Lol I have been updating this very fast… why? Because I fucking enjoy it! I mean come on! I love assassination classroom too much and I want to spread the love to everyone and possibly increase the amount of fans of this manga! I am still waiting for an Assassination Classroom yaoi doujinshi dammit!

Disclaimer: I don't own Assassination Classroom Matsui Yuusei… if I do Akabane would have sex with Nagisa already… hot steamy sex.

Warning: Yaoi, so those close-minded people can fuck off.

Shiota Nagisa panted… Karasuma-sensei's lessons were really tiring and everyone is really tired after.

"There's a Quiz at 6 huh?" Sugino sighed

"Well you wanted gym to end," Nagisa pointed out chuckling slightly at the irony.

And out of the distance Nagisa noticed someone standing there drinking a packet drink.

"Karma-kun… you've returned." Nagisa muttered out.

"Yo Nagisa-kun, been a while." He said as he walked across them.

"Woah that's the Koro-sensei I have heard about? Amazing he really does look like an octopus."

Out of the corner Koro-sensei finally noticed Karma.

"You would be Akabane Karma-kun right? I'd heard your suspension ended today" He crossed his arms (Tentacles?) and his faced turns red as he sighed.

"You really shouldn't be late on your first day."

"Ahaha I've gotta get back into rhythm of school life." Karma sheepishly replied before holding out his hand.

"It'll be more relaxed if you use my first name. Anyway its nice to meet you sensei."

"Same here lets have a fun and interesting year." Koro-sensei raised his tentacle and accepted the handshake…

And his tentacle was destroyed.

Karma immediately exposes his blade hidden in his sleeves and stabbed forward.

Koro-sensei jumped to the right in his extreme speed… only to dodge an incoming sweep of a blade.

He reacted too slowly though and loss another tentacle.

Beside Koro-sensei was… Keichi Ryu.

"Huh you are really fast and these knives really do work against you… I tried cutting one into small pieces and sticking them to my hand but… Y'know sensei, to be deceived by such a simple trick, and on top of that to jump that far back, aren't you a bit too frightened." Karma narrated.

"You were also quite easy to predict… Sensei." Ryu injected.

"You are…"

"I am Keichi Ryu… I was transferred here to this class and I will be your student… though I am kind of disappointed I expected more than speed from you." Ryu walked closer to Karma.

"You reaction time was 0.210 seconds… a normal human reaction time… If I had swung just a tiny bit faster your head would have rolled sensei." Ryu smirked.

"I heard you were called Koro-sensei because you were unkillable but…" Karma moved up close to the sensei.

"What's this… sensei could it be that you are actually and easy mark." Karma and Ryu both smirked as his face turned almost black. With veins popping out of his head.

"Nagisa you're friends with them right? What sort of people are they?" Kaede asked

"We were in the same class for out 1st and 2nd years but…" Nagisa looked at Karma.

"Karma-kun in the second years has been suspended because of acts of violence… and they put students like that in class 3-E too. But… currently in our situation he might be an honor student."

"Eh? Why is that?"

Karma took out his knife and started playing with it.

"If dangerous weapons and the like are the foundation of sneak attacks and foul play then Karma-kun will probably excel."

"Then what about Keichi Ryu… he is supposed to be a top student right?"

"Ah Ryu-kun he…"

"I negotiated with the chairman to be here." Ryu piped in.

"Ryu-kun you did that? Why?" Nagisa asked shocked.

"I suspected you were bullied… therefore I needed to make sure that you are alright… well me and Karma both… isn't that right?"

"Of course." Ryu and Karma both instantly released deep dark killing intent.

"Anyone who touches you… will wish they were never born." Ryu and Karma both muttered out at the same time scaring the rest of the students…

Keichi Ryu POV…

Koro-sensei… is really just too fascinating… Mach 20 speed, regenerative limbs, and multipurpose tentacles… it feels like someone's dream character came true…

We are in the classroom and I sit with Karma at the back.

We are having a quiz but it was so easy that Karma and I have finished it in 15 minutes… and currently sensei sulking at the corner punching the wall amuses us to no end.

"All of that brooding is annoying! Koro-sensei! We're taking a quiz you know." Ah Hinata-chan has to ruin the fun.

From the corner of my eyes I could see what Karma is planning… only he can think of such a sly plan.

"Yo Karma, Don't come crying when you get that monster mad~" Terasaka and his friends… I narrowed my eyes… they were the ones who cause Nagisa to get hurt.

"It would've been better if you stayed secluded at home again~" Muramatsu… I wonder if he has a death wish.

"If you were about to be killed of course you would be angry… Terasaka it's different than when a certain someone failed and wet himself." Ah… smart move causing a commotion to get attention to him.

"Wh- I didn't piss myself! Bastard you looking for a fight." Oh the irony.

"Hey you over there don't make a ruckus during the test!" The red face teacher looked really angry… probably still sore over the insult we made.

"Sorry Koro-sensei." Oh so he is starting…

"You see I already finished so I'll just eat Gelato and be quite."

"You can't do something like that during class! Honestly where did you buy tha…" The teacher seems to have finally realized.

"THA! THAT'S THE ONE I WENT TO ITALY AND BOUGHT YESTERDAY!"

"Ah sorry! Ryu said I would be able to find something cold in the faculty room." I smirked

"The faculty room is usually used by teacher so 80% of the items you find there should belong to Koro-sensei… there should be some blackmail materials there." I said to Karma.

Ah I knew Karma would make good use of that knowledge.

"This cannot be settled with an apology! And after I went through so much trouble flying through the cold stratosphere so the gelato wouldn't melt!" So he has the ability to survive any temperature? Or did he just wear thick clothes there.

" Heh. So what will you do? Hit me?"

"Absolutely not! I will just eat what's left!" He took a step… Karma and I smirked.

He leg started to dissolve and Karma whipped out a gun.

"Ahaha~ I fooled you again." He shot at him and he dodged… to right where I wanted him again.

I swung blade and struck another limb… he was really still too fast for me to strike the head.

"You should be more careful Sensei… after all… we are all hunting you." I said with a smile before siting and leaning back on my seat.

Karma smirked. "We'll use these sorts of tricks however many times it takes… I don't care about interfering with class. If you don't like it then you should kill me as well as my parents."

He took a step forward as I frowned… he is still sore about that huh.

He took the cone and stabbed it on the teacher shirt.

"But from that moment on, no one will view you as a teacher anymore… you'll just be a murderous monster. I will have killed… your existence as a sensei."

He smiled before throwing his test paper at sensei.

"Here my test. The answers are probably all correct. Bye sensei! Lets play tomorrow too."

And he left.

I sighed… he is troubled.

After school, I walked towards the train station only to see a few assholes bullying Nagisa again… I narrowed my eyes and was about to intervene when Karma came and solve

"Ah! Ryu-kun! Would you want to come home with us?" I nodded and walked with them.

"By the way Nagisa-kun." Karma suddenly spoke.

"Do you know Koro-sensei pretty well?"

"Y…Yeah well… sort of?"

"So do you think he'd get angry if I called him an octopus or something like that?"

"Octopus? Hmm… It'd be more like the opposite." We looked at him in surprise.

"He draws himself as an octopus and it seems he uses an octopus as his player character in games too. A while ago he dug a hole on school grounds and said 'Octopus pot'" I sweat dropped.

"…As a one- line gag." Nagisa sighed

"It seems like somewhat of a trademark for sensei."

"Hmm… I see, I've thought of something nasty." I narrowed my eyes… I really hope Karma is not going to do anything dangerous.

"Karma-kun what are you planning to do next?" Nagisa muttered out… he is as worried as me huh.

"…Y'know I'm happy…" I widened my eyes as a train arrived

"I'd been wondering what I would do if he were just a monster but… with him unexpectedly being an upstanding sensei… I'll be able to kill a proper teacher… since the previous one went and died of his own accord."

He is definitely going into depression.

After Karma arrived his stop it only left Nagisa and me.

"Ryu-kun?"

"Hn?"

"You think Karma-kun is going to be alright? I can't help to feel that he is very depressed about thinking about him…"

"Yeah… We can always console tomorrow… though… we might not get the chance though."

"Eh?"

I reached my stop and walked out. "Goodbye Nagisa! See you tomorrow."

"Goodbye Ryu-kun…"

The next day… Karma was really too impatient...

Karma stabbed an octopus and placed it onto Koro-sensei's chair… How idiotic… and I was disappointed that actually everyone is now sweating and expecting Koro-sensei to react… I can bet that he will not and would actually use it to humiliate Karma.

Through the target's behavior it should be clear that he would throw this type of threat as a joke and use it to his advantages… Karma is definitely not thinking straight… Yesterdays event must have caused him be rather depressed.

The door opened. "Good morning."

"Hm? What's matter everyone?" He noticed the octopus.

"Ah sorry! I mistook it for you and ended up killing it… I'll throw it away so just bring it over here." I lay on my desk and I sighed inwardly… what a horrible plan.

I looked up and saw… his tentacle hands have turn into drills. I widened my eyes about to jump out and defend Karma I stopped myself when the teacher flew out and returned with a bag and… a missile?

"Allow me to show you, Karma-kun. The power of these drill tentacles and the heat of this missile snatched from the self-defense force."

He drills the octopus on the missile flame.

"Sensei never lets an assassin go home bored."

He rushed forward… and feed Karma a takoyaki? Karma immediately spit it out.

"That complexion comes from not having eaten breakfast, doesn't it? I have made takoyaki with mach speed if you eat this you'll come closer to being a healthy child."

He released as slight menacing aura. "You know Karma-kun, I am a teacher who performs maintenance and improvements on the rusted dull blades of assassins for example." He ate his takoyaki.

"You should come at me each day with a serious intent to kill… and each time I will improve you. Before school lets out, I will polish your body and spirit until they shine."

And then lessons started.

Koro-sensei was going through some problems while I noticed Karma moving and was about to raise his gun… did he forget that Koro-sensei could sense air movement? From afar it would be almost impossible to kill.

As expected the teacher extended his hands and removed his gun.

"…And it turns into this, ah Karma-kun the span between drawing your gun and firing is much too slow. I had time to spare so I gave you some nail art." His control over his tentacle is of high level.

During cooking lesson, Karma-kun went for a more direct assault… by spilling a pot on the teacher. As expected it didn't work… Karma was even dressed up in a frilly apron… that is really a rare sight.

His final attempt was even more direct… and it ended too pitifully.

Karma is now sitting on a tree near a cliff while Nagisa and I stood at a distance. Karma is biting his nails in irritation.

"Karma-kun… Don't be impatient and we'll all kill him together…" Nagisa muttered out

"You have been a bit too impatient Karma. Your plans have been a bit too careless you should calm down." I stated

Nagisa stepped up "If you target Koro-sensei by yourself… no matter what tricks you use you can't kill him. He's different from normal teachers after all." Karma did not answer… just seem to be deep in thought.

After a while he spoke up "No way. I want to kill him. Him surviving by some fluke would piss me off the most."

"Now then Karma-kun." We turned back and saw Koro-sensei.

"Today sensei certainly provided you with lots of improvements… You can still kill me you know?" He is looking down on us.

"I will polish you until you shine even brighter."

Karma smirked. "I'd just like to confirm it but Koro-sensei you're a teacher right?" Eh?

"? Yes."

"So would a teacher put his life on the line to protect his students?" Wait don't tell me.

"Of course a teacher's a teacher after all.

"I see that's good." He raised his gun.

"In that case I can definitely…" No he is not going to do what I am thinking he is going to do.

He jumped "Kill you."

I rushed forwards disregarding anything else until I felt a rush of wind went pass me. I looked down and saw… Karma trapped on a web of tentacle?

I collapse on my knees in relieve.

After Karma was rescued Nagisa immediately rushed and hug him and I also couldn't help and sighed in relieve.

"Karma… you act so recklessly… you are going to be the death of me," I muttered out.

"Having thought it over I figured that just now would be the best way I could kill him, but I guess I'll quietly rework my plan for a while."

"If you dare pull that stunt again I am going to slap you" Nagisa muttered out. We chuckled.

"What's this? Have you already run out of ideas?" We turn towards Koro-sensei.

"I still have lots of maintenance implements for retaliatory purposes though. You are also an unexpectedly easy opponent."

Karma was is definitely irritated and Nagisa and I can only chuckled as a vein popped up on Karma's head.

"I'm going to kill you… Tomorrow that is." He said with a smile… I smiled too… he's mood have gotten better.

This Assassination classroom… may just be fun.

After school is over I went home took a shower and was about to go to bed until I received a call…

"Hey Ryu… do you think you can have a sleep over…"

I sighed.

"Oba-san I will not be home today." I said as I walked out of the house… and reached Karma's house.

I went through his window and he smiled.

And gave me a deep kiss.

Our relationship, which consists of Nagisa, Karma and me, goes beyond being friends.

"I need help to cheer up from my recent depression." He said as he started to undress my top.

"Wouldn't it be better if we include Nagisa? We have been ignoring him for too long I think… and you would like it better." I asked before moaning as Karma bit my neck.

"I am going rough today… I don't want to hurt delicate little Nagisa." He said as he gave me another kiss.

I chuckled "So its alright to hurt me?" I said as I slowly unbutton his pajamas.

"I won't be too rough until it cause you to hurt… I promised I will not hurt you again." Karma muttered out.

I smiled as we continued our activity…

Omake!

Koro-sensei POV.

Akabane Karma… what a problematic student. He is really smart and was able think of many creative plans that I could not think of and he is very strong. Though he is a bit too hotheaded. I will need to think someway to teach him.

I was surprised though that he managed to rile me up and successfully injure me. He has a high potential of being great…

He worked well with Keichi Ryu… he was a student that transfer to our class just because of Nagisa right? He is very accurate and paid a lot of attention to small details that sometimes I did not notice. Though he is lacking in his social life and I guess I will have him to socialize more.

I was surprised that he managed to accurately time my reaction time and gave Karma-kun enough data to carry out his plan… he has a high potential of being great…

Nagisa Shiota… he is one of the most behaved student in my class and one of the sole reason Karma-kun and Ryu-kun met each other. He is lacking in physical aspects where I have to work with him yet he is very talented in assassination… he is able to hide his bloodlust so well…

I was surprised that he managed to come close at killing me… I would have been dead if I did not have my moulting ability… he has a high potential of being great.

I would not be surprised if they managed to kill me within the year.

The Wolf… the Hawk… and the Viper

They are going to be great.

But first! I still need to go Hawaii and buy that exclusive figuring! I heard there are only 20 in the whole wide world!

Ahaha! A slight little lime in this but since this is going to be T-rated so yeah no lemon here but I probably will be writing a separate fic that consist explicit lemon that happen here. So please review!