Sorry for being so fickle! I thought I'd be updating TPR today, but had this one done up earlier instead (even though I said I'll look at TPR first)! I'm having troubles with a chapter on that one, but since this was giving me more ideas/inspiration lately, I just let it take its course and this happened. lol

Thank you very much for all those who added and reviewed!

Also, addressing AkabaneKazama's question: "Will u write the normal Tsuna daily life too?" If by normal, you mean the non-ninja Tsuna then yes, but not all the time. Based on my initial plans, it's not really part of the central story. Kind of like a few scenes here and there at the end of some chapters for thrills. So its timeline might be different from the main story. lol

Title: Body Switch

When Tsuna was eight, he met his father. This world's father.

At that time, he only had one impression: Average. He wasn't exceptional like his old man in the past... but then again, he also can't say for certain. After all, Sawada Iemitsu still do work for the Vongola. Yes, that very same Vongola. Tsuna found out. As to what kind of work it was, Tsuna still wasn't sure. But if he was to guess, perhaps their leader. After all, his father was the leader in Vongola clan back in his world, thus the reason for making Tsuna the heir in the near future. Thus, the brunette kid can't completely rule out the possibility. Hence, despite appearing idiotic, this papa of his might still have some hidden skills of his own.

"Tsuna!" Just when Tsuna was still lost in his own thoughts, his father tackled him in a hug before lifting him up. "Hahaha! Look how you've grown, Tsuna! Papa haven't seen you since you were five. Did you miss papa?"

Tsuna tried his damnest not to flail and wail like a kid, but this was too embarrassing! He was not used to this kind of Iemitsu. He glared at his father. "No," and flatly replied. Tsuna missed his own father, yes. But this version of Iemitsu was still a stranger to him, so how could he miss this father?

If Iemitsu felt hurt by what his son said, he did not show. Instead, he only tightened his hug on Tsuna. "Then, I'll make sure you'll miss me the next time. Hahaha!"

Iemitsu only let go when Nana called them for lunch, much to Tsuna's chagrin.

And ever since then, he would try his best to avoid his old man at all cost.

Perhaps he had spoken too soon.

=.=.=

And spoken too soon, he really did.

"You okay, Tsuna?" both Yamamoto Takeshi and Sawada Tsunayoshi were walking together to Namimori Elementary. Although the brunette was silent most of the time, it was the first time the raven-haired boy saw him so dispirited. He never fully understood the brunette, true, even after being friends with him for nearly a year. Still, Yamamoto Takeshi did not mind. Instead, seeing Tsuna disturbed still made him feel a bit concerned.

Tsuna grunted in reply.

There was a lot on his mind right now. For one, after working overnights cracking codes here and there, he finally and completely sniffed Vongola's main base in Italy, only to find out they were part of the mafia. Mafia! Not ninja! What the hell do mafias even do?! What more, his dad wasn't the leader, but some external advisor. Instead, his uncle was the one considered the Nono. How was he to stomach this? He is not the heir! Is he even blood-related to this world's Vongola? What was he to do with all his trainings?

Tsuna had thought of researching more of it early this morning, but secondly, his father was being too nosy. Going to his room so early in the morning to invite him out for fishing! After finding out the full truth, he was still bitterly disappointed with his father. And it only made him dislike him more for not leaving him to research in peace. It was giving him a headache. And he still had that problem of hunting down the rest of his friends! One year passed and no trace of them yet... none other than Yamamoto Takeshi.

Not to mention a fourth problem of finding ways to return home.

"Hahaha! Just cheer up, Tsuna!" the taller kid slung an arm around his friend. "It's bound to turn out great later on!"

The brunette was skeptical on those words. He had been to numerous assassination attempts and near-death situations ever since he was a baby, and he learned the hard way that things will not "turn for the better" lest he do things himself and work hard. If he want good results, he has to work.

Tsuna tried organising his thoughts. Looking at Takeshi's happy smile, it honestly made him feel a bit jealous. The Takeshi of his world was also the same, a happy fellow, except that version of Takeshi knew his circumstances and even offered to share the burden off of him. What was he suppose to expect on this version of Takeshi? He can't possibly just tell him 'Hey, I came from another world, is an heir-apparent to some ninja clan so I got skillz. But now, I don't know how to go back or even what to do with all these things.'

Sometimes, he blamed his upbringing for maturing early. Training and planning was drilled on him since young. Being an heir to a powerful ninja clan was hard.

Tsuna sighed.

=.=.=

Today was the start of a new school term in Namimori.

So even if it was nearly 8 in the morning, both Tsuna and Yamamoto had encountered a lot of their schoolmates still heading to school. Being used to vacation, no doubt a lot had almost slept in on the first day of class. By the time the two were near the school gates, a lot of the students had gathered by the entrance up ahead.

"Is there some event happening today?"

Tsuna shrugged. Maybe a lot more students were late than they expected-? Before they could ask a nearby senpai, however, WHIP! BAM! Fighting broke out at the exact same place the crowd had gathered. Did the teachers suddenly became too brutal on latecomers?

Tsuna and Takeshi looked at each other, before breaking into a jog.

Upon closer inspection, however, the sight that greeted them wasn't a teacher disciplining the students... but another lad with raven hair and slanted eyes, tonfas on both hands.

"... Kyoya?!"

Indeed, maybe things will turn out for the better soon... or not.

Meanwhile, in another world far, far away...

"ITtteeEeeeEee! Let go, let go, let go, let go!"

A lad by the name of Sawada Tsunayoshi was flailing and wailing like a kid. He was tackled on the ground with a death grip, by a man who suspiciously looked like his old man. "I give, I give, let go," he surrendered. The man got up before pulling his own son up.

"You've gotten weak, Tsuna! You used to give papa a hard time. Hahaha!"

"Che! Old man, that guy isn't even Tsuna," another boy of about Tsuna's age spat somewhere far. He was the lad who first noticed something was wrong on this Tsuna, the first to recognise he was no longer the friend they all knew. And since then, the lad had been antagonistic towards the brunette.

Tsuna rubbed his sore muscles, attempting to ignore the glares of a certain silverette.

Today was another weekly training with his "papa." Tsuna had been in this world for almost half a year, but not once had he scored a victory against the older Sawada, yet. It always ended up with him on the ground, battered and bruised. Seriously, what kind of life did the other him lead in this world?! So scary...

The man, Iemitsu, sighed. "Well, you may not be our Tsuna, but you are still my son... err, in another dimension, maybe. Hahaha!" he scratched his head. "You still have every right to be here, Tsuna. And to protect yourself, you have to grow stronger," he patted the lad in the head, slightly apologetic but still overflowing with care for the lad.

Even though it had been months, it still surprised Tsuna knowing his "father" was capable of such love. For all he remembered, he was negligent and annoying. This world's Tsuna was lucky.

The first time Iemitsu acknowledged this Tsuna was not his own, rather than sending him out or antagonising him, the first thing he did was relay instructions after instructions on how to better protect the boy. He had the face of a Sawada Tsunayoshi, but not the talent of one. Without protection, and as a newbie, it will surely get him killed sooner or later.

There were times he appeared distant, yes, but not to a point it made Tsuna feel left out. He was also slowly teaching him from time to time about the people under the clan, and the things they do, so as not to make him look too different. To this day, other than their closest relations, not one had realised the Tsuna they once knew had been switched.

"En, I'll... I'll do my best," was the only thing the brunette could say. Realising his weaknesses, he was a bit embarrassed. A spark of resolve lit within him.

"Hayato, please protect Tsuna. Reborn," Iemitsu looked at another man and nodded. Then, the two left the training area.

...

"Sugoi, Tsuna! You finally lit your flames a while ago! Hahaha!" a lad, Takeshi he was called, slung an arm around the brunette. Tsuna's brows knitted. His body was still aching and tired, but he tried not to complain.

"I did not expect you to be brutal, sword freak," the silverette, Gokudera, smirked. "The real Tsuna-sama had already lit his flames a long time ago, aren't you just insulting this imitation-"

"Gokudera."

"..."

"Che! Suit yourself, but I will never accept this imitation," Gokudera Hayato glared.

"Where are you going, Gokudera? Didn't Iemitsu tell you to stay put?"

The silverette didn't reply, before he too finally left the field.

"..."

"Err... you don't have to worry about me, Yamamoto-kun! But... umm, thank you!" Sawada Tsunayoshi smiled.

"Tsuna..." Yamamoto Takeshi sighed. "Just so you know, I wasn't insulting you, you know..."

"... I know."

Yamamoto Takeshi smiled. He wanted to say something more, but stopped in the end.

The young swordsman really missed competing with his best friend. In the past, it used to be Tsuna who would teach him things, Tsuna who topped the two of them. And one of the few people who could give Sawada Iemitsu a hard time in battle, the so-called once-in-a-lifetime prodigy in the ninja clan world.

But now, this brunette could barely fight, and barely remembered the things being taught to him. To that, it was a bit weird and awkward. He was already so used to having a friend who could handle himself too well, but now... Takeshi only found himself becoming apologetic more often realising they had him left out on combat or homework. He forgot he was no longer their old Tsuna.

True, the three of them have never been the same ever since their Tsuna disappeared and this brunette came instead. Still, one Yamamoto Takeshi truly believed it will be better soon. While Takeshi understood Gokudera's sentiments, unlike the silverette, he was not one to completely ignore and antagonise this new brunette. And if one only looked closely, this Tsuna had the semblance of the very same Tsuna he once knew. He was kind, accepting and never once complained. Not to mention... he had the instincts of a true shinobi.

His reactions, his intuitions... and that raging flame a while ago were proof.

This was also the reason why Yamamoto Takeshi started admiring the new Sawada Tsunayoshi. Yes, their old Tsuna had already lit his flames a long time ago. But this was the first time Yamamoto Takeshi had seen such pure resolve in his "best friend's" flames, purer and brighter than before. And so, like in the past, the young swordsman was still more than willing to help this version of Sawada Tsunayoshi.

Takeshi was hopeful Gokudera would realise it soon too...

"Hahaha! Let's go, Tsuna, before Reborn grills us. You still haven't finished the homework from yesterday!"

The brunette complained a million times in his head. But he was too tired to even say a thing. He only sighed, before letting Yamamoto Takeshi drag him to who knows where.

Thank you very much for reading! Yay, please tell me your thoughts! :D Thank you!