(a/n)- I don't own, blah blah blah..

"As you all know, Midterms are next week, and I want you all to get a place in the top 50 places!" Koro-sensei proclaimed.

Almost immediately, anxious whispers arose from the kids.

"I'm sure you'll all be able to.. I'll tutor you all," Koro-sensei said, grinning, "With my clones!" As a flurry of many clones all moving at Mach speed with headbands of each student's worse subjects.

The clones stopped moving, and dissipated, as Koro-sensei stood at the desk, with a serious look on his face.

"Currently, you're all just riding on Demon-slaying, thinking 'oh! I'll just kill him and get the bounty,'" he said, voice harsh, "But what you aren't thinking is of what you're going to do after, if you manage to kill me."

"You can't just rely on the ten billion.. One day, you'll be normal humans, in the normal world," he continued. "That's why, in order to sharpen your second blade, I'll leave the school if you don't end up in the top 50 places."

Cries of outrage and anger filled the classroom, demanding an explaination for this mad behavior.

"So, let's get studying!" He exclaimed.

Once again, the blur and afterimages of many clones and their various headbands for the students, and the class began feverishly working, to insure the Octopus wouldn't leave their school and quite possibly destroy the earth before the March deadline.

"Why do I get the Naruto headband?!" Shouted Terasaka, as his friends snickered at the implications of Terasaka being bad at everything.

"They're really motivated.." Murmured Irina, "I never thought that such brats could work so hard.."

"They don't want him to leave the school," Karasuma stated, "It's pretty simple."

Irina frowned, "They may take this the wrong way, who's to say they won't lose their crap?"

In the teacher's lounge, the principal sat, gaze fixed on a rubix cube, as he fidgeted with it, as he asked, "Do you all know about my educational philosophy?"

As Koro-sensei joined Irina and Karasuma, unbeknownst to the eavesdropper outside.

"Oh, who's this?" Koro-sensei asked cheerily.

"This is Principal Asano, or in other words, our boss."

"Ayyee!" Koro-sensei shrieked, "I am so very sorry you had to hike all the way up that mountain, can I do anything to make you more comfortable, sir?"

"No, I'm fine," Principal Asano replied, "Have you ever heard of the so-called worker ant effect?" He asked.

Koro-sensei shook his yellow octopus head.

"The worker ant effect is where 20% works hard, 20% slacks off, and the remaining 60% is average." Asano stated, "My goal is to create a school where 95% works hard, and the remaining 5% of slackers are used as a sort of motivation for the hard workers."

Koro-sensei stared at him curiously, as the principal continued, "My concern is about the fact the E-Class, which are the 5%, are becoming more.. Hard working, and are beginning to rival the others," he said, the smile on his face turning dark, "In other words, your class is messing with my system. Just earlier this week, a D-Class teacher reported that two of his students were threatened by an E-Class kid."

Koro-sensei remained silent, as Asano continued once more, "I won't try to get in the way of your little Demon-slaying that's going on in this classroom, but I am concerned for the system that I've been working so hard to keep pristine to be threatened by the students in this class, and I'm asking for you to reign in your students." He finished.

Asano stood up, pulling a silver wire puzzle from his pocket, "I'd like to see you solve this in one second," he said, and tossed it at Koro-sensei, who shrieked and frantically scrambled to solve it.

As he exited the room, Asano noticed the short blunette kid, looking up at him.

"Hello there," he greeted, "Good luck on your midterms," he said dryly, turning and leaving the E-Class building.

(ノ*゚ー゚)ノヽ(*゚ー゚*)ノ(〜^∇^)〜(ノ^o^)ノ

Finally, after a few nerve wracking days, Class 3-E got their results back

There was an aura of unhappiness, as the class knew the impending doom if what was going to take place with their teacher.

"I underestimated the principal's willingness to keep his system intact, and I can't bear to face you," Koro-sensei said.

A knife whizzed through the room, aimed straight for Koro-sensei's head.

"Oh, so you're gonna leave, just like that, simply because we didn't do well on some test, when we're the kids with the worst grades in school?" Karma asked, walking towards the front of the room. "Not all of us got bad grades," he said, flashing the high scores at the teacher.

"I think he's just using this as an excuse to turn tail and run," he jeered, "Like a fraidy-cat!"

Noticing Koro-sensei's hesitation to respond, the rest of the class quickly picked up on Karma's scheme.

"Chicken!"

"I didn't know a super-demon capable of destroying the world was such a coward!"

"Bawk, bawk, bawk!"

"I am not a coward!" Koro-sensei screeched, "And I suppose I'll be staying then!"

The class breathed a sigh of relief, happy to be able to study with their demonic teacher for a while more.

"However, at the finals, we will have our vengeance!" He yelled, as the class joined in with chatter of how they're going to be better, and so on.

"Vengeance!"

Karma just smirked, leaning back in his chair, a smug look painted on his face.

(a/n)- sorry for the short chapter! Next one will be longer, I swear! There will also be more Karma-Nagisa interactions!