Nagisa wasn't the only one watching Karma. At the front behind his desk , Korosensei also had his round eyes on the transfer student. His face was a normal yellow , meaning no particular emotion or other , but though there was a fixated smile on his face , Nagisa could tell that the teacher was at least the tiniest bit wary.

The creature sighed and stood up. "Now everyone.... " Korosensei was moving at Mach 20 , a blur of motion. "....shall we begin?"

"..Begin what exactly ?" 

The class stared at him dumbfounded.

"Midterm test is coming around that's!! Did you all forget ?! That makes me so sad!!" Korosensei yelled while drying his fake tears.

Okajima shrank in his seat. "Oh, crap...."

"Yes , that's right !" Isogai exclaimed.

Fuwa sighed. "Wow....this gonna be fun.."

"And that's why this period....." Korosensei sped up. "Will be spending your time and focus on your study !!" The class gasped when he suddenly appeared at each one of their desks. "My doubles cab work with you one-on-one to drill you in each of your worst subjects."

"...is it bad that this really not surprising me too much ?" Kataoka said aloud , raising an eyebrow. "Like , this guy could randomly turn into a talking dog and i'd be completely fine with it."

Sugino cross his arm and lean his head on the desk with his head on top of the other. "I agree."

"But that guy behind us is much more than the creature in front of us." Meahara pointed behind , their attention turn to meet Karma who's paying attention to the notes with Korosensei's clone disappear and reappear infront of his desk.

Nagisa nodded slowly , blinking owlishly. "Y-yeah...."

Terasaka wasn't impressed by Korosensei's move. "Ridiculous. He even switched headbands for each subject," he grumbled. When Korosensei appeared in front of him , the boy glowered but then gasped when he saw the teach had a familiar headband.

"HEY! WAIT A MINUTE WHY DO I GET A NARUTO HEADBANDS ?!?!" Terasaka complained.

Nagisa watched the teacher speed up. Fuwa tried to keep up with Korosensei's gibberish. Suddenly a dent appeared in Korosensei's face , making Nagisa jump.

" Waoh !" Nagisa exclaimed in shock.

"No sneak Assassinations if you please Karma-kun!" Korosensei scolded. "Dodging interferes with my ability to maintain steady images!! " 

Karma had his knife raised , sticking out his tongue.

"These doubles are so fine and delicate," Nagisa said. "But, do you have any strength left after making them ?"

"Not to worry !" Korosensei looked at him. "I have a double resting outside."

Nagisa blinked , blankly. "Huh ?"

He looked over at Karma who gesture silently beside the window , his eyes did not leave the papers that he was holding. Nagisa turn to the direction where Karma was pointing , outside there was a double sunbathing near the window with Korosensei clone , resting.

"How is that helping ?!" Nagisa yelled.

"But with exams looming...we're glad to have him as a teacher." The bluenette smile proudly as his teacher continue to mumbled about the study question."No matter how you slice it, he's the one tricky target for us killers."

The scene shifted to the staff room where Principal was holding a Rubix cube.

"Gakuho" known as the Principal twisted the cube around to align the colors. "Let's say you want to solve this puzzle cube as quickly as possible with a robust method anyone can use." 

Both Bitch-sensei and Karasuma-sensei watched on curiously. Back in the classroom Nagisa ,  Kayano and Karma were cleaning up the room while Korosensei was just out of the door.

" See you , Korosensei ! " Nagisa smiled.

"Good luck killing me tomorrow !"Korosensei chimed , as he walked out."Nyuh ?"

"The answer is simple." Gakuho used a Screwdriver to break the Rubix cube , just as Korosensei walked in. Gakuho smiled. "Take them apart and put them back together. Very Logical," he said , pausing when he noticed Korosensei.

"We meet at last Korosensei" The man greet as the smile still plaster on his face.

Korosensei closed the door behind him.

"He is the principal of this school" Bitch sensei said warily.

"And that makes him our boss" Karasuma sensei added. 

Korosensei suddenly stood to attention, sweating nervously. "NUYAH ?!" 

"Oh my ! How good for you to come all this way (knead knead)! Let me rub your shoulders !  " Korosensei panicked as he gave a massage to the principal shoulder. "Would you be so good as to consider a slight raise in my salary ?"

Nakamura , Nagisa and Karma walk by and overheard the conversation.

"What the hell , sir !" Nakamura scowled quietly after hearing the "salary" part as Karma stood by and watched her storm away , she clench her teeth. "Why is Korosensei kissing his ass ?! "

"I've added a few more after images to lineup , you see , and i'm sure it's in your power to—"Nagisa groaned at Korosensei 's ass-kissing while Karma rose a brow.

*Korosensei's weak point #6 : Subservient to higher-ups*

"—And , I'm sure it's within your power to—" Korosensei was cut off when the Principal turned around , still smiling.

"I must apologize. " Gakuho said. "I'd meant to come pay my respect sooner." He stood up from his seat.  "The Ministry of Defense and Karasuma-San have told me all about you." He mused lightly. "I can't claim to understand everything , but....." The room seemed to grow darker. "How heartbroken it must be to have sought to become the savior of the world...only to fall into the role of the great villain who would destroy it."

Nagisa's eye's winded. "Huh ? Savior ? Villain ? "

He placed his hand on his chest. "I'm honored. However...."  He turned back to Korosensei and walked over to the window while the teachers watched him. "I received a complaint from the D Class Teacher today," the Principal replied.

A flashback showed Takada and Tanaka complaining to Kensaku. "He said : A student from your E-Class glared at one of my students." Nagisa was shown in the screen , smiling darkly to the two boys. "and treated to kill him"

"Uh....." Nagisa's face went blank at the sheer stupidity. Karma just snorted quietly with annoyance.

Gakuho smiled coldly. "I'm sure the glare was part and parcel of the whole assassination thing , and that's fine. The problem....." A hand was shown reaching out from the swamp. ".....lies in the students with rock-bottom grades defying a regular one." The Principal's eyes narrowed. "Please tell him in no uncertain terms to control himself." He ordered. 

"Oh , and Korosensei ?" He threw something at him. "Solve this. You have 1 second."

A puzzle landed in his hands. "What ?! Just like this ?" He got flustered trying to untangle the metal puzzle. "Ah !" A second later his tentacles were knotted together.

Nagisa was shaken. "What the hell is that ?! "

Karma just narrowed his eyes at the man who stood in front of the creature.

*Korosensei's weak point #7 : Metal ring puzzles freak him out.*

"You are indeed as fast as they say." The principal said. Korosensei was getting more tangled up. "There's is no doubt you can dodge any attempt on your life...." Korosensei collapsed on the ground with the puzzle in his mouth. "But you know , Korosensei...." Gakuho loomed over the exhausted octopus who lay on the floor."You cannot solve every problem with speed alone."

Korosensei was silent , his face buried in the floor , Karasuma and Bitch-sensei remained tongue-tied as well. 

"Now if you'll excuse me." Gakuho said , walking towards the door. Nagisa hastily jerked back behind the door as it slid open.

"Hm ?" Principal Asano noticed him straight away.

"Uh....." Nagisa looked up apprehensively.

Gakuho smiled pleasantly. "Hey there kid! Looking forward to your midterm results! Good luck! " as soon he finish a sudden a dark bloodlust started tingle in the air , wrapping around his neck making him gasp for air.

As soon as it vanish , he stumble back at little. He blinked and look beside him ,  his eyes met with Karma's cold glance but he can feel the strong aura coming from the boy that was standing in front of him.

Gakuho regained composure and absently rubbed his neck." ...And you must be Karma Akabane am I right? I heard you are the smartest student in class." He force out the smile towards the boy who continue to stare at him without a word , his expression were exterminated difficult to read. "I really look forward to see your results as well" The Man didn't not make his masks slipped , but was fighting the quivering smile on his face.

"S-sorry sir , we'll be going now." Nagisa bow , apologetically. "Let's go , Karma-kun."

The aura dissolve into thin air , the chairman were able to catch a breath again. Gakuho watched carefully at the new boy walked away and disappear out of sight , he took a breath not knowing he had been held it in during the episode."Huh...." he took a glance at the empty hall at the absent students. ".....what a weird kid."

The scene changed to the next day.

"Good morning everyone !" Korosensei greeted them. He was going even faster then yesterday, making more doubles. "Today you'll be seeing more of me !"

Nagisa groaned. "That's way too many ! "

" Now let's begin !" Korosensei was going too fast , the doubles were glitching which just made the students confused.

Kayano smiled warily. "What's up , Korosensei ? Aren't you getting a little too into it ?"

"Hmm ? Not at all !" Korosensei replied.

By the time the bell rang Korosensei had collapsed from exhaustion. "You know , he does look pretty beat," Meahara commented while he and the rest of the class stared at their strained teacher. "Why's he teaching this hard , anyway ?"

Korosensei gave a husky laugh. "All to get your test scores up ! If that happens...." his eyes sparkled. Karma was at the corner , already dumbfounded at his unspoken ideas. Korosensei's face was bright pink , lost in his fantasy world. "....And with no fear of being killed. I'll be rolling in good fortune !"

The class stared at him blankly. "Uh....."

"We don't really have to be straight- A students.." Mimura smiled apprehensively.

Yada smiled. "Yeah , but if we Assassinate him , we get 10 billion yen."

Nakamura smirked , stretching. ".....And with 10 billion yen , you don't need good grades to live a good life !!!"

Korosensei was appalled. "I-Is that how you see it ?!"

Okajima smiled stiffly. "We're the End Class , Korosensei."

" Your Assassination's way more accessible to us than any exam." Mimura finished.

Everyone started agreeing as Karma could only stare at them with a blank faced. Korosensei stared at them with a blank grin. "Ah , I see how it is." He lowered his head and rose up off from the floor , his face clouded by dark shadows. "You still don't have what it takes to be assassin yet." His face was a dark purple with large X on it. "Out into the schoolyard , all of you !"

Later on , the whole class was stood on the steps overlooking the playing field.

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

"Who knows ? His mood got stormy all of a sudden." Fuwa whispered. One of E-Class's key features is it's built-in remedial process.

"By scoring the top fifty of the 186 students who take the periodic exams and receiving permission from their former teacher to return , they can leave the outcast of E-Class behind. However , their poor academic skills and the bleak environment they are provided make meeting these conditions next to impossible. Most E-Class students are made to feel remediation is beyond their grasp and come to terms with intense discrimination." Kataoka bring a confuse Bitch-sensei into the backyard as Kataoka explain it was Korosensei's idea.

Korosensei didn't look up. "Irina sensei , there's something i'd like to ask as a professional assassin."

"What is all of this ?" Bitch-sensei asked confused.

"When you're on a job , do you prepared just one plan of attack ?"

"...No." She replied. "Things rarely play out according to my initial plan." A flash back showed her concealing a large dagger and gun against her chest. "Making detailed back up plans in preparation for any possibility....." There was blood splattered on her dress as she hid from the security guards. A new escape route was planned out in her head. ".....is a basic tenet of assassination. "

"And you , Karasuma sensei" Korosensei asked. "When fighting with a knife , is the first strike the only important one ?" He walked back to the center of the filed.

Karasuma scrutinized him."The first strike is of course the most important , but your next move matters too." He replied. "Against a powerful foe , your first blow is likely to be dodged ," A slow-motion knife fight reiterated his point. "So the precision with which you can land your second and third blows can decide the fight."

"Look , What are you getting at ?" Meahara asked nervously.

"And....Karma-kun ?" Korosensei addressed the boy making everyone turn to him. All he did was raise his eyebrow. "When your usually in a life or death situation during combat against a powerful opponent , do you only use one strategy to take them down ?" Everyone got more curious even Karasuma and Irina.

Karma with a black face replied " Yes ," The screen appear a figure stood in the dark with glowing red light surrounded it. "But there's no telling what your opponent might have hidden : A knife , taser , deadly weapon or maybe even a gun. "He continued. A flash spread across the screen , sudden Blood filled and splatter around the floor with tons of lifeless bodies.  "You would need several more strategies as well as take necessary preparation in order to avoid a life or death situation and take down your foe."

The class looked over at him , stunned. Korosensei blinked , a swam of proudness melt in his heart as he started swirled around , his robes billowing behind him. He got faster and faster as the class were stunned into silence while Karma just stare at the scene in blank expression. 

"AH !" A giant cloud of dust blinded the students. The force of Korosensei's hurricane ripped the leaves from the trees and rocks from the ground. The hurricane could even be seen from the Main Campus building.

"What the—" a student shouted , gazing up at the storm.

"There's a huge tornado up in the mountains !" One of the male students yelled pointing it.

The Principal who was in the center of the crowd cast a dismissive side-along glance at the storm in the sky. "Show off. "

Back at the mountain , the wind started to calm as the sun peaked out from the clouds. When the sun hit the students' faces , they cautiously look up when the dust had settled. The yard was now a fully paved sports area with a lane for running and soccer goal.

"I am a super creature capable of wiping out the Earth." Korosensei's eyes glowed red. "If you can't show me that trusty second blade....." At the back , Karma was scratching his head. "...I'll know there's no assassin in this classroom worth taking you on." The other teachers watched on. "And , i'll flatten this entire campus before I go."

Korosensei pointed at them. "I want all of you in the top 50 after tomorrow's midterms !" The number 50 appeared on his forehead.

"WHAT ?!"

The screen shifted to later on , Kensaku ( D-Class teacher ) was overseeing the exam , while he smugly tapped his finger against the desk. The whole of E Class was biting their pencils anxiously while they tried to get through the exam. It was first period Math.

The tapping seemed to get louder.

His eyes roamed around at the nervous students , when he landed at Karma's glare that make him froze in the spot. He jerk back slightly , terrified and nervously break eye contact from the boy who's giving out a deadly vibes.

Nagisa started down at his test sadly. His test was blank with the question , then the paper abruptly transformed into a violent monster. "AH !" He dodged the attack , suddenly transformed into the world of monster tests.

E-Class started to run for their dear lives. "One knife isn't enough to kill it ! What's this question 4 ?!" Sugino shouted , holding his knife with a trembling hand.

Everyone took a few minutes to realize and understand how to solve the question, Nagisa grinned when it all clicked together. Back in the real world , the D - Class teacher's eyes winded when he noticed the sudden shift in the atmosphere. "Huh ?"

The E Class students were less tense and were writing down the answers to the questions. Kensaku - The D-Class teacher looked around in distress as the class wrote down their answers confidently. "Huh ? What's with all this kids ?! "

"This question...... "The monster was shown defeated with all of E-Class standing on top triumphantly.  "....is dead meat ! "

Yoshida slice another monsters throat.

"And the next one ! - #8 "

Rinka stabbed another question in the ribs.

"And the one after that !  "

Nagisa grinned with bright eyes. " And then—Huh ?  "

They were suddenly struck from behind by a question they hadn't anticipated. It was blood red and left a sea of chaos in it's wake. Nagisa's smile fell , both him and Karma left standing , a demonic question materialize from behind.

Questions #11.

It reach out with a giant hand and everything went black. "An unseen question beat us to death from behind. "

The question ate them all away expect one of them.

The next day , Nagisa looked at his score in disappointment. 'Total score 315. Ranked 105th out of 185.'

Back in the class room , everyone was silent and the whole room was dim. All the students received low marks, meaning that they have to remain...the E-Class.

" The responsibility is entirely mine." Korosensei said, subdued. "I see to have underestimated what this school is capable of." he continued, his voice strained. "I can't even face you after this."

A knife nearly stabbed him in the back of the head.

" NYUYA ?! " Korosensei barely dodged. The knife hit the boards and fell to the ground. He turn  around seeing non other then Karma sticking his tongue out.

"You sure  ?" Karma narrowed his eyes.

"Huh ?" Korosensei looked over.

Karma sighed as he stood up , walking towards him."If you can't face us, you can't see us coming to kill you."

Korosensei was angered " Karma kun ! I am very depressed right now and-"

Karma tossed his result on the desk , halting the teacher's outburst." Nyuh ?"

"Oh !" Korosensei nearly choked.

Karma had gotten all 100% out of his test.  'Ranked 1st in Year 3' 

" A-A.....p-perfect 500?!?! " he stated shocked as the whole class students gathered around his table staring at the test in disbelief.

"What ?!"

" No way man! That's means you're the first in school?! " Isogai gasped.

"No, tied for first" Karma answer in a bored tone.

"Eh ?" 

"...I tied with the principles son" Karma added shrugging.

"I'm a new students after all and I have no problem to all this question but you really went the extra mile." A Flash back showed Korosensei's frantic teaching. 

"Just a little further ! A tiny bit ! Just a little more !" Korosensei had encouraged him.

"So I could handle these questions even though they upped the difficulty." Korosensei stared down at the test results. "And beside... this test was made for junior-high schoolers I've already fine tuned this stuff." The Class listen him awe. 

"I want to stay here." Karma added shrugging .  "And there's no way I'm leaving until the mission is done. So what's the plan? You gonna use the other's result as an excuse to turn tail and run ?" Karma taunted , grinning as he held up a knife. "Cuz it's pretty obvious you're just scared that we might had you killed"

A vein popped at the back of Korosensei's head.

"Huh ?" Nagisa's eyes widened briefly , but then he smiled fondly.

The others students exchanged amused glances with each other , catching on to what Karma was doing. "He's giving us a chance of not giving up. "

 Kataoka nudged Meahara who grinned , following Karma's example to teased and pissing Korosensei off. "Oh , so that's it ?" He stretched casually. "You were scared ?"

"You should've just told us up front !" Kataoka smiled.

"Just be like "i'm scared ! I wanna run home to my big Octopus mummy !"Nakamura teased.

Another vein pluses on Korosensei's face until his whole body was bright red. "NYAH !! I am not running away ! " he yelled , waving his tentacles.

"Eh ? Then what ?" Karma asked innocently.

"Nyuh ?" Korosensei's anger faded as his smile returned back to normal."We'll pay them back twofold one the end-of-term exams !"

The laughter only grew. 

"This is no laughing matter !"  Korosensei shouted. "Honestly !"

Nagisa was laughing harder. "We ran smack into a wall there with our midterm exams." 

The screen zoomed out of the classroom.

" Karma-kun? " Nagisa walked over to the cliff where Karma sat at the edge.

The boy hummed in replied , he didn't bother to looked over his shoulders.

"The first time you came here ," Nagisa nervously play at the hen of his uniform. "y-you said they can't kill you."  Nagisa narrowed his eyes , curiously at him. "What do you mean by that ?" 

But all the boy did was sighed and shrugged , gently.  The wave of wind rushing over them , taunting their hair. The scene shifted up to the bright sky then everything turn white.

 "Such a mystery , huh ?"