Disclaimer: (getting tired of writing this) I do not own Katekyo Hitman Reborn! Need I to add anything more? T-T

Warning: Many difficult things explained below. (That's why I changed the rating to M). You could skip it if you don't like complicated things. But if you really wanted to know what I have in mind about the future's situation, continue reading. If you decide to skip this, read my Author's Notes first.


Chapter 6 Closed Loop Opened Loop

"Irie Shoichi received some package from the Bovino Boss last year?"

"Yes. Apparently, Lambo landed in his house after an explosion. After that, a messenger from the Bovino arrived to deliver a summer's assortments for apology. The assortments were supposedly delivered to the Sawada household under Reborn's name. But because the messenger saw Lambo with Irie Shoichi, he gave it to him instead."

Gokudera turned his attention from Dino to Lambo.

"What is your saying in this, stupid cow?" he asked him. Lambo stiffened at his demanding tone.

"I - I don't know!" Lambo answered, trembling under Gokudera's death glare. "I swear, Gokudera-shi! I don't remember anything! You know how my child-self has the tendency to attract trouble. Besides, I'm only five in this era!"

"He's right, Gokudera," Yamamoto interjected when Gokudera begin to open his mouth to snap at Lambo. Lambo let out a small relieved sigh. "You can't blame him for something he can't remember."

"Tch!" Gokudera threw the papers aside, onto the table. "That was the only connection that Irie brat got to the Mafia! What the fucking hell could have happened to him to make him join Byakuran?" He read another report paper and scowled deeper. "What's this report about the Gesso Famiglia?!"

"Which one?" Dino peered at the reports. "That one … As you can see, that one particular Mafia Family is the only one we don't have any detailed information on. My investigation squad could only manage those bits of information in one night."

"And why's there no fucking thing about Byakuran?!" Gokudera asked Dino, throwing an unsatisfied look at the Tenth Cavallone Boss. Yamamoto frowned at the Gokudera's tone of voice.

"I told you, Gokudera!" Dino replied, starting to get annoyed at him. "Those bits of information are better than nothing!"

"My squad could do better." He muttered. "They –"

"Are not here and stop talking like that to Dino-san, Gokudera!" Yamamoto interjected angrily. "Remember who you're talking to! He may be younger than us in this era but he's still the Cavallone Tenth Boss! You always respect his future self, so can't you do the same with his younger self?"

Yamamoto was really pissed off this time. He's not wearing the laid-back smile he'd always known for. "Remember that we're the one asking for his help. Or have you forgotten that you're the one suggested the idea of asking his help?"

Gokudera turned his head away from Yamamoto's glare. "Tch! Fine!"

"I apologize for his rudeness, Dino-san," Yamamoto said to Dino. "He didn't usually behave like this."

Dino sighed and shrugged it off. "It's okay. I know he's just too anxious."

"And you!" Yamamoto turned to Gokudera. "Could you explain about that G-Script thing you wrote already? You can't keep mum about it forever!" Gokudera glared at Yamamoto's pissed off face. "And what do you think you'll do even if you found out about Irie Shoichi and Byakuran? Kill them?" Yamamoto continued his logic. "I think they're still teenage boys in this time. If you kill them now, what do you think would have happened to our future?"

"What do you mean by that, Yamamoto?" Dino asked. He looked really puzzled at Yamamoto's sentences.

Yamamoto sighed and rubbing his temple. He never was the kind of people who explained many complicated things. "Lambo… Please explain. You're the one telling me what would happen if someone from the future meddling with the past."

Lambo pointed himself and gaped at Yamamoto's words. "Me?"

Yamamoto nodded and patted his shoulders. "I know you're kind of confused at it yourself. But you're the best person for this." He glared at Gokudera. "Usually he's the one good at explaining complicated things. But seeing he has started to lose his mind, I'll depend on you."

"What do you mean, losing my mind?!" Gokudera grunted. "It's not like I'll kill those bastards if I found them! I just wanted to know how things turn out like this!"

"Please, explain it first, Lambo," Yamamoto said, ignoring Gokudera's words. "Dino-san needs the information."

Lambo sighed in defeat and scrunched up his face, trying to remember all the things Bovino Boss have told him when Tsuna officially became the Boss of Vongola.

"The Bovino Boss once said that the Ten Year Bazooka shouldn't be played around. Time is one of the most complicated things ever created beside the universe itself and human brain." Lambo began to explain. "As far as time travel was concerned, it's getting more and more complicated. Theoretically, the time itself has self-consistency. It can prevent things like time inconsistency from happening.

If something changed in the past, the time will make it looked like the changing has occurred in the future and thus our future self's memories will be changed. It will create a closed time loop.

That was if they ever returned to their own time. Worst possible scenario would happen if the Bazooka's broken or not working after they switched and thus remained in the past. When this happens, the time loop opens. If they change something that should be happening in the future of their past self, there'll be…"

Lambo scratched his own chin. "There'll be… hmm… What's the word?" He muttered to himself.

"There'll be time paradox, stupid cow!" Gokudera snapped. "Meaning they could disappear all together."

Dino's brow immediately furrowed.

"Yes! That!" Lambo exclaimed. "The thing is…"

"Basically, there'll be time inconsistency," Gokudera cut Lambo's explanation. "Another parallel world created. There'll be the world where the past of their past's self changed but the world where their own future remains and the world where the past of their past's self changed but their future changed too."

"That… and Bovino Boss always tells me that some people who had tried to meddling with their own past, trapped in time paradox." Lambo continued. "On one particular case, someone in Bovino famiglia once shoot himself with the Bazooka twelve years ago. His future self appeared but starting to change his past self's life. The Bazooka which he used to shoot himself was broken too. The poor man didn't disappear at that moment but starting to change between his past self and future self."

"You say twelve years ago, right?" Dino asked when Lambo took a moment to drink the grape juice Romario had provided him. "Two years have passed since the ten years gap. What happened to him?"

"He disappeared."

Dino sank to his couch and rubbing his temple. "So… What will happen to you guys?"

Lambo looked at Yamamoto and Gokudera, obviously didn't know what to say to the young Dino Cavallone.

Gokudera sighed and took off his glasses. "We don't know. I didn't think that the Ten Year Bazooka would malfunction like this," he said. "Or it could have something to do with Irie and Byakuran."

"Tell us what you know, Gokudera." Yamamoto scowled at him. "Why did you write that letter?"

With everyone staring at him like that, Gokudera couldn't do anything but sighed.

"It was all began with the investigation report from the Foundation," he started.

"The one future Hibari do?" Dino asked. Gokudera looked at him questioningly.

"I told him a while ago." Yamamoto told him. "But, I thought Hibari was only investigating the mafia rings, box weapons and those difficult things."

"If it's only that, do you think the Boss would spend hell loads of money on the Foundation and always sparred with that bastard every time he pleases?"

"He did? Was that why Hibari agreed to work with him?"

"Tch!" Gokudera spat. "That, I didn't know. I only know about what the Foundation was built for. It investigates the mafia rings, boxes, the Pacifiers of the Arcobaleno, the Ten Year Bazooka and some other things. The Boss once said to me that his hyper intuition told him there'll be some a new mafia family that seeks the ultimate power. I have investigated what the ultimate powers were and apparently it has something to do with the Seven Vongola Rings, the Seven Mare Rings and the Seven Arcobaleno's Pacifiers, otherwise known as the Tre ni Sette.

Currently the Mare Rings were in the possession of the Millefiore Famiglia. As far as I know, the wielders are Byakuran with the Sky Mare, Irie Shoichi with Sun Mare, Gamma with the Lightning Mare, Genkishi with the Mist Mare, Iris with the Cloud Mare and Glo Xinia with the Rain Mare. The Storm Mare Ring wielder was unknown.

The Millefiore have also taken possession of five Pacifiers. Which Pacifiers were in the Millefiore's hands, I didn't know. As we all know, the Arcobalenos were Reborn-san with the Yellow Pacifier, Colonnelo with the Blue Pacifier, Skull of Calcassa with the Purple Pacifier, Viper or Mammon of the Varia with the Indigo Pacifier, the scientist Verde with the Green Pacifier and the Gyoza-ken Master with the Red Pacifier. The Orange Pacifier wielder was unknown but I get the wind of it being in the possession of the Giglio Nero Boss.

The thing is, even if they get hold of all the Mare Rings and Pacifiers, they still couldn't complete the Tre ni Sette because Boss have had the Vongola Rings destroyed."

"Was that why he chose to destroyed all the Rings?" Yamamoto asked.

"Maybe yes, maybe no. He never told me the exact reason." Gokudera answered. "He destroyed the Rings even before we get the wind of what was this Millefiore Famiglia scheming."

"So what these complicated things got to do with the Foundation?" Dino asked. He gulped another aspirin to ease his head-ache.

Gokudera sighed. He's getting tired of explaining. He never stopped explaining things ever since he got to the past. And it's very painful to mention the Tenth's name. "It has everything to do with the Foundation." He answered. "At first, the Foundation only investigates the mafia rings and box weapons. But when Boss always got some ominous feelings when he saw Lambo switched with his younger-self since last year, while he never felt that before, adding it with what his hyper intuition had told him and my investigation, he order Hibari to investigate the Ten Year Bazooka, and the Tre ni Sette. "

"And the reason you wrote that G-Script letter is?" Yamamoto asked.

"Because the Boss ordered me to when he gave us this substitute rings," he answered. He looked at his Ruby rings and scowled deeply. "I never got the hang of it when he told me to gather all the Guardians and use the Vongola Rings if something bad or crucial happened to him."

"Wait a second there!" Dino interjected. "I guess I'm missing something here."

"What is it?" Yamamoto asked him.

"How's Tsuna died?"

Deafening silence fell. Lambo shifted in his seat uncomfortably, Yamamoto's jaw hardened and Gokudera's scowl went deeper. Dino cast a questioning look at them, demanding for another explanation.

"He…"Yamamoto began. The words were stuck in his throat. "He… was gunned down when he tried to protect the little guy from the Non-Tre ni Sette radiation released by the Millefiore. We never know who shot him."

"What's Non-Tre ni Sette radiation?" Dino asked with sad tone after hearing Yamamoto's explanation. "Was that how future Reborn died?"

"It's some kind of technology the Millefiore come up with to weaken the Arcobalenos," Gokudera answered. "They spread the radiation to all over the world. It's a radiation which deteriorates the Arcobalenos cursed bodies until they died."

"Cursed bodies?"

"We didn't know anything past that." Gokudera said to Dino. "Even my investigation squad and Hibari's Foundation couldn't found out exactly what they are or why they never grew up from their infant bodies. All we know was they used to be one of the best people in their own fields. Best hit man, best military trainer, best military commander, best illusionist, best scientist, and best martial artist."

Dino took a moment to digest all the information he got from the older Guardians of Vongola. He thought about the bleak future they came from.

"I only understand the Tenth order after I received the reports from Hibari some time after the Tenth died about Irie Shoichi investigating the Ten Year Bazooka too and why the Boss sent lawn-head to the Varia." Gokudera continued his explanation before. "I'm guessing that his order for me to gather all the Guardians and use the Vongola Rings when it supposed to be destroyed, have something to do with it. Maybe the Boss had foreseen the situations and tried to prevent it by destroying all the Vongola Rings. I'm sure he didn't plan on dying because he sent lawn-head to the Varia to ask for their assistance and looking for Mukuro's location. I've written the letter in G-Script just as a precaution so only I can read it. I never knew that all of this would've happened."

"I never heard anything about Hibari sending his reports about the Foundation to you," Yamamoto said when Gokudera rested his head in the couch.

"It was all planned when the Foundation was built." Gokudera told him while covering his tired eyes with one hand. "No one other than the Boss or me and Iemitsu will receive all his work reports even though sometimes we couldn't pinpoint his exact location. Hibari opposed to this of course, but when the Boss told him everything could happen to him and I am the second in command in the Vongola along with Iemitsu as the consigliere from CEDEF, he agreed. Not before he attacked me with his hedgehogs, though." Gokudera sighed. He looked at the people in the meeting room. "That's all I know. I've told you everything."

Dino gulped down another aspirin and massaged his temple while Lambo drink his fifth glass of grape juice. Yamamoto rested his chin on his hands and observed all the papers on the table.

"You remembered all Gokudera had said, Romario?" Dino asked Romario. When Romario nodded Dino stood up from his seat. "Then start the investigation quickly. Contact the main Vongola Headquarter, the CEDEF, the Varia and the Bovino Boss. Tell them I want to talk to them immediately."

When Gokudera stood up, Dino hold him down. "All of you stay here! If you said about the time paradox was true, you can't risk changing anything. I'll help you with all my resources to find out about Irie Shoichi and the Millefiore."

Gokudera frowned and thought about it for a moment. He sat down again when Yamamoto tugged his jacket's sleeve. "If you say so."


Author's Note:

Huf! Huf! Huf! I'm so tired!!

My head's almost explode from all the thinking and writing those theories. I didn't even know why the hell I want to write all those craps. If you think it's confusing you reading it, try writing it. I spent six full days researching, re-writing and editing this hellish chapter while I usually used up only two days for a chapter. Even though it's killing me, writing this really make my boring holiday more fun.

No special notes because I've written everything as clear as possible in this chapter. Ask me if you don't understand, maybe I left out a few things. I'm not answering what's already mentioned in the chapter. No re-explaining the time paradox! Explaining it once was a torture enough, don't make me go through it again. TT-TT

Remember that this was just a fanfiction. It's only a speculation. It doesn't have anything to do with the canon. Don't flame me for anything you feel isn't right. I'm sorry if all the theories mentioned are not as factual as it should be. I'm not that good with Physics. Hate it, even.

I think I have to retract what I've said in the warning. You can't skip this chapter, people! It has everything to do with the next chapters! Unless you want to get more confused reading the rest of the stories, you better choose to confuse yourself now rather than later, right?

More reviews and I'll up-date more. I need more love, people! Review means love! Love me more and I'll love you guys more. Please… So many people alerted and favorited this series but so few have written their reviews… Sniff… Don't make my spirit fade, my readers. I'm only human. I need MORE love!

I could just up-load every chapter once I've finished writing it, but it would mean I'll up-date it once every two days. Also because I'm too lazy to write more if there's no-one put some reviews, don't expect faster up-dates! Besides, I reeeeeaaaalllllyyyyy want to know what you guys think!

But overall, for those who have stay with me to this hellish chapter (T-T), you guys never know how much I want to give you more hugs and kisses and cakes if I'm able to meet you. Welcome for all of the newcomers to this fanfic series! Don't forget to read and review my other works! There's the Mystery series (Mistero del Pianista and Le Mystérieux Printemps) and Firecracker and the soon-to-be-published sequel Fireworks.

Special thanks to my beta-reader. Lots of hugs and kisses for you!


Preview:

Intermission I: Lonely Days (brace yourself for some angst chapter!)

The Ranking Planet cut all communication links with him after he was kidnapped by Mukuro. He lost his power when he decided to invoke the Omèrta and close his heart from all outside interference. Ever since then, the Ranking Planet ignored all his calls.

He never felt so lonely. The house had never been this empty. His heart had never been this empty.

--

He walked around aimlessly and thought about what he should be doing now that he's out of the house. Dino-nii's place was out of the question. He was afraid of the creepy Head Prefect of Namimori-chuu, so he was out of the question too.