I don't own Ansatsu Kyoshitsu or Katekyo Hitman Reborn

Author's note:

Sorry for the late update, but I'm really busy here.

I would not be able to update for a while, so instead I will give you a special chapter

Verde:

This is an event taken place just slightly before the story started, a week after Koro-sensei death…

Located in a lightly wooded area in Italy, a single luxurious western styled mansion stand tall. Around it spread a field of flower, and many bird and animal are running around here. At the first glance no one would have suspected that this place is exactly Vongola Headquarters. This is the official residence of the Vongola Bosses and their Guardians. As such, it is the center of operations of the Vongola Family.

And deep down of this mansion there is a single special room that are only built a few years ago, under order of Vongola Decimo(Tsuna). The room are a certain lab made for a single mad scientist that are currently affiliated with Vongola his name is Verde.

Verde the former Arcobaleno of Green Pacifier, and also known as modern day Davinci, he is the world best scientist that are very famous around the underworld. Three years ago after his curse released Verde decided to affiliate with Vongola, and help the new young boss Sawada Tsunayoshi. Just to note, Verde had not felt grateful for Tsuna help at all, the only reason he help out here is only because by working under Vongola he can advance his research further. Even after a few years pass his personality had not gone any better at all. The only thing that chance are that he seems to have grew taller and looked to be around 5 years old.

And now inside that very lab Verde are busy programming his new invention. At this time suddenly…

"Verde-san, I've finished my work." Said a certain blonde young man

Appearing suddenly from behind Verde is a young man is his teen with blonde hair and blue eye, with height of around 170cm

His name is Spanner, in the world 10 year into the future he is a member Millifiore Black Spell ho work as mechanic, and he is also the one who help out Tsuna to perfected X-Burner. For some reason immediately after Verde joined Vongola, Spanner got dragged by Verde to help him out with his research. Apparently Verde interested in Spanner talent and want the boy to help him. Spanner himself also seems to how interest in Verde work and so for the past three years these two have been working together making many thing.

By the way Souichi also got invited by Verde at first, but the boy refused as he plan to graduate from school first. Of course Verde ignored Souichi words at first, but then Verde realize that if he force the boy work will only be half assed. So let Souichi go, and settle with Spanner only.

"Good job, with this we should be finish the new invention tonight." Verde said to Spanner

"…Yeah, after this I think we should take some res—… Ah, by the way Verde-san, do you know that Koro-sensei died last week?" Sapnner asked Verde

"Hmm? I see, so that guy finally died, oh well... I've got all the sample I can from him anyway. Whether he die or not is none of my business." Verde said coldly

"You sure are cold, then again from the beginning you had only see him as research subject anyway."

Verde had known Koro-sensei, heck he knew the man when he is still human. In fact Verde is one of his client in the past, but even then for him Koro-sensei is nothing more than research subject.

He had no interest in the man whatsoever, Verde only interested in the tentacle and that's it. And now that he gather all the sample necessary he had no use for Koro-sensei From Verde perspective he can go die for all he care.

"Well I do admit he himself is quite an interesting man, being God of Death he is no doubt interesting. But if you compare him with the rest of my collegeaus he is a pretty plain guy." Verde said

"Comparing him to cheat like existence called Arcobaleno in itself is wrong though. People who can fought you guys in this planet are really the minority after all." Spanner commented

"Doesn't matter right? Anyway rather than him, I have more interest in his so called student. What is that naïve Decimo plan to do with them? Will he make them join Vongola?" Verde said

Not having interest with Koro-sensei, Verde changed the subject to the member of Class 3-E.

"…I doubt that, Vongola is really softie when come to this kind of matter. This part had not chaged even after several year, there is no way he will let them join our side. Letting them join us will only put them in more danger after all." Spanner said

"Hah! Even if those kid doesn't join us they are already in deep shit by the time they are involved with that octopus. That Vongola should just make them join us instead, at least that way no small fry will be dare to attack them. I wonder if that boy can't even think that." Verde pointed

"I think Vongola also realized that point, but he still don't want them to be involved with us more than necessary. It seems he want them to have a normal live." Spanner stated

Knowing Tsuna mind he definitely realized Verde point, but at the same time Spanner also know that Tsuna is too naïve. There is no way Tsuna drag the member of lass 3-E to this side, well if there is some situation that forced Tsuna to do that, the story will change though.

"Hnn… as usual that brat is naïve. Still. Is it really alright to leave them alone?" Verde ask

"Huh? What is this? Verde-san don't tell me you actually worry about those guys?" Spanner sai in surprise

"Is it bad?" Vere ask

"Frankly speaking knowing your personality in this past 2 years, I've never seen you care about human being. In the first place you're a man that will kill a human if it really necessary for your research." Spanner said

In this past 2 years Spanner had not seen Verde killing anyone.

But! Verde are undoubtedly mad scientist who never care about human life, the thing called moral doesn't exist inside Verde. The only thing exist is Verde urge for knowledge. Although after the 'Representative Battle' Verde personality change a little, in the end at the core he is still mad man.

For that Verde to care for such random brat he never met himself is just impossible.

"Hmm… that's true being honest I never really care about people." Verde said not bothering to deny Spanner words

"Then what make you interested in them?" Spanner ask

"It is not like I have interest in those brat themselves, it just that one of that student had caught my interest for sometimes." Verde said as he begin to emit an evil smile

The face are so evil that even though Verde look no older than 6 years old his face would make even an adult felt fear. However, used to this Spanner show no sign of surprise at all.

"Interesting? Ah, that one huh." Sai Spanner as he realize who Verde talk about

"Yeah, that one! I plan to drag that 'thing' here even if it's refused my call!" Verde said

"Vongola will be angry though? Worse come to worse he will burn you alive. Even you try to fight back with 'Green Mosca' I don't think you stand a chance against him." Spanner said

What Verde plan is to drag one of Koro-sensei student to this sides.

If Tsuna found out about this, Verde might be burned alive, even if Verde plan to fight back with Green Mosca, Tsuna will destroy them within a second.

"Who is going to fight that monster brat? I have my plan to make him agree with me dragging that thing here." Verde said

"Is that so? What is it—"

"Ah, that—"

After that the thing Spanner heard from Verde is just too crazy, but at the same time piqued his interest. And so the two mad scientist of Vongola cooperate to get their hand of one of the member of Class 3-E.