Target 14: Oath of the Tri-Ni-Sette Skies – In which the three skies decided to make things official and drink Sakazuki together underneath the Sakura tree (and where in the Nura Clan sneakily watches on)
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It happened three months after the arrival of young Fuyuko and the addition of said girl in the main household as another Yuki Onna alongside her elder sister.
The clan, upon learning of young girl's permanent stay (unless she desires to return to the mountains once again and accompany her temperamental mother), scrutinizes and observes her with curious eyes- especially when it came out that the young girl is Tsurara's younger sister and an 'old friend' of their young master, though it didn't take for the Clan to warm up and accept the young girl.
Fuyuko, (or Uni as their young master and his friend calls her,) just so happens to be the much needed balance between the two boys. The young girl became the middle ground to smooth things out should the two boys' stubborn nature took over and they started arguing.
And, the Nura Clan found out after almost all of them fell were subjected to a wide array of dangerous and semi-lethal pranks (at this point, the clan wouldn't be surprised if those pranks are booby trap) was that the little girl is also a trickster and thought up of the more creative and innocuous looking (but very troublesome) pranks they had ever seen.
In certain circles, the Sky trio gained the label "Demonic Spawns from Hell," a nickname that everyone wisely made sure to never utter in the earshot of an overly protective and doting Rihan and Nurarihyon.
They can see that the bond their new Yuki Onna has with their heir was strong- full of trust, loyalty and adoration for each other.
So it really didn't surprise them that she would one day drink Sakazuki with Rikuo and be a part of the boy's Hyakki Yakō.
What surprise them, however, was how early it was that their young master decided to form his Hyakki Yakō (Rihan started forming his around the time when he was in his twenties) and that their heir also wanted a human to drink Sakazuki with him.
They weren't expecting it- but, under the watchful eyes of Rihan and Nurarihyon, didn't make any move to stop them. They can only watch as their young master sits underneath the Sakura tree with the two other children and starts the ceremony.
...…
Rikuo stares at the two skies as he took a seat in front of the table that Tsurara had graciously prepared for them along with the sake and cups that they would be using.
"You guys… Are you really sure of this?" He couldn't help but ask again.
Hearing the same question being asked to them after they brought up the topic of wanting to drink Sakazuki with their brother, Uni didn't feel annoyed- if anything, the young girl couldn't help but fell at ease.
Her brother really hadn't changed much at all. Hiding her amused smile behind her sleeves, the Sky Arcobaleno answers back. "Nii-chan, we wouldn't be doing this or ask of you for this if we are unsure about our choice."
Rikuo takes in her words, hearing the determination and resolve in it; he looks at the blue eyes staring straight at him solemnly with a steely glint that tells the Vongola Sky that whatever protests he had would be taken in and then rebuff (or ignored entirely, for all that Uni was as sweet as candy, the girl was raised and trained by the Arcobanelo who taught her to never give in and take shit from anyone else.)
Still, with the stubborn and tenacious personality that he was known for in their circle of friends, Rikuo lets out a protest against the idea. He still stubbornly held on to the hope that the two would suddenly give up the idea.
"But we're Skies!" He protests halfheartedly, already knowing the result of this venture upon catching sight of two pair of glowing orange eyes staring at him unwaveringly.
"Skies are naturally born leaders- I doubt that any Sky would willingly follow after the lead of another Sky. Especially the three of us- we're not known as the Great Skies for nothing."
Hearing those expected words, Uni and Byakuran exchange gazes with each other. Uni's eyes held disappointment- which swiftly turns into amusement the moment the Mare Sky opens his mouth to interject.
"Uni-chan, I told you so." The albino said smugly, an amused smile on his lips. "He'll use this particular argument.
"Hahaha, betting with you now is fun~ Usually, I would have lost the bet but you can't use your ability for something as trivial as this." He cheekily adds.
"Byakuran," The young Yuki Onna sent the boy a look full of warning before averting her gaze to look at the boy sitting before them seriously.
"And Rikuo-sama," She address the heir seriously and formally to signify that the one she was talking to was Rikuo, the heir and not her brother. "I think you are overstating things."
"We are leaders- and this won't change it at all. But, we don't want you to walk on this path on your own again. Byakuran and I want to be there for you when things get tough. We want to help you and support you with your dream of becoming the Lord of Pandemonium."
They were allies before but Uni was never satisfied with that- especially now, in this new life filled with new faces and names, Uni wants nothing more than to be around her Family. Wants nothing more than to be with people who remembered and knew of Uni and not Fuyuko.
She wants to be there for her brother when Fate tests him again. She thinks of the visions she had, of blood and death, of fighting, of the death of her brother's father- Uni didn't find it in her to act oblivious and resigned. She doesn't want to accept Fate as inevitable ever again.
"And," Uni adds, a cheeky smile on her face and a teasing glint in her eyes. "Have you forgotten, nii-chan? Byakuran defeated me and so I became his subordinate. And you," She pauses a bit to take in the pained looks of the two- it was still a wound that hurts when mentioned, even though they have already moved on with it.
"You defeated Byakuran in that time." She reminds, not daring to mention the fact that it wasn't defeat that the insane Mare Sky had suffered from- after all, it wouldn't do for their eavesdroppers to know that Byakuran died in the hands of Rikuo (they didn't broach that topic after that talk that resulted in so many tears and shouts.)
"If we use the traditions of your Family, the loser became the winner's subordinate. As such, we became your subordinates the moment Byakuran lost." She continues on, regardless of the looks the two sent her.
Rikuo's face scrunch up as he processes the Yuki Onna's words. "That doesn't even made any sense!" He protests. "We're not even in the same Family. Also, you two were Boses of your own Famillies. Why do you two want to be my subordinates now?"
"Honestly?" Byakuran probes and seeing Rikuo nodding his head, he and Uni exchange looks with each other before the Mare Sky shrugs.
"We'd rather not build our own force you know? It's pretty hard for me considering I'm a human," The only human of the Great Skies answers back. "And then Uni's already affiliated with your Clan in the first place considering that her mother is part of your grandfather's Hyakki Yakō. It seems easier that way."
Rikuo raises an eyebrow at the answer. Tlting his head, the Quarter Yōkai sent Byakuran an unimpressed stare. "Seriously? Since when did you ever care about politics? Or even considering your race? I remember a certain someone always sticking his nose in wherever has the most chaos and fun."
Byakuran grins sheepishly before turning to Uni with an innocent look. "I tried, Uni-chan!" He chirps.
Uni sighs in exasperation at Byakuran's unrepentant expression. Seriously, he should at least take this seriously- although Rikuo looks ready to cave in. At least, that made the other Sky aware that they didn't have much of a choice in this matter as well.
They'd die before they ever consider leaving Tsuna here, all alone. Even if Uni wants to go and look for the rest of the Arcobaleno or Byakuran would search for his Guardians. They can't leave their brother who was hurting but hiding it from everyone.
"It's because this is far more interesting before, nii-chan." Uni answers sweetly, a charming smile on her face. "I mean, think about it-"
"I honestly think our previous life wasn't interesting." Rikuo interjects. Their life before was more chaotic and full of death than he'd like. He lost them. Failed some of them. He broke them.
The two ignores his protest with practiced ease and continues to speak, their eyes now shining with excitement and glee- looking perfectly like children who discovered a new and interesting toy (making them look like their current age for once.)
"Yōkai! Creatures of legends and tales! Our current life now is full of adventure, magic, suspense and the supernatural-"
"No offense, but weren't we also living that life before? I distinctly remember wondering what kind of nonsense will crop up tomorrow- and what other insane things would happen."
"And," Uni continues considering that Byakuran bursts out laughing the moment he heard Rikuo's input and the comparison between this life and their previous. "We really don't want to bother with building our own forces from the ground- or in Byakuran's case, training to be an onmyoji."
"I think," Rikuo starts after taking in the last statement. He moves to pour sake on a cup as he continues to speak. "That the last statement is the actual reason."
He didn't comment anymore as he smiles brightly at the two sheepish Skies. "Well, at least in this way… Whatever it is that Lady Fate has in plan for me, you both also have to partake and help rather than add more troubles."
He then drank the sake, leaving a third of the contents for Uni to drink.
Uni pauses a bit as she hold onto the sake cup, dread pooling in her stomach at the prospect of the amount of trouble and Chaos waiting for them in the future (Tsuna ranks first in the list of Trouble Magnets in the Cosa Nostra after all, so expecting a life free of Trouble and Chaos from the number one is absolutely impossible.) She steels her nerves as she drank the contents of the cup.
"Rikuo-nii-sama," She address the boy, a bright smile on her lips as she places the cup down to the table. Uni decided the change her address of her Lord (her brother and boss. It's exhilarating, knowing that there's someone who would look out for her, would care for her and give her a direction, a way to live and a reason and resolve to use her Dying Will. Uni lost it the moment she's no longer the Decima. She lost it the moment Uni became Fuyuko.)
Her brother would have been Tsuna-nii still or Rikuo-sama. But instead, the selfless Sky decided to combine the two- he still hasn't decided it yet or realized it yet. No matter how he insists that he's Rikuo now, that Tsuna should be dead and stays dead… Uni knows her brother still identifies himself as Tsuna.
But she's sure, that one day, her brother would realize that there's no Tsuna or Rikuo only. They were one and the same. There wouldn't be Rikuo if there's no Tsuna- and Tsuna wouldn't be himself if there's no Rikuo. The moment he was reborn with the memories of his past life, Rikuo and Tsuna became one.
"Why do I have the feeling that what fate has in store for you would be similar to before?" She murmurs to herself thoughtfully. Fighting and fighting. Fighting for friends. Fighting to protect. Fighting for your pride. And then, after, you fight for you survival. You fight for your dreams and goals.
But this time, Uni hopes that they just have to fight to protect those they cherished. To protect the Clan, their friends and families instead of fighting to live for another day.
She hopes and prays, that this lifetime wouldn't be as bloody as their previous life.
Uni thinks of her death- of the sight of Gamma, Nosaru and Tazaru dying before her eyes as they protected her (silly, defenseless Uni). She thinks of the feeling of bullets entering her body and the sight of that pair of eyes watching her die coldly. What Uni regrets the most was failing that child. She wasn't, isn't, fated to be a mother. Still, when she was that malnourished and small child at the streets and saw his future- Uni couldn't help but reach out her hand to try and change it.
She didn't regret it at all- even if it hurts to know that someday, the child whose Fate she changed would be the end of her.
"Ri-chan! I think that I'm probably the first ever human that joined a Hyakki Yakō!" Byakuran states proudly after solemnly drinking his share of the Sakazuki.
Uni blinks, the heavy thoughts and memories of that time clearing away at the sound of Byakuran's delighted and smug voice. She laughs a little and then covering the smile forming on her lips with her sleeves; she gently smiles.
"That's true," She agrees, very much amused with the topic. "I have never heard of a yōkai accepting a human into their Hyakki Yakō before. Congratulations, nii-sama for being the first to do that." She teasingly adds.
The two Skies grins as they hear the very familiar groan of despair from the Vongola Sky.
"Of course I would be the first. Have you seen any yōkai who would willingly make friends with humans in this day and age? They're probably too busy hiding their own nature, gathering fear, or antagonizing others to even think about it." Rikuo retorts.
Byakuran laughs at his brother's retort but sobers up when he notice Uni pouring sake into three cups with a solemn look on her eyes.
"Let's take an oath again."
Hearing those words, the two boys blink before their demeanor shifts. Rikuo's innocent smile and childish façade disappears as what made him Tsuna took over; his posture and aura that screams of mischievous child fades away and a weary old soul that had experience too many things and came out as a survivor shows itself.
Byakuran, on the other hand, loses his cheery and foxy smile as he grimly stares at the cups on the table. The persona of a mischievous civilian child drops as a Mafia Don and mentally unhinged old man took over.
"The oath from our past life became null the moment we died or decided to leave that life and start anew. This time, let us once again swear an oath. Before, we swore through blood… Now, let's swear through this cup of sake in hand."
As she speaks, she hands her brothers their own cup. Uni watches the two clutch the cup and nod in approval at her words.
"An oath," Uni continues on. "To support each other through thick and thin." Her flames stir and curls around them.
This time, they would be there at the very beginning when things would turn rough. This time, they wouldn't let anyone of theirs suffer through being forced into a position they didn't want, carry on a burden of a curse and knowledge of future events, go insane, or any trouble that'll come their way. This time, they would watch each other's back without thinking of the wellbeing of the respective Famiglias- they would be able to stand together now without considering politics.
"An oath," This time, it was Byakuran who spoke up. He sent his sister an approving nod before he continues on. "For loyalty, to never betray or turn away in times of need." His own flames joined Uni's; the two flames dancing with each other in a tempo and melody no one can hear.
This time, they wouldn't turn or look away from each other's plight. Most especially, there wouldn't be any conflicts between them. They wouldn't let the Future that Never Was happen ever again.
"An oath," Rikuo murmurs after taking in Byakuran's words with a sad smile. "To never forget about the burden we carry, to never forget that we are of the Tri-ni-Sette, to never forget of time, of parallel worlds, and of the Curse of the Arcobaleno." His flames, inaccessible and dormant as they are, reaches out for the other two and tries to join the dance.
"We swear," The three children solemnly held up their cup to the sky, a determined glint in their eyes.
"As the Tri-ni-Sette Skies, an oath of friendship! Of loyalty, of honesty, and of commemoration!" They chorus together as they drink their sake at the same time and their flames merged- becoming a symbol of their oath, their resolve and promise to each other.
...…
Meanwhile, as the three children gathers together and starts the ceremony; the curious yōkai of the Nura Clan, Nurarihyon, and Rihan discreetly hides around the foliage of the garden and the surrounding structures to eavesdrop and watch the monumental moment.
Some yōkai lets out a derisive sound when they hear their young master questioning his two friends once again. Surprisingly, the child who looks so eager to become the next head and their Third doesn't seem that happy to have his own Hyakki Yakō.
"Isn't it so obvious that they want it?" One yōkai mumbles to itself, feeling already worn out at the question. After all, they've overheard the question being asked so many times in the course of three days (two days where in the two children bothers and nags Rikuo to form his Hyakki Yakō with them as first two members.)
"Shhh!" The ones near it hushed the speaker as they leans closer, just in time to hear the young boy halfheartedly protesting that the three of them are skies.
"Huh? Is that some sort of human speak or something that relates to their past life?"
"Maybe? What else could that be besides a reference from their past life-"
"Shut it!" The others reprimands the chattering yōkai once again as they inch closer to hear the trio's conversation better.
Rihan lets out an amused chuckle at his Clan's antics before returning his attention back to the three children sitting underneath the sakura tree- just in time to catch the little Yuki Onna addressing his boy so seriously unlike her usual call of big brother.
"And Rikuo-sama," The noisy bunch settles down when they heard the serious and formal tone of Fuyuko- and her blue eyes (with a tint of orange) stares at their heir earnestly. "I think you are overstating things."
They all collectively snorts while agreeing with the child. Rikuo seriously needs to stop exaggerating things. True the situation's a little bit serious- but the boy really needs to lighten up besides the times when he's on his pranking mood. He's too serious that they sometimes wonder how he had ended up being that when he has Rihan and Nurarihyon as his role model.
"We are leaders- and this won't change it at all. But, we don't want you to walk on this path on your own again. Byakuran and I want to be there for you when things get tough. We want to help you and support you with your dream of becoming the Lord of Pandemonium."
Rihan's eyebrow rose up in surprise, from hearing the admission of the two being leaders- and their resolve and determination to be there for his boy (Which relieves Rihan more than he'd ever admit. He isn't blind after all, he can see that Rikuo is barely hanging on to this life. Just one wrong push and move would make his boy let go and be submerged in his past life- and for all that Rihan looks lax and carefree, he loves and protects his son with all he could.)
"And," He hears the young girl adds, as a cheeky smile and teasing glint shows how amused she was with what she's thinking of. "Have you forgotten, nii-chan? Byakuran defeated me and so I became his subordinate. And you,"
They all shamelessly shuffle forward to get a better view of the situation- at this point, Rihan's already sure that the three perceptive children know that they have several… spectators watching them now.
He looks closer and sees the pained expressions' of both his son and Byakuran, not only that, he notices the brief pain the blue eyes of the usual serene and calm girl.
"You defeated Byakuran in that time."
The hanyō narrows his eyes thoughtfully as Fuyuko's words sunk in. He didn't need to use half of his brain to figure out that there was more of the matter than the three lets on. Rihan can hear the strange tone on 'defeated.'
He'd bet with Nenekirimaru on the line that it wasn't just defeat that befell on the albino child.
The man didn't want to think of the alternative though. Because if Rikuo didn't just defeated his brother (and Rihan doesn't mind it, that his boy would call the older child elder brother. He loath to admit it, but Rihan also sees Byakuran as his extended son as well- for all the trouble and chaos the boy causes, the albino grows on him,) then it means that Rikuo killed Byakuran.
And that's a thought that Rihan wouldn't want to admit- not because of his fondness for the boy, but that his son's kindness (it's there, hidden and tucked away when he's around yōkai who thought that being soft and kind is a weakness and a sign that Rikuo's a human through and through) wouldn't be able to do that. Not when he loves Byakuran fiercely and seems so protective of the albino.
"If we use the traditions of your Family, the loser became the winner's subordinate. As such, we became your subordinates the moment Byakuran lost."
Fuyuko's voice snapped Rihan out of his thoughts, and the man blinks in surprise at the information presented to them with that two particular sentences.
His subordinates murmurs the sentence again, focusing on the term 'family' and 'subordinates' more as an image or guess about their heir's previous life takes form.
"Oh!" One particularly imaginative yōkai lets out a sound of realization and everyone turns to look at it. "Young Master must be yakuza in his previous life!" It concludes, chest out in pride as it.
"And how did you came into that conclusion with just a vague wording from Fuyuko?" A raijū, in the form of a small white puppy to be exact, retorts.
"Vague?" One particularly dimwitted yōkai speaks out loud, mouthing the word repeatedly. "What does it mean? Can it be eaten?" It wonders.
"!!" The raijū lets out a muffled scream of anger. "You moronic group of imbeciles-" The yokai's word was cut off when their heir lets out a protest.
"That doesn't even made any sense! We're not even in the same Family. Also, you two were Boses of your own Famillies. Why do you two want to be my subordinates now?"
"Aha!" The imaginative yōkai let out a proud whoop- and was promptly hit in the head by an irate raijū next to it.
"Alright, alright. You guessed it right- Young Master Rikuo was part of the yakuza. An oyabun along with his friends. Can you shut up now? How dare you let out such loud sound?" It growls.
The yōkai scowls and sent the temperamental raijū a dirty look. "I sometimes wonder if you're actually a cat instead of a dog. You're so moody." The dreamy and… mentally unhinged nekomata speaks.
All surrounding yōkai simultaneously rolls their eyes as the cat and dog pair descends into their usual bickering- but before the verbal argument could turn into a physical fight, their attention was captured by the surprisingly logical and well-thought reason Byakuran gave.
"We'd rather not build our own forces you know? It's pretty hard for me considering I'm a human. And then Uni's already affiliated with your Clan in the first place considering that her mother is part of your grandfather's Hyakki Yakō. It seems easier that way."
"Seriously? Since when did you ever care about politics? Or even considering your race? I remember a certain someone always sticking his nose in wherever has the most chaos and fun."
Their heir is quick to answer and almost everyone find themselves nodding their head in agreement. Since when did that albino brat care about politics? Especially when the child usually doesn't even pay attention to the ramifications of his actions.
The brat didn't deign to answer their little master's retort; instead, Byakuran turns to Fuyuko with an unrepentant expression. "I tried, Uni-chan!"
They see Fuyuko sigh in exasperation at Byakuran's antics before she turns to look at their heir with a determined glint in her eyes that speaks of her resolve to help and support Rikuo's endeavor. And then that glint disappears as a teasing smile broke through her serious expression.
"It's because this is far more interesting before, nii-chan. I mean, think about it-"
"I honestly think our previous life wasn't interesting."
Rikuo quickly interjects the moment he heard the Yuki Onna's words and the eavesdroppers found themselves nodding their head in agreement. That's right, what's so interesting with the normal life of a human? Even if they're part of the underworld, it's not like there's something magical and different from the daily life of other humans.
"Yōkai! Creatures of legends and tales! Our current life now is full of adventure, magic, suspense and the supernatural-"
"No offense, but weren't we also living that life before? I distinctly remember wondering what kind of nonsense will crop up tomorrow- and what other insane things would happen."
"They're living a life of what?" Rihan couldn't help but uncharacteristically blurt out, worry settling in his mind as he thinks of what kind of trouble and life his son lives in. (The hanyō didn't agree with the other's assessment of how the three children used to be Yakuza Bosses- Byakuran might fit the bill for that, but the two other children? They're so nice and kind that Rihan thinks that they lived their life helping out people.)
He watches Byakuran suddenly burst out laughing at his son's protest and Fuyuko's amused smile and her blasé and calm at hearing the albino's disturbing cackling at the background as she continues to speak.
"And, we really don't want to bother building our own forces from the ground- or in Byakuran's case, training to be an onmyoji."
"Ha! As if Byakuran wouldn't be mistaken for a yōkai with his penchant for trouble and pranks." One yōkai who happened to be the unlucky victim of most of Byakuran's pranks comments bitterly.
They all found themselves nodding their head in agreement at the sentence. If anything, the moment an omnyoji laid their eyes on the boy- they'll probably summon their shinigami and then attack the boy in an assumption that he's a kitsune who can cover up his Fear skillfully.
He certainly acts like one really.
"I think that the last statement is the actual reason" Their heir answers back fondly, an air of helplessness and indulgence surround him. "Well, at least in this way… Whatever it is that Lady Fate has in plan for me, you both also have to partake and help rather than add more troubles."
And so, the Nura Clan watches on as Rikuo drank Sakazuki with the two children. All yōkai besides Rihan and Nurarihyon looking on in disbelief as a human ended up joining their heir's Hyakki Yakō. And as the three children starts to fall into the usual pattern of a round of teasing and playing around, they start to retreat.
They quickly turn back and settled down on the ground or their hiding places when they hear Uni's suggestion about swearing another oath like they did in their previous life.
Rihan watches on as his son's mask fell down, revealing the old weary soul underneath the childish and mischievous façade he always presents to anyone. It was jarring, seeing his boy whose smile is as bright as the sun turning into a jaded child. The hanyō wonders what kind of things his son experienced to look so tired and sad.
He sees the playful and foxy Byakuran disappearing and an aura of authority and tyranny surrounds him. What made Rihan stiffen and be on guard though, was the glint of madness and insanity in the boy's purple eyes.
It made Rihan wary about the child.
"The oath from our past life became null the moment we died or decided to leave that life and start anew. This time, let us once again swear an oath. Before, we swore through blood… Now, let's swear through this cup of sake in hand."
They heard Fuyuko speaks solemnly and the eavesdroppers; the younger ones, specifically, who barely remembers the tradition of old, look at each other incredulously. "Wait, what?" A young hare yōkai questions.
"They swore by blood?" It states in disbelief. "Did they cut their hand and then mix their blood while swearing an oath or what?"
"Hmph!" The raijū made a sound of derision. "You young ones are so naïve. Blood is one of the most sacred and important component of our body. Blood can be used as a medium for many things- for rituals, seals, gathering power and most importantly, for oath taking. A blood oath isn't just an oath you can break so easily without repercussions- and most of the time, breaking it would lead to death."
"The fact that these three made a blood oath in their previous life with each other shows that their relationship is more than we thought it was."
"Then if it's so solemn, why aren't they doing it again?" One yōkai asks questioningly.
The little raijū rolls its eyes. "How'd I know?"
"I think," Rihan joins in with their discussion as he watches the young Yuki Onna's hands tighten around the cup. "That it's because even if they think and claim that the blood oath they took are null and voided- Rikuo and his friends still think the oath is valid. They're probably just renewing the oath again this time."
With his explanation, the yōkai all settled down and resumed listening; just in time to hear Fuyuko speaking.
"An oath to support each other through thick and thin."
Everyone nods their head in approval at the practicality of the oath. An oath of friendship, rather than subordination. It shows that the three sees each other as equals- they wouldn't be surprised if the three would exchange sake and swear to be sworn brothers if Fuyuko's gender was male.
Their eyebrows shot up when Byakuran speaks up.
"An oath for loyalty, to never betray or turn away in times of need."
Rihan frowns, sharing a look with his father from where the old man was hiding. What made the three of them- all of them so loyal and steadfast to one another- to have an oath of loyalty? Most of all, for the words to be spoken with such a strange (for the hanyō has no other words to describe it- it was strange that it spoke of the speaker's regrets, determination and promise for something) tone?
The man shifts forward, wanting to see more of the three children's expression to glean more about it when his son speaks up.
"An oath to never forget about the burden we carry, to never forget that we are of the Tri-ni-Sette, to never forget of time, of parallel worlds, and of the Curse of the Arcobaleno."
Tri-ni-Sette? Rihan thinks as he tries to make those words that sounds absolutely foreign (seriously, were these kids foreigners in their past lives? Byakuran obviously sounds Japanese- though the boy's features proves otherwise.) What does it mean?
Does it have anything to do with their rebirth and how they seemed to remember their past life? The man thought to himself pensively.
And what does Time have anything to do with them? He thinks and then grimaces. Does Parallel Worlds even exists? And what's this about a curse of all things? Their bloodline is already suffering under the curse of a certain fox for centuries now. Rihan doubts that whatever curse it was (What does Arcobaleno even mean, anyway?) it wouldn't be something that's trying to end their yōkai bloodline.
He thinks of those years unknowingly making her suffer in anguish and guilt of being unable to conceive. He thinks of her pain and sadness and her condemnation of herself because of her inability to give birth. And then, he thinks of the guilt in knowing that it was him that caused her that pain, that caused her to leave and wither and die all alone- that it was because of the curse that befell on his father and their line that made them unable to have a child.
"We swear," He hears the three children speaks in chorus. Rihan looks at the three and sees them solemnly holding their cup to the sky, their eyes filled with determination. Was it just a trick of the light or did their eyes turn orange?
"As the Tri-ni-Sette Skies, an oath of friendship! Of loyalty, of honesty, and of commemoration!"
The Nura Clan tactfully decided to retreat, this one obviously feels more intimate and personal than the previous ceremony. There were a lot of unspoken and spoken things that gave away things from the three children's previous life and their identities.
Although they were curious about who their heir used to be and how he had lived his life before… They'll wait until the child is ready to talk to them about it.
They'll wait until Rikuo trusts them with that knowledge.
A certain Vongola Sky who was watching over the three children and understood all of the things they were talking about, wishes nothing more than to forget about hearing of this. It hurts and opens a can of worms that she doesn't dare to touch even with a ten feet pole.