A/N: Okay this is the new chapter! :3 Thank you for all reviewers (you maybe already tired hearing this but still SUPER THANK YOU! XD)/alerts (I will do my best to keep improving! ;D)/favorites (I'm glad that you like it! I won't stop the work! :D)

Recognitions:

- Reborn (Tsuna's world)… Adult Reborn (Tsunahime's world)
- Second name; Yamamoto, Gokudera (Tsuna's world)… First name; Takeshi, Hayato (Tsunahime's world)
- Others with single appearance (just like usual)
- Singular names (Lambo, etc)… different nickname can be based on their appearance/callings

Disclaimer: I don't own KHR

Summary: Now it's Tsuna's turn to go to Tsunahime's world! But what he saw surprised him more than anything else! "Xanxus-nii"? Adult Arcobaleno? Estraneo? Cracked Pacifier? Fulfilled Wishes seq. Fem27 & 27

Warning: GenderBend (Fem27), no Rainbow Arc (arcobaleno arc in manga), messed up age, Adult Arcobaleno, double people confusion, writing stuff

Chapter 3: First Past


"Sometimes the past seems too big for the present to hold."
- Chuck Palahniuk


Previously…

"HIIIIII! Why's there's blood here?" Suddenly a loud shriek came from inside the room. Adult Reborn immediately knew what photo Tsuna found from the word 'blood'. His eyes darkened as he stepped inside the room and he could see the image in front of him eleven years ago come to life once more; the day where everything changed.


"What's the matter Juudaime?" Gokudera asked with worried written all over his face as the others also started to gather around Tsuna. Tsuna turned to look at them with slightly trembling hands. He slowly showed them the piece of paper in his hand.

"T-this is blood… right?" Tsuna asked although he himself trying to convince it's not true. Most of them have wide eyes as they saw the people in the photo; it's none other than Sawada Nana, Iemitsu, and a small girl who undoubtedly Tsunahime. The room stayed silent before the infamous hitman broke the silence.

"Of course it is or should I show you a real evidence?" Adult Reborn said coolly before a black gun stretched and pointed at Tsuna, straight to his forehead. Tsuna's heart seemed to stop when he saw the seriousness in Adult Reborn's eyes; maybe it's one of the times that he felt like his life going to end.

"R-Reborn-san!" Both Gokudera and Hayato exclaimed in panic. Even Hayato and Tsunahime's guardians also showed the same amount of panic as Tsuna's group; despite his appearance, it still felt like the same boss they knew.

Adult Reborn slowly lowered his arm and scoffed. He then glanced slightly at the photo in Tsuna's hand before he narrowed his eyes and glared at the male version of the Vongola boss.

"Haven't you been taught about politeness?" Adult Reborn asked flatly. Tsuna gulped and raised his hands.

"I-I'm sorry!" Tsuna exclaimed. He's expecting another thing to happen but the next thing heard was only his infant tutor, with the same serious tone as the adult version have.

"That's… the late Iemitsu and his wife right?" Reborn asked. His counterpart, Adult Reborn, stared at him for a while before he answered.

"Hn, you seem to know about this. Where do you know it from?"

"Tsunahime obviously," Infant Reborn answered with a not-losing dangerous tone. Everyone didn't speak a word despite the series of pauses in the room. It made one wonder why the same person glared and treated the other version of himself with intense hostile.

"… Then I assume that the rest of the people here also know about this?" Adult Reborn continued which Reborn only responded with a simple nod. Adult Reborn glanced at Tsuna who instinctively nodded at the silent question.

"How much do you know?" He asked again.

"T-Tsunahime only told us that her…" Tsuna stopped uncomfortably and sadness overcame his earlier fear. "… her parents died when she's three… They were killed by the Estraneo Family and that's the reason she enter the mafia."

"… Then you haven't know anything yet," Adult Reborn said shortly.

"Huh?"

"Then why don't you tell us?" Infant Reborn asked. "I'm sure Tsunahime would have want Tsuna here to know about it too."

"You think that this version of 'Tsuna' is capable of handling such a traumatizing thing?" Adult Reborn asked back. Tsuna lowered his head as he thought that what this adult version of Reborn said was true. His tutor however has another idea which proved by a smirk appearing on infant Reborn's face.

"I do. After all, Tsunahime trust him too," Infant Reborn said with full confidence. Tsuna glanced at his tutor, 'Reborn…'

"Hm," Adult Reborn stayed silent, acknowledging the reason. He then started, "It seemed that Iemitsu hasn't died in your world. Have you ever met the Estraneo Family then?"

"Yeah, actually we just fought with Killian and his group," Yamamoto said.

"Rokudo Mukuro, Joshima Ken, and Kakimoto Chikusa were also one of the Estraneo, so we know basically about them," Fong added.

"The Estraneo was once a powerful family but they're not really considered as a threat… until they only show the real threat when they do some crazy experiments and created the bullet," Adult Reborn continued.

"The forbidden possessing bullet," Reborn clarified.

"They were marked as something that would later endanger not only the mafia world but also could lead a world war," Adult Reborn continued and Tsuna gulped in how dangerous the mafia world was; every detail just made it worse. "That's why there are families that joined together to do the extermination, one of it is Vongola."

"Tch," Ken looked the other way while Chikusa frowned at the explanation. Mukuro also didn't appear to be amused by the story of his past.

"T-the Vongola too?" Tsuna asked in disbelief.

"Of course at first Ninth has tried to forbid them from producing such things but they didn't care and left us no choice," Adult Reborn explained. "We made an ambush and we're convinced that there's only a little more of them left… but we didn't knew that the 'little left' were much more powerful than the people that were killed instead."

"Don't tell me… it's that Killian, kora?" Colonello asked.

"They're black horse; they never step out in the outside. We've only knew about them when suddenly the Estraneo fought back with such a powerful force. It was only then that we tried to search for their information," The atmosphere started to change for the worse again as he continued. "They're a secret branch and actually have separated itself from the Estraneo and become an individual group themselves."

"Then why…?"

"They reconciled after a pact made by the Estraneo and their group; which was the amount of power they divided after they beat the whole mafia, or so it noted," Adult Reborn answered. "Despite their great fight, they were overwhelmed by the number of fighters which were far too much of a difference. And so… they pick another option."

"Another option?" Koyo asked.

"Is that experimenting on the children?" Infant Reborn asked.

"Yes… but this so-called 'secret branch' was much trickier than that," Adult Reborn stopped and his tone changed into one that full of hostile. Tsunahime's guardians and Dino also looked bothered, but much more like angry rather than bothered.

"Trickier? Were they experimenting on local people instead of their own family members to decrease the loss?" Adelheid asked.

"If it goes like that, then what's the effect on Hime? They did such a brutal, inhuman thing to her; they shouldn't be let off only by instant death!" Hayato suddenly exclaimed as his frustration blew in the air. Tsuna gulped as he saw the serious, angry face of Hayato; it's so intense.

"Calm down, Gokudera," Takeshi tried to calm the storm guardian down. As a fellow of Tsunahime's guardians, of course he also knew what Hayato meant but decided that the best was to keep Hayato from bursting out his anger right now.

"Ou, hold yourself together to the extreme!" Ryohei also helped Takeshi.

"What did he meant by that? 'Inhuman thing'…?" Enma asked softly.

"They killed Sawada Nana and Sawada Iemitsu… and then kidnap the last heir of the Vongola left," Dino said solemnly which was very rare of him. His face seemed to hold his anger in, or even his frustration. None of them really understood the meaning of the words he said though.

"Dino-san…"

"The Vongola have only two choices; continue the mission regardless on Tsunahime's condition, or stop and make a treaty with the Estraneo in exchange of Tsunahime's safety," Adult Reborn continued.

"But… then isn't it better if they make Sawada Tsunahime's safety priority?" Kaoru asked.

"That's right!" Skull exclaimed.

"Hmph, if they were to make Tsunahime as a hostage, isn't it foolish to kill her instead?" Verde asked with his arms crossed. The topic surprisingly interested him enough to make him listen to the whole conversation.

"What he said is extremely true; there's no need to hold a hostage if you kill it for nothing," Sasagawa agreed.

"Idiot, don't you understand what we've said about what they do to the children there?" Adult Reborn snapped.

"…!"

"Y-you don't-! B-but… that's!" Tsuna stammered as he thought of the terrifying scene.

"The experiment itself only will kill if the dosage really exceeded its normal limit, or at least the body's limit in taking the medicines they used," Dino continued with pain in his face. "It was a torture to death."

Tsuna turned his head and looked at Mukuro who stared at the empty space in front of him. His face mirrored how he felt anguish of the memory and Tsuna also overwhelmed by the guilt; he never knew that Mukuro has such a past. 'Mukuro…'

"Mukuro-sama…" Chrome whispered worriedly and stared at the teen in front of her.

"Then Tsunahime was…"

"Well we did found her dying on the scene. If only they did one more experiment on her then there'll be no hope for her…" Dino inhaled deeply before a small smile appeared on his face, "But she lived, and that's probably why she's so grateful at living."

"Thank goodness…"

"But how did it end? Did the Vongola really defeat the Estraneo?"

"The battle ended before the Vongola decide on what they should do with the choices," Dino shrugged slightly and a small relief changed his expression. "It was done in not by another mafia family… but rather a young Estraneo boy who also one of the victims. His name was famous in the history of the mafia… Rokudo Mukuro."

"Oooo!" Most of the group turned their attention at said person.

"But now that explains why she seemed to know about Estraneo so much, byon," Ken make a conclusion.

"Kufufufu," Mukuro snickered, 'No wonder she seemed to understand… her eyes like sharing the same pain I felt…'

"But to think that she could be that cheerful after all that happened… that girl's tough," Verde commented. Tsuna's expression dropped at the remark. To think that he's almost gave up far too many times on small things; he's really nothing compared to her huh?

"Tough? Well, that's one way to put it. But that's not really what we saw in her at those times," Adult Reborn said, interrupting Tsuna's depressed thoughts.

"What do you mean?"

"Hm, have you ever thought about jumping from a third floor balcony?" Adult Reborn asked as he looked at a direction through the crowd in front of him. Everyone's attention also turned to the white balcony that's separated from the room by the floor. Once again the fact shocked their minds.

"You don't mean-!"

Suddenly the door opened and they could hear a loud chatter of children's voices with a familiar snicker also heard softly. Tsunahime appeared from behind the door with Lambo and I-pin on her arm and Fuuta walking beside her.

"Everyone, sorry for the wait!" Tsunahime smiled at them. When the room kept silent, she noticed the tense and serious atmosphere, not to mention those terrified expression hasn't gone from their faces. She knew almost immediately what happened while she's gone but she giggled instead, "What's with that serious look? It doesn't fit you."

"Tsunahime…"

"Hey look, look! It's Tsuna-nee's twins!" Lambo, who's in Tsunahime's arm pointed at Tsuna excitedly.

"Aiya! Spiky hair!" I-pin also commented earning Tsuna to sweat dropped. Well, at least he's not seen as an extremely strange thing considering that she's not wearing glasses right now.

"Kufufufu, I never thought that I will meet this kind of event," Rokudo Mukuro from Tsunahime's world said as he saw the group from the door. The whole group mind quickly diverted into the just-appeared figure. 'Lambo, Mukuro, and Hibari-san from both worlds are exactly the same!'

"I was wondering how we could distinguish them from your and my world…" Tsunahime smiled and tilted her head to a degree. "Any idea?"


A/N: The last question asked by Tsunahime could also be answered by you guys~! She's indicating to Lambo, Hibari, and Mukuro, so if you have any idea how to distinguish the features (earrings, watch, tonfa's color lol, etc) you can share it and maybe they'll show up just like that XD

Questions, questions, questions!

Q: Soooo… all the past will be like this? Story-telling by Adult Reborn or someone?
A:
Maybe I will put it more details by making it from Mukuro's or any other chara's POV. But that might be an extra only, I don't know.

Q: Your explanation is kinda flat.
A:
"Explanation…" and then they're surprised! And then explanation again… and then surprised again! LOL

Q: Dino seem so serious hereeee. Please make him more like the fun-and-cheerful Dino again!
A:
Only because this chap is serious and dark-theme. And because Dino also have deep care for Tsunahime, he of course felt very anguish at the thought that Tsunahime has been through that.

Q: How did Adult Reborn know all about this? And also Dino? I thought that this should be the secret of the Vongola?
A:
Because Reborn is a very trusted hitman in the Vongola, or even in the whole mafia. While for this world, Dino also have a very deep relationship with Tsunahime and automatically, the Vongola too

Q: Isn't it rather strange to see the word "Adult Reborn" and "Infant Reborn"?
A:
It's the best way to distinguish them since they both only have one name with no first or second (family) name

Q: Why I-pin sees Tsuna as spiky hair?
A:
Because Tsunahine's hair isn't spiky.

Q: Huuuuu Mukuro didn't seem to react much here… no fun!
A:
I know that this should be their (Tsunahime, Mukuro, Ken, and Chikusa) "story debut" but… maybe I'll make them revealed much more in detail and emotion at the next chapters.

Q: Soooo when's the others coming?
A:
Soon! Most probably on the next chapter if you don't mind a time-skip ^^

Q: Adult Reborn seem to be so serious here… but on the same time he seemed to be more… caring? At least to Tsunahime?
A:
… not too OOC right? What do you think?

Q: Tsuna seemed to be depressed a lot here!
A:
Yeah because the dark past about Tsunahime bothered his mind greatly. Moreover the fact that she could endure such hardship while he can't

Q: I see you improve Arcobaleno's and Shimon's existences… but Chrome?
A:
OMG you wouldn't believe if I tell you that I forgot she also got transferred. Because what I remember is the girls (exclude from Shimon and Arcobaleno) didn't went with the group… so I thought Chrome also the same… so sorry Chrome-fans! *bow*

Q: Phew, faster than the last update!
A:
Actually there's a reason behind this… hehe. Nonetheless, I hope I could at least reveal about Arcobaleno & Tsunahime's past here before the Arcobaleno arc in the manga finished. Why? If you're curious… just ask me through PM/review hehe

Q: You're sooo slow in review replies…
A:
I'm sorry, lately I've been rather lazy in opening internet…