Alluring Secret Black Vow

Warning(s): Language, Violence, Implied Dark themes, OCC-ness, Plot Holes, Confusion, Slow Build (Super Slow), Slash, Partial Dark! Tsuna.

Beta Read by: Tsuna-Renato-Sinclare31

Disclaimer: I own nothing except the plot of the story!

Vow 5: Finding Out The Consequences, and The Meeting of Reborn?!

Tsuna remembers a few tales created by his own kind (human race) about the life of Arcobaleno and some of them, he must admit, was quite morbidly fascinating due to the wild imagination of theirs, despite not meeting anyone of the famed unsummoned chosen seven.

And one of those stories, he finds it somehow amusing albeit it doesn't make much sense, is the story of the Lightning Guardian of the Arcobaleno, Verde.

The entity before him was known as a cold-blooded scientist, a one man group with his maddening inventions due to his superb intelligence.

He isolates himself from his group, as he was busy conducting with his (illegal) experiments and inventions that could par the human-highest technology. It was told that the things he created was used on humans, trying to dissect the mystery of their ways.

But…

The man-demon in front of him, doesn't have the qualities of those absurd tales. He was acting the exact opposite from it… Don't get him wrong, Tsuna knew his companion doesn't understand what is right from wrong; as he was born from the darkness but still looks can be deceiving. No matter how weird or civil the other is – the brunet can see clearly why he was part of the upper race of the survival chain in the underworld.

The obvious power, darkness, madness, blood, intellect and danger can never be fully concealed. Not to him, for a reason he won't reveal anytime soon. His musing was interrupted when Verde puffs his chest with arrogance as he sat from his coach while munching the food he had cooked earlier in these morning.

"Heh, I can't wait to see their pathetic faces once I told them about our new living arrangement. They would definitely jealous, especially Reborn."

"What do you mean by that, idiot-who-gives-me-a-headache?" Tsuna said with a slight irritation in his tone of voice. "I mean I can't wait to see everyone else's faces when I tell them about the living arrangements here when they have to stay with you." Verde said with a smirk on his face. "I honestly hate you and I don't really want to deal with you, and I bet it will be even worse with the other people as they come along." Tsuna replied with an irritated sigh, looking at Verde, wanting to wipe that irritating smug smirk off his face.

An emotion flash from Verde's face but the second it appears, it was fast gone next so Tsuna didn't manage to name it and before he can mention it, Verde cuts him off.

"Come on, Tsunayoshi don't be such cold a fellow. You and I can only be a certain distance apart within this week or else…" Verde trails off with a smug expression and Tsuna wanted nothing more than to wipe that smirk permanently from his face.

Apparently, the latter was an arrogant prick.

"Or else what?!" Tsuna asked with annoyance laced in his tone. Verde only replied with a smug smirk that was annoying Tsuna to no end. How on earth he was going to deal with him in 24/7 without any break?! He'll go insane! What more is to come of the others arrivals?!

A sudden idea pops into his head. He shouldn't have been thinking too much. He can just simply commit a mass-murder without being found out, plus no one would believe a supposedly no-good can harm someone as strong as an Arcobaleno, especially since he can't even hurt a fly according to them. And if they ever ask, not that they care about his opinion anyway, but still… he'll just tell him an extortion went wrong. See? Problem solved!

Tsuna cackles with his new master plan of eradicating the upcoming troubles.

Verde backs away from the dark aura is Tsuna subconsciously emitting, lashing out from his petite form. Maybe he went a little bit too far from his teasing?

Then, the brunet snaps from his musing and smiles at Verde with sparkles and rainbow. "Ne, Verde. Since you're hungry why don't I make you something to eat more?"

Before the mad scientist can refuse, Tsuna had pulled him towards the dining table, chanting a binding spell ensuring him no further escape.

And the following events made Verde regret at teasing the brunet as he learned his lesson in the very hard way: 24 hours of not being able to leave the comfort room due to food poisoning (Tsuna's skill can spar or more likely surpass with Poison Scorpio) gives him chills in the following days. And on the other hand, he'll leave the teasing for Reborn as this wasn't really much his forte, which leads him to his most embarrassing, downright demise.

The very moment that Verde was cleared of his food poisoning, he immediately wanted to run out of the house, but didn't, because of the consequences. So instead he turned around on the couch that he was on and looked into the open window space that connected to the kitchen in Tsuna's dorm room. "Hey Tsuna… I got something to tell you about the reasoning as to why we can only be a certain distance apart…" Verde called out to Tsuna, who was also in the kitchen at this time.

"What is it this time, Verde? If you plan on teasing me again, the same thing will happen again." Tsuna said while releasing a scary aura.

"No, it isn't anything like that. The reason we can only be a certain distance apart is because if we go beyond that certain distance, then it will lead to one or both of us being in pain or worse, lead to one of our deaths." Verde said with no arrogance in his voice. This made Tsuna curious. He only just then realized that he was actually serious, because he didn't have a smug expression or an arrogant tone of voice. He actually was using a serious tone of voice with a serious face. "You actually mean that if one of the both of us exceed a certain distance then one or both of us will be in pain or worse die?" He asked for clarification. Verde only responded with a nod, as he laid back down.

"Now you know why I was always trying to stay close to you." Verde said when he was completely laid down on the couch that he was on.

Tsuna only stared at the couch in amazement and annoyance. He had already taken the food off of the stove as he was already done cooking everything. It was meant as a light breakfast if anything. When Verde smelled the food he shuddered lightly at first, but slowly got up and went to the table. When he got there, he saw Tsuna already eating and so he slowly started to eat again, but was a bit hesitant, for good reason too. But when he realized that it wasn't poisoned, he dug in on the food and ate everything.

Later on that day Tsuna decided that he wanted to go to his favorite cafe. So by the certain distance pain fear, he had dragged Verde along for the ride. Little did he know that this cafe visit was gonna be a rowdy visit to the cafe.

Tsuna was just walking down the street, with Verde right behind him following him. Tsuna soon enters the cafe and finds a seat right by the window in a corner far from the door. A waitress came up to him and Verde and asked what they would be having to drink.

"I would like to have a French Vanilla Cappuccino with two slices of your guys Strawberry Shortcake." Tsuna said looking up from the menu that was placed in front of him.

"I would like black coffee..." Verde said with a bored sigh. As Tsuna stared outside, he felt a strong presence coming closer towards him and Verde, and he got on guard. Verde noticed the presence and found it irritatingly and annoyingly familiar.

"Reborn...What do you want?!" Verde growled out in annoyance and irritation.

Tsuna was looking into onyx eyes, covered slightly by a black fedora with a thick orange stripe going around it.

"Verde, is this another person in the acrobaleno?" Tsuna asked in an annoyed voice as he saw his order finally coming out of the back.

"Yes... He is one of us. Though he is nothing but a headache!" Verde said as the waitress came back over and handed Tsuna and Verde, their orders and then tried to flirt with the handsome humanoid demon he was staring at, known as Reborn. "Hey there handsome. Wanna go out some time after I get off of my shift~?" She tried to flirt with Reborn.

Key word, tried.

Tsuna had an unknown pang in his heart, like it hurt him to even watch what was transpiring in front of him. So instead he started to drink his cappuccino and stared out the window, but he was still listening to the conversation. "I'm sorry, but I'll have to decline you on the offer, love. I am a busy man after all~." Reborn said in a deep smooth voice with a seducing smirk. The waitress blushed at his smirk and ran away quickly. Tsuna finally looked back over still taking random sips of his drink, though keeping it warm.

"So...what do you want second acrobaleno that I've ran into?" Tsuna finally asked. Reborn just smirks as he sits down next to him and ordered an Espresso. "Well I am only here to see who was able to catch my interest. But it seems that I've found someone rather interesting here. Am I right Verde?" Reborn asked, though he only received a grunt in response to him from the other.

The waitress came back blushing with a napkin and an Espresso, as she was sitting down the espresso, she put the napkin under the cup for Reborn. When Reborn looked at the napkin it had a phone number on it. He grunted in annoyance, as he crumpled the napkin and threw it into the trash can next to their table. Tsuna raised an eyebrow at Reborn's actions.

"What was on the paper, huh? And what is your name?" Tsuna asked with curiosity.

Reborn smirked at him and said in that deep, silky voice of his. "Wouldn't you like to know, and that paper was nothing that caught my interest."

Verde was just staring out the window when he noticed another annoying presence, as he was about to grunt and huff in annoyance, Reborn beat him to it. Seems like Tsuna is in for meeting more than one arcobaleno today. Just fucking great.

"Why is that idiot here?!" Verde seethed out in annoyance.

Tsuna raised his eyebrow again. "Who is here again?" Tsuna asked with the still raised eyebrow.

"Colonello… an annoying idiot who thinks he is stronger than me." Reborn huffed out.

"Oh, then if that idiot comes here, then that will mean that I will be surrounded by three idiots." Tsuna said with a deadpan/monotone voice.

Reborn glared at him when he said three idiots. "Were you also including me in that statement of three idiots?!" Reborn asked with a tone of voice dripping of annoyance and irritation.

Though that question fell on deaf ears as Tsuna was already looking out the window as a tall, lean, and handsome, blonde man walked by and into the cafe for some coffee. Reborn saw who it was and huffed in irritation. Tsuna had taken another sip of his Cappuccino and noticed that it was about to be completely gone.

As he was finishing up his coffee, Colonello noticed Reborn. He smirked as he jumped at Reborn, and they proceeded to fight.

"You will never learn will you Colonello?" Verde asked in an annoyed voice. After Reborn and Colonello fighting, Reborn emerging victorious, Tsuna sighed in irritation and finished off his Cappuccino and started on his Strawberry shortcake.

"Could you guys not fight in here?" Tsuna asked, seething in irritation. Verde raised an eyebrow at him, wondering why he was so calm about this. "Well, who is the pipsqueak beside you Reborn?" Colonello asked Reborn only after he noticed Tsuna.

Tsuna twitched in annoyance and a dark aura started to seethe out of Tsuna when he heard the word pipsqueak reference towards him. Verde shivered and was suppressing the urge to run away to the other end of the earth, because of his experience with that aura.

"Who you calling pipsqueak, you smaller-than-an-insect-to-the-human-eye-bug-trash?" Tsuna asked with venom dripping from his tone of voice. Reborn let out a whistle of impression, while Colonello was twitching at every word that was leaving Tsuna's mouth.

"Who are you calling a smaller-than-an-insect-to-the-human-eye-bug-trash?!" Colonello asked with irk marks all over his face. "Oh yeah, that's right. That is only insulting to those bugs and insects and trash. You are worse than all of them combined. So go on and run along, and don't ever call me pipsqueak again!" Tsuna said with a dark glare, that Verde was very glad that he wasn't on the receiving end of this time around.

"Moving on now. Do I have to deal with the both of you guys next? And Verde, is it true that if we are a certain distance apart and for a certain amount of time, that you or me will die?" Tsuna asked in a now calm voice.

Before Verde could answer, Reborn answered for him. "Yes it is true that either of us will die, and now for your other question, you will be dealing with someone else other than the guy who called you pipsqueak. By the way, his name is Colonello, and I gotta say, those were some fine words and lines that you had said to him." Reborn said with a bit of praise at the end of what he was saying.

Colonello and Verde stare in shock at Reborn.

"What?!" Reborn asked, pinning the two of them with a glare of his own.

"Nothing." The two answered immediately.

'Is the world ending? Reborn just gave someone praise…' Colonello and Verde thought at the same time.

In the meantime, Tsuna continued to eat his strawberry shortcake and was staring out the window and looking at the sky. 'If all of the arcobalenos will be this troublesome or pains in the asses, then I don't really wanna call them, but in the end I will.' Tsuna thought to himself as he finished up his strawberry shortcake and ordered another strawberry shortcake. "So other than trying to find out who or what caught your attention, why are you here?" Tsuna asked Reborn with a curious sparkle in his eyes.

Reborn only huffed in annoyance.

To Be Continued…

Written: 8/12/17 (month/date/year) – 7:09 pm, Saturday

Edited Written: 10/3/17-2/25/18 - 8:47pm-2:19, Sunday

Word Count: 2,549 words.

Next Chapter: Interlude I: Verde

"I trust you to keep this between us."