Ever since I watched Ansatsu Kyoushitsu, this idea has been stuck in my mind for a while. But since this is my first story on this website, I'm not expecting many reviews or anything of the like 'cause I'm a newb XP. I only read fanfiction up until this point, but seeing one crossover with this premise which was titled Assassination Shinobi by PainX65 inspired me to finally write one. So please enjoy! ^-^

Critiques and comments will be appreciated.

Also cover art isn't mine. It belongs to Yakushi-Kabuto on Deviantart, you guys should check his work, they're pretty good! :)

URL cause I can't paste it on my profile for some reason XP: art/Assasination-Ninja-532329773

Disclaimer: I do not own Naruto or Ansatsu Kyoushitsu. If I did, I wouldn't be here writing fanfics but be making sequels and spin-offs to the manga. XP


Uniqueness was often something to be embraced wholeheartedly, sometimes even be admired. It made you who you were and defined you as a person through your words and actions.

What the class of aspiring shinobi-to-be of Konohagakure no Sato saw standing in front of their classroom was definitely unique. And completely, scientifically, logically and realistically impossible.

"Hello everyone, I was the one who destroyed Sora no Kuni," the creature in-front of the grinned, its small beady eyes giving them a sharp glance from where it stood tall and yellow behind the teacher's desk. "I plan to do the same to the Earth in a few years."

"But until then, I will be your teacher. I hope we can work well together." The creature's smile seemed to reach all the way until its eyes.

The class's eyes widened in unison. They knew of Sora no Kuni from their history lessons, its Hidden Village had been destroyed by Konoha during the Second Great Shinobi War as a a counter to its challenge to the Shinobi Godaikoku. The village itself had been left in ashes in Konoha's wake, but the country itself survived the aftermath... at least until most recently. The news had spread like wildfire throughout the Elemental Nations. Sora no Kuni; an already ruined nation reduced to ruble and nothing but 1.22 million miles of a giant crater had been left of it.

They had heard from their parents that through the rumor-mill, that only one single person was responsible for the unprecedented damage done to one entire nation and wiped it off the map indefinitely, left in the shape of a crescent moon.

The class sweat dropped in unison. What stood in-front of them looked nothing like what they had pictured a powerful super being would look like. Not even close by a long-shot.

It strangely held the appearance of a yellow bi-pedal octopus with four tentacles for arms, two of which had the strange appearance as if he had two long fingers on them. He stood at a tall 9.8'' with a large bulbous head with an absurdly large smile and small, beady eyes. He wore a black academic dress with a small black square academic cap with a yellow tassel hanging from the front, and a large black tie with a yellow crescent moon stitched onto it.

"Alright look..." the class looked toward the adult in the room, a Chunin by the looks of it, who smiled at them. "My name is Umino Iruka and let me get straight to the point."

"All of you in this classroom have been tasked by Hokage-sama with this emergency S-ranked mission." The scar-nosed Chunin then suddenly pinched the bridge of his nose. He then shot them all a serious gaze. "Let me be blunt: We want you to kill this creature."

The class went silent. And then exploded.

"NANI?!"

A student shot up from her seat. "How do you expect us to kill that bakemono?! We're just Academy Students!"

The creature gained a tick mark. "How rude! I'm right here you know?!"

"Asami-san, Bakemono-san; no need to point out the obvious. We're not blind you know. Maybe you both should get your eyes checked," A male student interrupted/drawled. A couple of students snickered.

"HEY!"

Iruka coughed into his fist to gain everyone's attention back. Everyone looked at him.

"Anyway..." he continued. "I'm afraid most of the details about this mission have been classified as an S-ranked secret and I'm not privy to them. However, according to Hokage-sama, he's telling the truth and he won't stop with just Sora no Kuni. He will destroy the Earth."

Multiple students simultaneously gulped.

"Only Hokage-sama and a select few are in the know; including the other Kage. There would be mass panic if word got out about someone existing with the power to bring down entire nations." The Chunin elaborated. "That is why you have been tasked to kill him."

'Eh...?'

A student raised his hand. "Ano, Iruka-san... wouldn't it be better if every shinobi were to know about him? Everyone would be out to kill him then; and he wouldn't be able to evade them forever."

"Nurufufu..." the creature laughed. "They tried. They sent 30 shinobi each from their ANBU squads and Elite Jonin. None of them even scratched me."

'NANI?!'

Iruka sighed again. "This thing has the ability to go past the speed of sound-"

"Mach 20, to be precise Iruka-san." the bipedal octopus jovially interrupted. "That is approximately 24.8 kilometers per hour, faster than your average shinobi can track and move."

The scar-nosed chunin's temple throbbed. "-according to the reports. And he can...fly..."

'...' The entire class's minds came to an abrupt halt. And then exploded.

'How on Earth are we suppose to kill that thing?!'

"He's also immune to our more traditional weapons like shuriken and kunai." The Chunin informed them. "Even Jutsu have no effect on him..."

That raised a question in many of their minds.

"Iruka-san, how are you able to confirm all this if he evaded all our attacks?" A student asked the unvoiced question.

"He didn't." Was the blank response they received.

"Eh?"

"He stood still the entire time they attacked him..."

The class became abruptly silent.

"NANI?!"

"Nurufufu..." the super-octopus laughed, green lines appearing on his face. "I even gave their weapons maintenance checks during the fight."

Again, the class was silent.

"NANI?!"

Iruka pinched the bridge of his scar-marked nose. 'This is getting annoying...'

"In short, if he wanted to get away from us, we wouldn't be able to do a thing to stop him." It was true. While Jutsu were very versatile and deadly, one thing that many jutsu shared as a weakness was their inevitably short range capacity. And they had seen this thing fly all the way up the stratosphere...

"Nurufufu..." The octopus laughed again. "But where would the fun in that be? So I made your village an offer. They will stop attempts on my life, and in return, I will teach here at the Academy."

Multiple sweat-drops formed on the student's head. Even Iruka seemed to have developed a tick mark.

'What...?Why...?/Did we get the short end of the stick...?' was the common thought that ran amuck the minds of multiple individuals in the room, complete with a baseball bat and guns blazing.

"We don't know what he's after..." Iruka breathed out, obviously quickly growing impatient every second. "But we really had no choice but to agree, on the condition that he doesn't harm any of you kids. We have two reasons for this: First and foremost, if he comes here everyday to teach, it will become easier to keep track of him. And secondly... it will give some thirty individuals a chance to kill him from extremely close range."

"Why are you making that thing our teacher?!"

"Why are you making us do your work? We're not even out of the Academy yet!"

The cries of protest grew louder and louder, and were suddenly silenced as Iruka finally blew his top.

"Because it's your job and responsibility to follow the Hokage's commands as shinobi-in-training!" Iruka shouted, his temper finally worn thin. His head enlarged to dramatic proportions, face as red as a tomato. "We could be putting these shinobi who serve as your teachers out on duty and missions right now, if they weren't ordered to teach you! Well, it's time to grow up and do your part as a Konoha shinobi!"

Iruke inhaled and exhaled to calm himself before he went any further, his head shrinking back to its regular size and color.

"Furthermore, the student who successfully manages to kill him will be awarded seventeen-billion ryo."

'Nani?!' the class's minds once again came to a screeching halt.

"It's only fair," Iruka shrugged. "If you can kill him, you will have literally saved the Earth. Fortunately, he doesn't seem to think much of you."

'How is that fortunate...?' was the bleak thought in their minds.

The Chunin motioned at the bipedal octopus. "See? Those green stripes on his face means he's looking down on you."

True to his words, their soon-to-be teacher did have three green stripes going horizontally across his smiling visage.

'Just what kind of skin is that?!' The class internally screamed.

"Nurufufu..." the yellow octopus laughed again. "Of course I am. If the elite forces of nearly every village couldn't kill me, then how could you?"

His smile seemed to get bigger. "They even hired a few S-ranked missing-nin to off me. All they got was a good make-over mid-fight!"

'What's up with the cleanliness...?'

Iruka coughed to gain their attention again. "While he's busy looking down on you, your job is to find a hole in his defenses and strike from there. We'll provide you with weapons that won't hurt you, but will hurt him."

At that point, two shinobi came in, wheeling a trolley filled with what looked like green kunai and shuriken. The two unnamed shinobi, took some from the trolley and handed them out to the students.

One student poked the tip and his eyes widened. He pulled down on the green blade, and it bent like rubber.

"H-Hey!" he stood up, clearly irritated. "You really expect us to kill him with weapons like these?!" To emphasis his point, he bent the rubber blade once more.

"Yeah," another student droned out. He threw one of the shuriken at the wall and the weapon merely bounced off the wall, not even leaving a scratch upon the wood. "How are these suppose to harm him? They're practically toys. You sure you guys are alright in the head?"

Iruka sighed out in obvious irritation and mental exhaustion. "They might not seem like much, but they do work."

Another student raised her hand. "Did Konoha make these weapons?" she asked.

"No," Iruka replied. "These were given to us by Oto no Kuni,"

Despite all the questions that were raised in their minds by the statement, the students reluctantly nodded, and pocketed the weapons in their weapon pouches.

The chunin then gave them a serious look. "I suppose that the specifics of this being an S-ranked secret do not need to elaborated on?" Taking in their nods, he continued.

"There's no time to lose." Iruka lingered. "Well, that's about the gist of it. I hope you'll make the most of your last few remaining years."

The chunin then smiled at them. "Good luck!"

The students merely gave deadpanned looks at the chunin. The scar-nosed chunin at least had the the decency to look sheepish.

The octopus suddenly rubbed his hands- tentacles? together, as if giddy with anticipation. "Well then, as teacher of Class A. I proclaim that from today onward; class is in session!"


'A creature that the Anbu of each village and even S-ranked nin couldn't kill... Yes. He will prove as a good test on how strong I've grown. It will prove that I am finally ready to kill him!'

'Alright! With that much money, I could buy a lifetime's supply of ramen! Tako-sensei, get ready cause Uzumaki Naruto is coming for you, dattebayo!'


Hope you enjoyed. Please review! ^^