Disclaimer (for the whole series of this fanfiction because it's tiresome to repeat it over and over again): I don't own Katekyo Hitman Reborn, it belongs to Akira Amano.

Past Excursion

Prologue

12/03/13

Blue skies, cool breeze, peaceful surroundings, and soft lush grass on his back. Tsuna sighed in content and closed his eyes, laying down with his arms propped to the back of his head in a relaxing pose.

"Now this is what I call a vacation," he mumbled to himself.

A gust went by to ruffle the leaves on the trees. Humming happily to himself, he can't help but smile at the refreshing setting. This is by far the best vacation he'd ever had, unlike all those times Reborn had organized. Sigh.

For the past three years, he'd been to Mafia Land and to many different countries intended for his breaks for countless of times. The first half of those times, he was still naive and hopeful enough to have wished for a quiet and relaxing rest without the worries that comes along with being the boss of Vongola. Oh, how ignorant he'd been back then!

So, as always and as he should have expected, Reborn somehow had created chaos whenever and wherever he goes every single time even when he's on vacation. It's not anymore a question of whether Reborn would interfere or not. It's more of when would Reborn intervene. He had to always be on guard even on vacation!

No.

Scratch that.

He always had to be on guard ESPECIALLY on vacation because, somehow, Reborn found more ways to bring madness to his life on those occasions. But at the moment, none of that madness is around nor are Reborn and his family for that matter, so he could relax in peace for once, "I should thank Hayato, Lambo and Giannini once I got back."

The so called "vacation" Tsuna was having at the moment hadn't really been planned nor was it caused by a spur-of-the-moment agenda. Oh, no. It was purely accidental so he can't be blamed. Really. It was all said three individuals' fault. But how did it happen, you may ask? Well, as stated earlier, the aforementioned three were the cause of this unexpected circumstance he's in.

You see, despite Giannini having improved greatly through the years, he still had those clumsy moments that whenever he tried to fix or improve something, it still turns awry. Like that time when Giannini got his hands on Hibari's tonfas seven years ago. (I still had no idea how he managed to procure those from Hibari. Hibari practically sleeps with them!)He had that sudden inspiration to improve said tonfas. He had apparently planned to install bombs that would shoot out of its compartments so Hibari could disseminate enemies even from afar. (Oh, the horror!) Once the tonfas had been given back, Hibari tried to open the compartments to bite the herbivore to death but instead of simply unlocking the chains, it blew up.

Yes, it blew up.

It blew up in Hibari's already seething face. Needless to say, Giannini had to hide himself within a room with two feet thick walls of the highest grade reinforced metals… underground… and at Antarctica… for a month. You would have thought he learned his lesson after that, but Giannini had a thick skull. A really… REALLY thick skull.

And now, Giannini's recent project had been to improve the Ten-Year Bazooka so the time limit would extend for ten minutes and would supposedly replace the user with their 20-year-old-self rather than their usual 10-year-old-self. It was all still fine and good back then - so long as no one gets shot by the bazooka - up until it had the full approval from Shoichi or Spanner for its authentic efficiency.

So he went to have the regular monthly check for Giannini's progress with the newest Vongola technology at the inventor's laboratory, which was located half-a-mile away from the main HQ but was still within the Vongola grounds. The said laboratory was situated far away for safety precautions but, apparently, with Vongola, distance isn't enough to stop pandemonium from happening. Groan.

So when Lambo came charging in with Gokudera in tow with a couple of his trademarked dynamites in hand, he should have known. It all happened so fast from then. There were explosions, shouting and cursing like usual; but the next thing he knew, he was already engulfed by a familiar pink smoke. A familiar array of multi-coloured streams and a bright light came next; so when his eyes opened, he was greeted by the sight of a meadow atop a small hill looking over a small town of old time Italy.

Then again… Even if it hadn't really been my fault Reborn would still find ways to blame it all to me later on…

.

.

.

Meh, I'll worry about that later.

A/N: Yeah, and here was the prologue of that time travel fic that I said I wanted to try writing. I would have made it longer but I thought it would be better to cut it here. Feel free to proceed to the next chapter since this is a double a update right off the bat.

Update (07/21/14): Edited a few inconsistencies from the latest chapters that I hadn't noticed before, as well as grammatical errors. And I also fragmented the long paragraphs into smaller ones as suggested by a reviewer (I'm sorry if I couldn't remember your name, I promise to look for you in the reviews next time) for better reading.