▄︻̷̿┻̿═━一 • • • • • • • • • •

And so, the school bell rings. As another day begins for another day of class, and another day to try and assassinate their teacher. But that is to be postponed for now. Even if they have a mission to do they are still students and need education. And mostly midterms are nearing and they need to study well. And here they are now, staring at their humanoid like yellow octopus teacher.

"Now, then, class..." He began as multiple Koro-senseis appeared right in front of them with each different headband. “Shall we begin?”

"Begin what?" The class asked with a puzzled expression.

"—Midterms time has rolled around." He announced.

"Yes, that's right." A copy of Koro-senei said.

"And that's why this period..."

"Will spent high-speed enhance test studying!"

Everyone let out a suprise gasp when a Koro-sensei appeared in front of each of them, each held different books in their tentacles to teach them.

"My doubles can work with you one-on-one to drill you on each of your worst subjects." The Koro-senseis said.

"Ridiculous." Terasaka murmured. "He even switch headbands for each subjects." Suddenly a Koro-sensei appeared right in front of him making the male gawked at him when he saw the headband he was wearing. "Hey! Why do I get a Naruto headband?!"

'I think Koro-sensei is getting faster and faster.'

'Six Japanese, eight math, three social studies, four science, four English, and one Naruto.'

'Splitting up for each student like that?'

'It wasn't long ago that he could only handle four or five doubles.'

All of a sudden the right side of Koro-sensei's face was squished in, forming somehow like a 'C' or for Hanako, a macaroni. The cause of this was the boy beside her. Karma. Who held the anti-sensei knife, while looking away with his tongue sticking out.

"No sneak assassinations now, Karma-kun! Dodging will disrupt my persistence of vision!"

"These doubles are so fine and delicate." Nagisa mumbled, after examining the Koro-sensei in his sight, before he asked. "But do you have any strength left after making them?"

"Not to worry." Koro-sensei assured. "I have a double resting outside." He said, as Nagisa turned his head to see a double of their teacher lounging at the other side.

"How is that helping?!"

'This power-up acceleration...'

'He must be gearing up to destroy the earth a year from now.'

'No matter how you slice it, he's one tricky target for us killers.'

"So, do understand so far, Nagisa-kun?"

"Hai." He looked up with a smile.

'If you're facing exams...'

'He's a good teacher to have.'

The school day has ended and the were leaving the campus and with their friends while they chat.

All while in the staff room, Karasuma-sensei and Bitch-sensei stood beside each other and both stared at the man sitted in front of them.

"I want to line up the colors of this cube —all of them, and quickly, with a method anyone could use." He said, as he try to solves rubik's cube. "How would you go about it," He paused for a moment. "Teachers?"

"The answer is simple." He said, as a screw driver between the object, trying to pry of the cubes. Just as Koro-sensei came, the rubik's cube broke into pieces.

"Take them apart and put them back together again. Very logical."

The principal of Kunugigaoka Academy said. Asano Gakuhou.

The principal hummed when he notice Koro-sensei had came, then gave a smile.

"We meet at last, Koro-sensei."

"He says he's the principal of this place." Bitch-sensei informed him.

"As teachers, he's our boss." Karasuma-sensei added. With the sudden information that Koro-sensei got that he was their boss, he let a out yelp with glee as he attended principal Asano.

"My, my — you've come all this way," He said, just as Nagisa and Hanako walked pass the room but then stop when they heard Koro-sensei. "Say, might I receive a little bump in my salary? I've added a few more doubles ,you see."

At his sudden words, the two students who were watching from the outside sweatdropped.

Koro-sensei's Weak Point #6:

Subservient to higher-ups.

"And I'm sure it's in your power to—"

"I must apologize." The principal politely interuppts him with a smile on his face. "I'd meant to pay my respects." He then stood up from sit While Nagisa and Hanako hid behind door and eavesdropping without getting caught. "The Ministry of Defense and Karasuma-san have told me all about you. I can't claim to understand everything, but..."

"How very sad you are. Looking to become the savour of the world, only to fall into the role of the great villain who would destroy it." The principal taunted.

'Savior?' Hanako frowned.

'Villain?' Nagisa blinks.

The both shared a glance at one another, confuse at their principal's sudden claim.

"But let set that aside now." Principal Asano changed the topic. His eyes close, head slightly down. "Struggles as I might, I cannot hope to save the planet from its crisis. Baring the unexpected, I'll stay out of your assassination altogether." He walked away from Koro-sensei, stopping beside Karasuma-sensei as he whispered to him. "You've certainly paid me enough."

"That will be helpful." Karasuma-sensei responded.

"Well, aren't you rational! I do like rational man." Bitch-sensei stared at Gakuhou.

"I'm honored." He said placing a hand over his heart adding a small bow. "However...." He walked away from them and pass Koro-sensei, making his was towards the window and sat on the ledge. "As principal, I must consider what's in store next year and beyond, should the earth survive."

"In other words, if someone does happen to kill you, what is this school's future?"

"Frankly, we need the E Class to remain as it is."

Nagisa suppressed his gasp from behind the door and Hanako glared at the man that they call principal.

"As it is?" Koro-sensei questioned his statement. "You mean, like rock-bottom grades and treatment, like now?"

"Yes. Are you familiar with the worker ant principle?" The principal queried.
"In any group, 20 percent are lazy, 20 percent will work hard, and the remaining 60 will be average." He lectured.

"My goal is a group with 5 percent slackers and 95 percent hard workers." He told the teachers.

" 'I don't want to be like the E Class'."

" 'I don't want to be in the E Class'."

"With 95 percent of students thus determined, my ideal ration is attainable."

"I see. How logical." Koro-sensei spoke, after hearing the principal's plan. "Then the 5 percent in the E Class must be kept and pitiful."

"I received a complaint from the D class teacher today:" Principal Gakuhou brought up. " 'Two students from E Class glared at one of my students and threatened to kill him'."

From outside, both Nagisa and Hanako plastered an unimpressed looks and sweatdrops by the false information that came from the Principal.

Hanako's eyebrow twitch slightly annoyed, mentally cursing the two students from earlier and their teacher. 'Wow, the audacity.'

Principal Gakuhou continued to speak. "I'm sure the glare is part and parcel of the whole assassination thing. And that's fine." He paused for a moment. "The problem lies in a student with rock-bottom grades defying a regular one. Under my policies, that cannot stand."

The man then stood straight and walk passed Koro-sensei while he continued to speak. "Please tell him no uncertain terms to control him."

"Oh, and— Koro-sensei?" He called, his back facing him.

"You have one second to solve this." He quickly turned around tossing an object at Koro-sensei, which caught of guard for a second at the Principal's sudden surprise attack.

"What? Just like that?!" The octopus panicked, using Mach 20 to solve the puzzle.

—One second later—

Koro-sensei was on the floor, cheeks pink, and sweat, struggling to solve the puzzle, but only to fail.

'What the hell is this?!' Nagisa screamed mentally.

'I have no words to comment about this sight.' Hanako sweatdrops.

Koro-sensei's Weak Point #7:

Metal ring puzzles freak him out

"Your amazing speed lives up the hype." He amusingly watched the yellow teacher struggling to solve the ring puzzle, as he kept rolling on the floor. "No doubt you can dodge any attempt in your life."

"But you know, Koro-sensei..." He stood in front of him, who miserably gave up. "There are some problems speed can't be solve."

The staff room was silent and the clinking of the Principal's footsteps was the only thing that was heard as he walked towards the door, excusing himself. "Now, if you'll excuse me."

Nagisa and Hanako quite moved away from the door, they stood opposite from each other, as if they were just about to walk by, and it was just in time when the door opened and Principal Gakuhou walked out, but of course, he noticed the bluenette boy, he then gave Nagisa a 'soft' smile.

"Hey there! Looking forward to see your midterm results! Good luck."

After saying his words, the smile fell and he held a neutral face, walking away from the two students, who stared at his retreating form. Hanako can feel the dark aura radiating from him, and she doesn't like it one bit. Nagisa felt deflated, despair by the tone of his voice, he had a hand over his chest.

With that dry "Good luck", I went from assassin back to the End Class, just like that.

The female beside him sighed when she had taken noticed of Nagisa's sudden distraught face. She took his wrist with her hand as she pulled her best friend Aeay from the door and stated walking to the exit. "Come on."

'As a target, this guy is practically invincible.' Karasuma-sensei thought, both him and Bitch-sensei stared at the defeated Koro-sensei. ' His assassination is entirely within our control. But as teachers, there's someone more powerful pulling the strings: The principal of Kunugigaoka Academy, Asano Gakuhou.'

"A shrewd manager, in its first ten years, made this school one of the nation's best." Karasuma-sensei read, holding a book in his hand. "There's no escaping the structure he's built here. Not even for you."

The P.E. teacher looked back at the humanoid octopus, the latter stayed quiet and unmoving, the two tentacles that got caught from the ring puzzle broke free. The sound of metal breaking was the only this filled the silent room.

|The Next Day|

"Good morning, class." He greeted the students. "Today, I've tried making even more of me!" Koro-sensei said, as even more copies of himself filled the room than yesterday.

'That's too many!' Nagisa sweats.

'Principal Asano's word must have struck a cord.' Hanako mentally said, watching the effects of this action.

"Now, let's begin!" He announced.

"Even the afterimage are getting sloppy."

"So sloppy, it's like he's turning into someone else."

"What's wrong, Koro-sensei?" Kayano nervously asked their teacher. "Isn't this a little too gung ho?"

"Hm? Not at all!" The giant octopus assured her.

Nagisa stared down on his desk, wearing a worried expression as he remembered the words of the Principal yesterday.

" 'We need the E Class to remain as it is'."

•

•

•

The bell rang and the period ended with Koro-sensei all beat up and tired from the teaching and the use of to many copies of himself, mostly the latter. Now he was leaning back on the the teacher's desk, fanning himself with a paper fan while catching his breathe.

"You know, he does look pretty beat." Maehara stated, half of the class stared at their exhausted teacher.

"Maybe now's our chance!" Nakamura piped, holding her anti-sensei knife.

"Why's he teaching this hard, anyway?" Asked Okajima.

"Nyuruhuhuhuhu. All to get your test scores up!" Koro-sensei tiredly chuckled.

"If that happen..."

⌐╦╦═─ • • • • •

"Koro-sensei!"

The gentle laughs of his students filled the air, as they run towards their octopus teacher with their test papers.

"I got a good score— thanks to you!"

The students gazed at him, showing their respect for their teacher.

"I can't live without your classes, Koro-sensei!"

"I could never kill you!"

Turning to his left, college girl students, who heard that he's a 'great teacher', were in front of him with 'Logical-big chest' holding notebooks in there hands.

"Sensei, help us study too!"

⌐╦╦═─ • • • • •

"... And with no fear of being killed, I'll be rolling in good fortune!" He dramatically said, as he can't stop he's fantasies all turning pink, blushing from just the thought of it.

"Uh, the whole study part is fine and all..." Mimura trailed off.

"His imagination is very... questionable." The young Miyazaki cringed.

"Yeah, but if we assassinate him, we get ten billion yen." Yada reminded.

Nakamura then joined the conversation, bring both of her arms behind her head. "And with ten billion, you don't need good grades to live a good life!"

"Nyuah!! I-is that what you think?!" Koro-sensei cried, hearing the blonde girl's claim.

"We're the End Class, Koro-sensei." Okajima uttered.

"Assassination is way more accessible to us than any exam." Mimura added.

Hearing all of this coming from his students, he lowered his head and said. "Ah, I see how it is."

The students stared confusedly at him.

"How what is?" Mimura questioned.

"You still don't have what it takes to be assassins." He taunted, face purple.
"Out into the schoolyard, all of you!"

Behind the old campus, the students all stood outside and wore either a confused or concerned expression, some even muttered quietly to each other, watching Koro-sensei, who stood in the middle of the cranny field.

"What's the big idea, sendin' us all out into the yard like this?"

"Who knows? A bad mood came all over him sudden."

"One good about the E Class system is its built-in remedial process." He began to speak. "By scoring in the top 50 of 186 on periodic exams and receiving permission from their former teacher to return, they can leave this outcast E Class."

"However, it's too difficult to meet this conditions given their poor grades in this inferior academic environment." Koro-sensei elaborated to the students. "Most E Class students, being made to feel remediation is far out of reach, face intense discrimination." The students watch their teacher push a small table like object across the yard, just as Kataoka brought Bitch-sensei outside.

"What do you mean, hurry up?" Bitch-sensei questioned, annoyed that she was called outside.

"Koro-sensei asked us to bring you." Kataoka answered her, making her way down tge stairs where the rest of the class is.

"Irina-sensei," The octopus took her attention. "Let me ask you something as a professional assassin."

"What is all this?" She questioned, not quite getting the point of this situation that is happening right now.

"When you're on a job, do you have one single planed prepared?"

"No..." Bitch-sensei answered seriously. As she elucidate her experience to this. "It's not often that my main plan goes as expected. Making more detailed back up plans in preparation for any contigecies is Assassination 101."

"And you, Karasuma-sensei," He then turned to the dark haired man, he quietly hummed and looked at Koro-sensei. "When you teach knife skills, is the first strike the only important one?"

"The first strike is of course the most important, but your next moves matters, too." Karasuma-sensei responded. "Against a powerful foe, your first is likely to be dodged, so the precision with which you can land your second and third blows can decide the fight."

The students stared at their teacher, quietly letting out a confuse gasp as they still don't get the whole picture of this situation.

"Look, what are you getting at?" Maehara asked him, as Koro-sensei stood in the middle of the field then all of a sudden the yellow octopus started spinning, continuing his lecture to them.

"As you're teachers have said, having a trusty second step is what makes for a confident assassin. But what about you?"

" 'We've got assassination, and that's enough'." He quoted his students' words. "You think, and down go your academic goals." As he spun around much more faster. "You're just not trying to face the reason for your inferiority conplex."

Wind and dust, that was made by Koro-sensei, flew past the students, making them yelp, as they cover their eyes or face with their arms

"What if I got away from this classroom?"

"If another killer manage to do me in?"

"Without the assassination you rely on, all your left with is good ol' E Class inferiority."

"A word of advice from me to you, as you walk that line:" With the continuation of him spinning around in Mach 20 speed, Koro-sensei had created a tornado. "Those who can't weild a second blade aren't qualified to be an assassin!"

The gust of wind grew stronger than before, and with the tornado that appeared the students took a step back, trying to get a safe distance away from it.

The appearance of the tornado had alerted some main campus students who saw the tornado in the mountain.

Finally after that, the wind stopped and the tornado was gone and the sun was showing, shining under them.

"The yard was very uneven and full of weeds. I tidied it up." When the cloud of dust disappeared, the class gasped in surprise when they saw the field had turned into a track. "I am a super-creature capable of wiping out the earth. Flattening out this area here is a peice of cake." He said, staring at them with red bitty eyes. "If you can't show me that trusty second blade, I'll know there's no assassination in this classroom worth taking me on, and I'll flatten this entire campus before I go."

"A second blade? When?" Spoke Nagisa.

"Tomorrow, of course." He's expectation made everyone gasped at their given deadline. "I want all of you in the top 50 after tomorrow's midterms."

"Eh?!"

"I've already been developing your your second blades. I don't use the doltish teaching methods they do at the main campus." He explained then pointed at them and cheered. "Wield those blades with all confidence!"

"Succeed your mission and hold high, smiling, unashamed. You are proud assassins— and proud members of the E Class!" Koro-sensei motivated them.

Then...

... It was midterm time.

•

•

•

It was dead silence in the room, only the scribbling of pens and the tapping of finger on the table from the main campus teacher, who was watching over them and with a grin, the only noises were heard.

'All students took these exams at the main campus, which means it was only an away game for us E Class students.'

The students all jumped back from their desk with panic and yelp in horror when the monster within their test attacked them, now everyone was running away, dodging its attacks, as they try to think of a way to defeat the questions.

"One knife isn't enough to kill it! What's with this question 4?!" Sugino panicked as he held his blade.

"How can an exam turn into a battle to the death?" Hanako mumbled, confuse of their surroundings.

The creature stroked again making all of them run to escape its attack, separating some of them from each other.

'I was well aware...'

'.....that our school exams are the pits.'

Nagisa stared at his test paper, he was confused. It was quite hard, he can't find the right answers and it's making him anxious.

'Oh no...'

'I don't know where to begin!"

'If this keeps up, this questions...'

The monster then appeared in front of Nagisa, roaring at him.

'....will do me in!"

Back at the mountain, Koro-sensei stood in the clearing near the equipment shed staring at the sky. It was very peaceful, the peacefulness was very comfortable that even a butterfly sat on his academic cap. But, of course it was fun while it last, when a knife was easily was thrown to him, and was easily dodge by Mach 20.

"Seriously?" Bitch-sensei said, who was the one threw the knife. "You'll really leave if they don't all make it the top fifty?"

"Yes." He simply responded.

"No way in hell! They've had the worst grades until just recently!" Bitch-sensei yelled at him.

"I wonder. I don't know about the past, but they're my students now." Koro-sensei claim, picking the blade that the blonde lady threw to him with a piece of paper. "When your in a tight spot, protect yourself. That's the weapon I gave them."

Nagisa quietly gasped when he saw a familiar tentacle held his wrist, where his blade is, as the voice of their teacher filled the void battle field. "I'm sure I taught you this. That's no mystery monster."

"Start by observing that fin carefully."

"See? On closer inspection, it's just a fin."

"Look carefully at each part of the question one by one, then string them all together to see the whole:"

"See? What a trivial adversary!"

Nagisa smile, as he have finally found the solution to this.

"Now use your blade to cook it up."

'I get it!'

The teacher up front watch with surprise and shock when the E Class students answered the questions with a breeze.

'The trick to working out the important parts of the question— it's all just like Koro-sensei taught us!'

The teacher was gawking at them, panicking even, seeing them easily answering their test without a struggle. Thanks to Koro-sensei they can win and finally....

'This question...'

Defeat the monsters.

'....is dead meat!'

'And the next one!'

'And the one after that!'

'And—'

The next moment everything went quickly down hill, the students of E class were suddenly knocked out, and the only ones who are left standing are Nagisa, Karma, and Hanako. As the three were now facing a powerful monster that they have never expected to appear.

That creature, was the reason they lost the final fight.

Hanako and Karma stood together side by side, with Nagisa just beside them, staring at the enemy up ahead. The two teenagers glance at each other having a conversation with use of their eyes before nodding.

Stepping back a bit the two took a stance before they sprinted towards the enemy, knife held tightly in their hands, ready to strike.

'And then an unseen question beat us to death from behind.'

•

•

•

"What is the meaning of this?" Karasuma-sensei asked to the person from the other line. The annoyance may not be present on his face but the irritation and annoyance can be heard in his tone. "I felt the test was markedly lacking in fairness."

The man from the other line spoke full of sarcasm and bullshits in his tone. "That's strange. You should have been notified. Maybe some kind of communication slip-up on your end?"

"I mean, you're not coming to the main campus either anyway."

"I can't say there was— and regardless, this is highly unusual. Two days before the exams, and broaden the scope all of the subjects?" Karasuma-sensei spoke. With Koro-sensei and Bitch-sensei quietly listening to the phone call.

"You don't seem to understand, uh, Karasuma-sensei." The man taunts him. "We are a prep school. Testing students on last-minute cramming is part of our policies."

"Why, the main campus students had the principal himself take the stage and gives splendid lecture about the changes." Karasuma-sensei's harden at the man's praised.

'Is there nothing that man won't do in the name of his own doctrine?'

He removed his phone from his ear ending the call, before slightly tilting his head staring at the of Koro-sensei, who's facing the wall.

'They've put us in a fine spot.'

'If he leaves E Class, we lose everything.'

When Koro-sensei had entered the classroom he had quickly faced the board in shame, some students had their head down, gazing at their test results, others stared at their teacher. The room was silence, not one word uttered from any of them. Until Koro-sensei finally voice out.

"I take all responsibility." The guilt and shame were there, he's voice wasn't the usual energetic one. He was ashamed, he failed his students. "I seem to have underestimate the system at this school. I can't bear to face you."

Koro-sensei barely dodged the knife that came flying to him.

"You sure?" Karma spoke, walking towards their octopus teacher with a smug expression as he continued to speak. "If you can't face us, you can't see us coming to kill you."

"Karma-kun! I'm very depressed right now, and—" Koro-sensei stop mid-scolding him, seeing Karma's test results, who placed them on the desk.

"Nyu?!"

"Changing the question didn't matter to me." Karma spoke a bit more softer.

Everyone gasped when they saw his results of the exams. His scores are more than 90 precent.

'Huh, I'm just a few points away from him.' The thought, studying his paper, as she muttered to herself. "Hm, impressive."

"Whoa!"

"100 in math, no way!"

"With my grades, you taught more that you had to." He continued. "So I could handle the questions even if they change their scope."

"Still..."

"I won't be leaving" Karma declared. "Assassination is way more fun than going back to my old class."

"Neither will I." Hanako piped in, showing her results to her teacher, a way of telling him that his methods did help them. "The appearance of the last question had all caught is off guard and that is understandable as we weren't aware of the addition. Yet in the end Akabane-san and I had surpassed that obstacle. You should not feel ashamed and take the blame went it wasn't your fault, Sensei." She reassured their teacher.

"So what's your plan? You gonna use our not all making it into top 50 fifty as an excuse to turn tail and run?" Karma said, getting up close to Koro-sesnei's face, pointing his knife at him. "You're just afraid of being killed, that's all." Karma mocked the octopus teacher, with this suddenly claim the class found it amusing.

"Killed by a bunch of middle schoolers, perphas?" Hanako added, provoking the octopus more.

"Oh, is that it? You were afraid." Maehara teased.

"You should have just told us!" Kataoka exclaimed.

The students chattered away, mostly chuckling, teasing, and mocking their teacher about him being afraid of being killed.

"Right? Like 'I'm scared and want to ran away'!" Nakamura taunted the creature.

The constant talk about this topic made Koro-sensei grew red, either out of annoyance or embarrassment, flailing his tentacles in the air.

"Nyuah!!! I am not running away!" He shouted.

"Oh, then what?" Karma hummed.

The octopus then quickly stop and turned yellow once again, before pointing at his students.

"Well get revenge on them twofold in the end-of-term exams!" He told them his revengeful plan. Which made the students in return laughed.

"Nyuah?! This is no laughing matter." He tried to stopped them, but no one listened. "Honestly!"

'We ran smacking into a wall there with our midterms, a big thick wall surrounding E Class.'

'But inside, I was proud.'

Behind the doors Karasuma-sensei and Bitch-sensei watched the scene displayed in front of them.

"Ready, now, after me: Let's get 'em!"

'Proud to be in the E Class.'

"Let's get them!"

▄︻̷̿┻̿═━一 • • • • • • • • • •

And that's conclude chapter 6, hope you enjoyed it.