Summary : While he was returning home after a day of classes all that was normal for the Vongola Decimo, or : disturbed by various explosions, the unexpected arrival of a certain pineapple illusionist, the dodge of a disciplinary committee leader, and many other problems, Tsunayoshi loses consciousness and wakes up in an unknown place, facing a strangely dressed nurse, and who says even more bizarre things.

Wait, how did he get transported to a parallel universe again ? Alter ? Hero ? Are all these people sane, by the Primo's underpants ?

In short, a new adventure for Tsuna and his friends, where he will learn to become a hero, and incidentally save the world from destruction... Oh ! Had he mentioned that the Earth was communicating with him, and that he had fallen in love with a notorious Villain ?

Important : I changed the ages of the characters, here Shigaraki is 17, Tsuna is 15 but 16 in like two months. I have no idea why I ship them, but it came naturally soooo here you go!

Parrings : Tsuna/Shigaraki, 8059, 6918, Eraser Head/President Mic. Apart from the main parring, the others will be in the background, and I'm not even sure they will appear at some point, but in case I put them to you.

Hello to you!

I come back after way too long without posting anything, with a new fic, and I have a plot this time. So, I should be able to finish it...

The pace of publication should be one chapter per month, but it may come out more often. I have another one up close, and I'll try to keep some margin every time to avoid publishing holes.

Reviews are very appreciated, this is what makes me want to continue writing and prevents me from throwing my pc when I get to nothing XD

Don't pay too much attention to the summary, I'm terrible at that ;w;

Here it is, good reading, if you have any questions do not hesitate :3


[Translation] The hero with shells

Chapter 1:

The beginning of the end

The first thing that Tsunayoshi noticed when he came back to himself, was that he was not in his own bed, nor in a coffin. Oh, he was indeed in a bed, but clearly not in his room, if the smell of disinfectant that seemed to have permeated the entire place was a hint.

Trying to remain as still as possible, the teen with gravityless hair recapitulated.

Alright, he was in a bed, probably an infirmary or a hospital because of the smell. A quick check-up of his level of pain and his body state in general told him that he was unharmed, or at least, not any worse than usual.

It was a good start.

Now begun the tricky part. His last memory was at the end of his classes, when Gokudera and Yamamoto left him on his doorstep. From there, it was completely black, until he got his conscious back.

Mentally sighing at this newest not-normal-at-all event that life threw at him and checking on his Hyper Intuition for any sign of danger, he slowly opened his eyes.

White. What a surprise.

Turning his head to the side and wincing at the stiffness he had just awakened at this movement, he briefly detailed the room, which was indeed, an infirmary.

His caramel eyes quickly fell on the only other person present, an old lady who wore a white blouse and… A pink and purple helmet? Tsunayoshi frowned, confused, but did not speak his mind, knowing that calling out a perfect stranger on her fashion style was not the best idea in the world.

He started to rise up, and, not seeing any protestations coming from the master of the place, sat, ignoring the slight dizziness that his change of position caused.

The old lady looked at him with a smile, seeming to wait until he had recovered enough to say something. Tsuna slightly blushed, and blinked, uncertain.

"Hum… Hello...?"

This seemed to be the good response to that extended silence, because the smile of the lady grew wider. She nodded, taking a piece of paper and a pen on her desk, before coming back to him.

"Hello little one. I am Recovery Girl, could you give me your name ?"

'Is that even a name ?'

His thoughts must have appeared on his face, since the so-called Recovery Girl continued, amused.

"My name is Chiyo Shuzenji, but my hero alias is Recovery Girl."

Hero? What was she talking about?

More and more confused, the Vongola only nodded, not sure that he understood the whatever joke she was playing on him. His intuition had not shown up, so he had nothing to fear, but it was still weird.

"Ah... I am Tsunayoshi Sawada madam. Uh, glad to meet you…?"

His greeting had ended up sounded like a question... He began to fiddle with the white sheets on his lap, unsure of what was going on.

Recovery Girl took a few notes before speaking again, beating her pen against the board that served as her writing support.

"Evening young man. Do you feel any pain? Nausea, perhaps ?"

Ah, this was a more familiar field. He never had any idea how to chat with strangers, and most of the time, they ended up looking at each other in the white of their eyes, or rather, Tsuna was watching his shoes as if it were the most interesting thing he had ever seen, and this for long minutes laden with a blazing silence.

The Sawada shook his head twice, not counting the aches as pains worth mentioning.

"No, just dizziness, but I'm fine, thank you ma'am."

Again, she took note of his answer, and pointed from the tip of her pen to the bedside table to his right, where his pills and the rest of his belongings had been deposited. An outpouring of panic caught him when he did not see his ring among the pile of objects, but quickly calmed down when he saw that it was well slipped around his middle finger.

A sigh of relief escaped him, and the almost painful tension of his shoulders dissipated a little. If he had his weapons and pills, he could fight without problems, or run away if his opponent were too dangerous.

A shiver of horror ran through the Vongola's spine at the thought of what his tutor could do to him if he ever found out he had fled a fight. And he would learn about it, he was certain. Reborn always knew everything...

A throat scraping caused him to jump abruptly, and he refocused on Madame Shuzenji, looking contrite.

"Excuse me ma'am, I wasn't listening..."

"It is nothing young Sawada, you must be a little lost. But maybe you can tell me more about how you got here ?"

Tsunayoshi tilted his head to the side, not sure he understood correctly.

"Uh, ma'am? Where is this 'here' ?"

"Oh, you don't know ? We are at the Yuei infirmary. You were found unconscious in the middle of a hallway by a teacher. I allowed myself to look at your student ID, but your Quirk wasn't marked on it, could you tell me what it is ?"

Raising a hand to his head, Tsuna passed it through his hair in a nervous gesture, increasingly afraid to understand what had happened to him.

The old woman had lost her amused air but not her benevolence, for more professionalism he assumed, and seemed to expect a very specific answer.

Feeling the lump in his stomach tighten, he swallowed, and answered in a trembling voice. Admittedly, he had managed to get out of the worst situations pretty much alive, but that did not mean he liked the pranks that Destiny Itself seemed to love to throw at him. Wait no, he died in one of them, didn't he ?

"Y-Yuei…? Quirk…?"

The nurse's compassion now seemed strange to him, and what she said afterwards reinforced the poor boys' confusion and panic.

"There's no reason to be embarrassed if you do not have one, little one, it is perfectly normal !"

The little brown head blinked and repressed his desire to just burst into tears and roll into a ball in a corner, while waiting for his problems to be magically resolved. Hey, it would be nice if everything could go that easily.

Usually, when this kind of things happened, he was at least surrounded by one of his friends, if not all of them, and they managed to get out of the new quagmire in which they had set foot by working together.

But here... He was all alone, in an infirmary where he was only told things that did not make any sense to him, and his old habits taken over all these years of constant harassment resurfaced.

He suspected that he must look more like a beaten puppy than a young high school student. With his shoulders pulled up to his ears and his eyes too wet with tears that he refused to let flow by biting his lower lip. But there was nothing he could do about it !

Tightening his hands on the white sheets and putting all the little determination he could muster in this situation. Tsunayoshi spoke again still trembling.

"H-hum, m-madam? W-What are you talking about since earlier...? W-What is an, uh, Q-Quirk ?"

Recovery Girl looked at him for a good minute as if he were an alien who just to told her that her father was in fact her son of another dimension, before finally taking pity on him, seeing that he was just as confused as she was, and more specially on the verge of a break down.

"You... You do not know what a Quirk is ? Boy, I don't know if someone has, no pun intended, altered your memory, or if you have lived on a desert island all your life for not knowing that, but a Quirk is a kind of superpower."

An insinuating voice (which sounded a little too much to his liking like the one taken by his Intuition to warn him of a danger) pointed out that the answer was very simple in comparison to the assumptions of the nurse. A parallel world.

Tsunayoshi felt his mouth open and close several times without any sound coming out, as he tried to swallow the enormity of the situation that had just come out of the mouth of this Recovery Girl.

Superpowers ? Oh, really ?

Even for him whom is used to seeing the laws of physics as he knew them being overtaken regularly, whether by special time travel, or just his Dying Will Flames, hearing about superpowers was incongruous.

Becoming the heir to the world's broadest mafia family overnight and having to save the world repeatedly regardless of time or period is one thing, but if you start talking to him about invisible man or spider-man, he will stutter. Something he was already doing but that is beside the point.

The fact that his Hyper Intuition did not respond also troubled him. Was she telling the truth then ? After a few minutes, he managed to gather his thoughts enough to form a coherent answer, the Sawada's voice lowered, sounding very hesitant.

"Super... Superpowers ? L-Like in comics, o-or manga…?"

The nurse seemed, to his great relief, to have recovered from her initial shock of having to explain to a teenager what common knowledge of her folk was. She was amused again by his questions, though still worried about his mental health. Now he no longer seemed to be about to burst into tears, instead he was taken aback by the revelation.

"That right little one, I can hardly demonstrate mine since it's a care Quirk, but I'm sure we can ask one of the professors present to show you theirs, if you still find it hard to believe."

She paused, and pulled a device out of her pocket, a phone, before resuming.

"If you do not mind, I am going to send a note to the principal and the teacher who found you to tell them you are awake ? It will be easier to clear up this situation then."

Blinking several times, he only nodded, dropping a small "please", and beginning to hate the constant feeling of confusion he had felt since he had woken up in this infirmary. Shuzenji's gentle smile only briefly eased his anxieties as she leaned over the device and placed her report on her desk.

Again, his Intuition did not react as it did when someone was lying to him, and his meagre abilities of social understanding still did not understand it.

Tsunayoshi waited to see these other people with these supposed superpowers to come and convince him. Even though, the part of him accustomed to the supernatural and the unexpected had already accepted it. He was afraid to seem rude to doubt the words of the nice lady like that, but she did not seem to hold rigor of his skepticism, which was understandable in view of the situation.

They did not have to wait very long before three more people arrived in the infirmary. Well, people... Rather two men and a mixture between a bear, a dog and a mouse. Who was wearing a suit, and who seemed as intelligent as a man ? Trying not to stare too much, he shifted his attention to the others, repressing his questions. He had avoided a breakdown a few minutes ago, it was not about start again now. Denial was his best ally.

One was quite tall, had long black hair, and seemed not to have slept in weeks. A slight fold in his brow appeared on forehead of the Sawada, worried about the health of the man during this observation, but his Intuition shouted to him to be on his guard in front of him. He was stronger than he seemed visibly, and fortunately for the poor Sky, not an instant threat.

The second was the most normal looking of the three and apart from his size and serious air, he was not very striking. But that was what made a man dangerous, normality. And his Intuition proved him right since it whispered to him to pay attention to his words. Maybe he was very susceptible ? Or attached to good manners ?

Realizing that staring at the perfect strangers like that was not the politest thing, Tsunayoshi tensed and shifted his caramel gaze to his hands still tightly holding the white sheets.

Recovery Girl did not let the silence to set in for very long, and while the arrivals took their seats (looking as uncomfortable as possible), she made the introductions.

"Sit down, sit down ! My boy, this is Nezu, the Director of Yuei, the school where we are now, Aizawa Shouta, the teacher who found you unconscious, and finally Detective Tsukauchi Naomasa. And you all already know the name of young Sawada."

Tsunayoshi respectfully nodded to each of them, voluntarily putting aside the fact that the so-called Nezu was Director when he was pretty much an animal. After all, he had had a baby number 1 Hitman as a tutor for several years, who had now regained his adult form, and if these stories of superpowers-Quirks-thing turned out to be true, well that would explain it.

Except for Professor Aizawa, they all displayed an engaging smile, and Tsuna found himself answering them the same timid way, holding back from bombarding them with questions in the hope of understanding a little better what was going on.

A good quarter of an hour of more or less confused explanations of the situation was followed, the nurse reporting the events as faithfully as possible.

They all seemed surprised to see that he did not know what the hell a Quirk was, and the number of suspicious glances that Tsunayoshi received from Professor Aizawa was growing.

The little brunette was getting as small as possible, trying to digest what was happening to him. The panicked part of his brain was already drawing the most far-fetched conclusions and the lack of information did not help.

'What year was he in ? Was it a universe parallel to his ? Or another completely different one ? Were his friends okay ? Why was he here ?'

"Sawada-kun?"

Detective Naomasa's voice brought him out of his thoughts in an inglorious start.

"Y-Yes Tsukauchi-san ?"

"Could you give me your name, your date of birth and your school if you like ?" said the oldest quietly, not seeming to be offended by the fact that he had not listened to them for quite some time now.

Tsunayoshi blinked, wondering what the information could be used for, and answered honestly, his Intuition reminding him that it was a bad idea to lie openly to this man.

"Uh... My name is Tsunayoshi Sawada, I was born on October 14th in Namimori, where I have always studied..."

Everyone in the room turned to the detective, seeming to expect something from him. When he nodded, looking a little surprised, they exchanged incredulous looks until Director Nezu spoke.

"See Sawada-kun, the reason you are being asked this question, is because there is no Tsunayoshi Sawada who has lived in Namimori, or in Japan in general, in the past 70 years..."

And the Vongola only blinked several times, refusing to understand what the little white animal had just told him. Of course, this did not last long, and his confusion quickly became vocal.

"W-What ?! B-But I exist ! That's how I have always existed ! It must be a mistake, it's not possible..."

The panic that had gradually left his veins came back in full force and almost blurred his sight with tears of anguish.

'Had he stumbled upon a universe where his existence had been erased ? Or one where he just did not exist ? How was he going to justify that to the people in front of him ? Weren't they going to take him for a liar, trying to infiltrate he-didn't-know-what for an-other-unknown-goal ?'

But again, he was interrupted in his inner monologue, this time by Aizawa.

"That's what we thought too, but since Tsukauchi's Quirk did not react..." He left off in a mumble, seeming to be increasingly irritated by the situation.

Tsunayoshi frowned, his hands clenched on his sheets, and asked, yearning for explanations.

"The Quirk of Tsukauchi-san ?"

Director Nezu, who had meanwhile found a way to put his paw on a cup of tea, spoke.

"It seems to be true that you're not familiar with Quirks, Sawada-kun. Tsukauchi-kun's Quirk allows him to detect lies."

A small 'Oooh' mixing surprise and admiration escaped the little brown head, who could not help but ask if it was reliable. It must have been the first time he met someone with an ability that was close to his own, his Hyper Intuition, who often reacted when he was being led. The detective did not take offense at his question full of sincere curiosity and answered with a smile.

"Pretty much, yes. It's convenient for my work, and it's rarely ever been incorrect."

Tsunayoshi nodded silently, addressing a small smile of thanks to the man, inwardly worried about what a human lie detector reputed to be infallible could become and suffer in the wrong hands. He hoped that the laws of this world would protect this type of people, whose cases painfully reminded him of Fûta's, who was forced to flee for much of his life, because of his ranking abilities so coveted by the Mafia. He was really happy that the boy had found refuge at home under the strictest protection of the Vongola, and he had no shame in using the power and influence of his Famiglia if it was to allow a little boy to live a quiet and un-frightened childhood without having to worry about where he would sleep at night.

Professor Aizawa's monotonous voice was heard again, as he did not relieve the Decimo of his gaze.

"You seem to get to the concept of Quirks very quickly, Sawada."

The suspicion he had for him was no longer even trying to be concealed, and the Decimo swallowed, responding nervously.

"T-To be honest, I'm not sure I really understood very well what it was..."

A little silence settled, quickly broken by the sound of a cup gently placed on a saucer, and then by Nezu's voice.

"Sawada-kun, where you come from there is no Quirks, correct ?"

He frowned at the wording, too particular to be due to chance and nodded slowly.

"That's what I was thinking. Sawada-kun, you must come from a world other than ours !" said the director, giving him a big smile, as if he had not just dropped a bomb.

The professor raised a wary eyebrow as the nurse and detective frowned. Tsuna felt his mouth fall open wide, not sure how to react.

He did not know how the little white animal had come to this conclusion without the wisdom of the different temporalities that Tsuna possessed, because, in view of the reactions of others, it was not a common thing to travel in time and space here. It was both impressive, and a little scary too.

Fortunately for him, his astonishment did not detonate the scene, and no one noticed the sudden tension in his shoulders, or if they did, they did not say anything.

"Director, it's a bit..." Tsukauchi began but was quickly cut off by Nezu.

"What ? Incongruous ? Unlikely ? I think everyone in this room can say the same about myself, a talking animal, who has developed a Quirk, and of all those superpowers carried by practically the entirety of this humanity. In this kind of subject, the limit of probabilities is broken more often than you think."

A new silence stretched, and the irritated sigh of Eraser Head broke the muzzled atmosphere of the room.

"Even if you say that director, there are other solutions that are more likely and easily verifiable..."

Nezu placed his now empty cup on the desk of the nurse who had just spoken, always smiling.

"Like the alteration of memory of young Sawada ? You can try with Aizawa-kun's Quirk, but I doubt that anything will come out of it."

Anxiety twisted the bowels of the Vongola as he felt the teacher's gaze on him, but he had no time to ask for explanations before the Quirk was activated. He felt only a little discomfort in his Flame, as if it were poked by a stick or if he had tried to contain it in the palm of his hand.

No, Tsunayoshi frowned, confused. It was more like trying to contain it with rice paper, which was very ineffective if you ask him. What was going on ? Again, he could not react, the sensation having disappeared when the man closed his eyes, seeming even more irritated.

"See ?" Simply said Director Nezu with an indulgent smile, before continuing.

"We can also hypothesize that the young Sawada-kun here, could have been raised in a bubble cut off from the outside world for reasons x or y, and was suddenly teleported to one of our corridors. Being left without any information about what might have happened to him."

The adults all sighed in unison, knowing fully well that they could not win in terms of thinking against the genius that was Yuei's director.

"u-um..." Whispering shyly, the brown-haired boy twisted the poor innocent sheets of his infirmary bed. He tensed when all those present in the room paid him new attention but did not break down. "I'm sorry if it's indiscreet, but what did Aizawa-san do ?"

Recovery Girl gave him a warm smile, where one could guess her irritation towards the shadow hero for his lack of tact.

"Aizawa-sensei's Quirk is called Erasure; it allows him to erase the Quirks in his field of vision. He activated it on you little one, to make sure you were not under the influence of a Quirk that would have altered your memory. But do not worry, it's perfectly safe."

Tsunayoshi nodded to the nurse, reassured that it was not just his Flame who had started acting up for no reason. Then he frowned, wondering why a power supposed to affect Quirks had caused his Flame of Sky to react.

Nezu joined his two front paws, a big smile on his face.

"That being said, it seems Sawada-kun here does not know anything more than we do. I propose that we let this poor young man rest and recover from his emotions ! We can think about how to deal with these issues tomorrow, there is no hurry, as the students will not come back until next week."

Mrs. Shuzenji strongly agreed with this idea, insisting that her unforeseen patient needed rest, not mental torture about miraculous apparitions or interdimensional travel.

The Decimo was a little surprised to see a doctor so determined to keep him in bed not usually surrounded by the most ethical ones, Shamal being just one example among many.

And before he could ask any more questions, the place had emptied, and he had made his goodbyes, not without the promise of a discussion scheduled for the next day.

Tsunayoshi let out a yawn and carried his gaze back to the starry sky, where a few dark clouds still passed.

He was not sure if he could really understand everything that had just occurred. This new unexpected trip into another dimension has been a very different experience from his usual chaotic days. He was alone, lost, and too exhausted to think.

It was not long before the young boy lay down and closed his eyes. A few tears escaping his control and rolling down his cheeks as he sinked into a dreamless sleep.

And who knows, maybe he wasn't the only shell to have strayed…?


Aaaand that's all !

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Until next time, have a nice day !

EDIT : This chapter have been corrected by my new Beta : Nurikuro ! Sorry for those who have read this chapter before, I hope your eyes doesn't burns too much lol

~Chaos~