A/N: Please don't kill me for starting another fic! I'll really try to update the others. I've been receiving PMs and reviews, while I haven't replied to some I really appreciate them. Don't worry I haven't abandoned my other fics! I'm in the process of writing the other chapters but I'm kinda having a writer's block and me life isn't really all rainbows and unicorns at the moment.

SETTING: Semi-AU, 4YL. They're all in Italy staying at Vongola's Main Headquarters. They're also attending University.

Warning: OOC-ness, Grammar.

Disclaimer: I don't own KHR.

Tsuna turned on the lights as he entered his room. It was bigger than the rooms of his guardians because it doubles as his study so he can do his homework in his room and he can also talk to his guardians privately there. He gave out a huge sigh of relief as he tossed his blazer to a nearby chair before slumping oh his bed. He then proceeded to loosen his tie hastily.

"Glad that's over." He said as his mind drifted to something else. Now that the ceremony is over and he's officially the boss, he should focus on his studies next. If he remembered correctly, his professor mentioned something about internship. He needed to apply to an establishment until the end of the month, get accepted and apply everything that he learned.

Tsuna got up quickly as he realized his problem when he saw it's less than a week before the end of the month. He can't possibly abuse his power as Decimo just to find a company to accept him. That would make him look spoiled, and he just inherited the title a few hours ago! Tsuna cursed his luck, he's sure that the others already applied. While he's confident that he'll manage just fine because he's changed, he's not sure that he'll be able to find a good establishment in such a short amount of time.

'Goodbye good grades, it was nice knowing you.' Tsuna despaired. If he weren't so focused on the ceremony then this wouldn't have happened.

"You still have a long way to go, Dame-Tsuna. And the Inheritance Ceremony just ended." Reborn pointed his leon gun at the brunet. "Act properly."

Tsuna raised his hand in defeat as he fixed his posture and sat properly on the bed. "Okay, Okay. I'm just thinking." He said as he watched his tutor take a seat on the leather chair across him. "Ne, Reborn. Can I take a break?" He asked as he looked at his tutor pleadingly. He was answered by a warning shot a few inches from his head. "HIIEEE! I get it. Mou."

Another shot. "I thought I told you to stop acting useless and to lose that girly scream of yours." Reborn smirked evilly at him. "Would you like me to teach you again?" The way the hitman's eyes glinted dangerously almost made Tsuna slink away.

"No thanks. I'm good." Tsuna replied, thanking the heavens that he didn't stutter.

After all these years, one would think that Tsuna changed. Well he did, but some things will never change. He may have started getting higher grades and gained a lot of respect from his peers in Middle School, but he's still Dame-Tsuna. No one calls him his nickname anymore, except for Reborn though. His middle school title may be no more but he's still clumsy at times. Old habits die hard after all.

After a few minutes of silence, Tsuna thought of something. Wasn't it Reborn's job to make him the Vongola Decimo or well, Neo Vongola Primo? Now that he's finally the official Boss of the Famiglia doesn't that mean that Reborn's job is now finished? Tsuna internally cackled in glee at this. He's finally free from the devil incarnate! No more Spartan training! Well, good luck to the next poor sap that'll be put under Reborn's tutelage.

Tsuna's inner celebration was painfully interrupted when Reborn hit him with the leon hammer.

"Ouch, Reborn! What was that for?" Tsuna whined as he rubbed the sore spot on his head. Reborn loomed over him as he glared at his student who shuddered in fear. "Don't think that you'll get rid of me that easily, Dame-Tsuna." Reborn then smirked. " I still have yet to introduce you to the greatest invention ever: paperwork." And suddenly, Tsuna felt a huge urge to just escape. The word brought shivers down his spine. It was not the good kind.

Fortunately for him, a knock resounded inside his room. Tsuna thanked the intrusion. He saw Reborn turn leon back to normal and leaned back on the chair. The newly appointed boss then asked for the newcomer to come in.

Gokudera opened the door, still dressed in his ceremonial tux, "Juudaime, I'm sorry to disturb you but Nono is looking for you."

Tsuna then proceeded to fix his tie. "Do you know why?" He then went to get his blazer, which Reborn handed to him.

Gokudera looked apologetic. "I'm sorry Juudaime but there were no further instructions. It seemed like it's only for you."

"It's okay Hayato, I'll just go ask him." Tsuna smiled at his now official righthand man, who had a light blush on his cheeks.

"Understood, Juudaime. Well then, I still have to help clean the hall." Gokudera bowed before excusing himself.

"Okay, see you later and don't cause any damage!" Tsuna called out to the bomber who replied an enthusiastic "Yes, Juudaime!" Somehow, Tsuna doubted that.

Nevertheless, Tsuna smiled softly as he made his way towards Nono's office with Reborn trailing behind him. Some things really haven't changed. Well except for the fact that he and his guardians are on a first name basis. Except for Hibari who calls them by their full names or his usual classifications of them. Then there's Mukuro that calls them by their full names too if he's not teasing them.

Tsuna remembered the first time it happened. They all just moved into the Japanese HQ when they graduated from middle school for more training, when Yamamoto suggested it. Of course it caused a great ruckus but everyone, mostly, agreed in the end. The Decimo almost laughed when he remembered Gokudera's face when he called him by his given name.

The storm guardian looked torn between feeling happy and committing hara-kiri because he's unworthy. It was amusing especially when everyone teased Gokudera. He felt that his family's bond grew stronger because of that. Until now, whenever he calls Gokudera by his given name, he's still amused to see him look like he won an award or something. Good thing his reaction is much more tamed compared before. Sadly, this detail didn't escape the other guardians' notice as they teased the bomber; much to the latter's frustration.

As for Mukuro and Hibari, they both seem to abhor the idea of even uttering each other's name. Both seemed to have no qualms in calling the others by their names, but only insults come out of their mouths whenever the cloud and male mist see each other.

The Decimo snapped out of his reverie when he reached the door to Nono's office. He knocked three times and waited for an answer before coming inside. Nono smiled at the both of them before ushering for them to sit. The older boss then looked at Tsuna. "Tsunayoshi-kun, I assume that you've heard of your first mission as a new boss before I fully retire."

Tsuna looked confused. "What mission?"

Nono looked a Reborn. "I was about to tell him." The hitman shrugged then looked at Tsuna. "Basically, we want you to infiltrate a branch hotel of Vongola."

Tsuna's mind stilled. Did he just hear what he thinks he heard? Tsuna looked back and forth at Nono and Reborn. They both looked pretty serious. Tsuna resigned to his fate.

"Well, looks like I have no choice, do I?" Tsuna smiled weakly as his shoulders slumped.

Nono smiled empathically. "I'm sorry about this Tsunayoshi-kun but it's tradition. A Vongola boss must undergo his first non-life-threatening mission before taking up the mantle."

"Isn't it supposed to be life-threatening to properly test the boss? N-Not that I don't like a safe mission!" Tsuna sweat dropped as he looked at Reborn's evil smirk.

Timoteo simply chuckled, getting Tsuna's point. "Well it's more like an initiation rather than a mission. A rite of passage of some sort." He explained as Tsuna nodded in understanding.

Reborn cleared his throat. "Anyway, like I said earlier, we want you to infiltrate a branch hotel."

Nono nodded, "You'll be going through the interview process under a different name and of course a disguise."

"Dame-Tsuna, remember to ace the interview. We can't help you so we can only give you tips. If you fail in any way…" The threat didn't need to be said, it was as clear as day.

"Tsunayoshi-kun, this assignment of yours is a way for you to know how our business works since you'll be taking over soon. We also want you to get to know the employees as well as the guests." Tsuna nodded.

"Here's your ticket to Japan, some money, and other information regarding your mission." Nono handed Tsuna a brown envelope. "Better start packing, you leave in 3 hours. Good luck, Tsunayoshi-kun."

'That fast?!" Tsuna thought as he took the envelope and headed for the door. He stopped in his tracks. "Wait. What about school? My internship?"

"That's already taken care of. Just read the other instructions Nono gave you. Also, don't worry about your guardians. I'll handle them."

Too bad Tsuna didn't see Reborn and Nono exchange evil smirks as he went out of the room, or else he'd immediately drop the mission. Goosebumps resonated through his body though.

A/N: So how was it? Yes, I know the writing's awkward. This chapter is also very short. I don't think I'm used to writing anymore. I'm sorry. This fic will be short, I think? Anyway please review!

Anyway, Tsuna's real adventure will start next chapter, wish him luck!