsuna tried tentatively. He has to be cautious with this…other side of Walker.

"You called?" Allen answered, his voice gentle and soft, his silver orbs innocent and his white hair straight again. It was as if he never changed.

As if just realizing what he was doing, the white-haired youth hurriedly let go of the ex-prefect's leg and pulled back his hand.

Hibari didn't move away nor did he say anything. He just stood there, his tonfas by his side and his expression unreadable as his grey eyes stayed fixed on the boy in front of him.

"Um, I would like to unpack, so, uh, could you show me, um, where I would be sleeping?" Allen's words did not come out as smoothly, his previous confidence the authority he radiated seems to have vanished into thin air. He wouldn't look anyone in the eye anymore and happened to find sudden interest in the tiling on the floor.

A servant appeared the moment the words left Allen's lips, like he had been listening outside the whole time.

Tsuna frowned at the unfamiliar face. He might not know all the servants here but he was sure that the blonde's plait and the two dots on his forehead would definitely leave an impression if he had seen him anywhere before.

"Hold on," Mukuro broke the awkward silence just before the boy turned to leave with the servant.

The illusionist swiftly closed the distance between him and the short boy, his trident loosely held in his hand. He bent forward and held his lips just barely and inch from Allen's ear.

Tsuna watched curiously as Mukuro's lips moved; the words too soft for him to hear. Whatever Mukuro said made Allen jump back in surprise—though he regained his composure fast enough to make one doubt if he really did actually move.

"That would be for me to know and for you to let your imagination run wild." Allen smiled at the purple-haired teen before walking away.

"Kufufufu," Mukuro did his signature laugh. "How intriguing."

Hibari—finally moving from the position he froze in—just 'che'd and left the kitchen as well.

Tsuna—confused by what had just transpired between Allen Walker and his Mist Guardian—made to ask the obvious question.

Mukuro just placed a finger on his smirking lips, his heterochromatic eyes seems to be smiling at an untold joke.

"That would be for me to keep a secret and for you—my dear Sawada Tsunayoshi—to make your own assumptions."

With that, Rokudo Mukuro was gone in a cloud of mist.

There you go! Hope you enjoyed it!

Translations:

Shibafu atama: turf-top

Please review! (They give me the motivation to write a new chapter, which I desperately need)

Arigato!