This is BlueRaptor629 here! Bringing you yet another story! This is one is called "Assassination Classroom: Striker.", an AC fanfic.

The pairings...will be revealed later!

OC's will appear later in the story.

This will follow the mostly from the anime though some events are slightly different.

With that said, Let's start the assassination!

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Not too long ago, a great phenomenon had happened. Earth's moon suddenly exploded with no logical explanation, destroying 70% part of it, making it a permanent crescent moon.

Some scientists theorized that this the work of aliens...but it some said otherwise.

On the other hand, Kunugigaoka Junior High School is a prestigious school to go...it used to be a great school in the inside...but one day, something changed. The Principal suddenly created a system called "E-Class" where a handful students was sent to study in an old building in the mountain behind the school. The reasons? Find out in this story!

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Assassination Classroom: Striker

By BlueRaptor629

(7 years ago)

It was late afternoon. A 7 years old boy was packing his stuff along with his parents. He has black frizzy hair and aqua blue eyes.

"That should be the last of it." His dad said as they done packing their stuff.

"Dad, do we have to go to America?" He asked with a frown. "I don't want to leave

"It's for the best, Yamada. But there's one thing I can tell you is..." He then put his hand onto his shoulder. "You'll do just fine. I believe in you."

"Okay-"

"Ya-kun!" They turns around and see a girl by his age running towards them...though she ran specifically towards Yamada. She had short brown hair and purple eyes.

"Tou-cha-" Yamada never gets to finish as the girl hug him as she cries.

"Why?" She asked with tears. "Why you didn't tell me that you're moving abroad!?"

"Tou-chan...I didn't want you to worry so much..." Yamada explained. "It's okay, I'll be fine-"

"It's not okay!" She shouted as she continued crying. "I don't want you to leave! I want you to stay! You're important to me!" Yamada then pat her head as he calm her down.

"Tou-chan, I don't want to leave too." He said. "But it's alright, no matter where I am, I always remember you." The girl then pointed him with her pinkie. "Promise?"

"Promise." He said as they pinkie promise. "Before I go, I'll give you this." He said as he give the girl a necklace. The item that is hanging is the letter word of Y, except it's only half.

"A necklace?" The girl asked as the boy show her another necklace with the other half of the Y.

"We'll definitely recognize each other if we wearing this." He said as she put on the necklace. Then, she hugs the boy with tears in her eyes and blush on her cheeks.

"I won't forget you, Ya-kun."

"I...won't forget you too, Tou-chan."

After that, Yamada and his parents leaving Touka behind in the car.

As she look at them leave, she wipes her tears off and her looks changed to happier. 'This isn't farewell. I'll see you again, no matter how long it takes.'

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Chapter 1: Assassination Time

(In the present)

???'s pov

"Touka! You're going to be late for school!"

"Coming, mom!" I said as I wake up and get ready to school. I put on my uniform that consists of a white shirt, a black necktie, and gray skirt after I put on my "lucky charm", which is a necklace with the end have a half Y...someone important gave me this 7 years ago. Then, I went downstairs to get breakfast after I put on my black socks and grab my bag.

"What's for breakfast, mom?" I asked.

"The usual." She replied as she gives me the breakfast. After that, I grab my bag and put on my shoes.

"Study hard, alright. Don't forget visit your little brother after school, not during classes."

"I know." I said as I leave the house and head towards school.

Oh yeah, I forgot to introduce myself. My name is Touka Yada. I'm 14 years old, a student of Kunugigaoka Junior High, and also one of the unlucky students to be sent to E-Class. The reason? Because I skipped school several times just so I can take care of my little brother, who is ill and is in hospital.

As I walked, I heard a voice.

"Touka!" I turned around and see my friend, Hinano Kurihashi. She has short, wavy hair and green eyes. She wears the uniform but she wears it blazer.

"Hey, Kurahashi."

"Let's go to school together." She said as I nod.

Several minutes later, We arrived at school...not really, we have to walk all the way towards the mountainside . In the mountainside, is an old building where our class is there. While we walk, I heard several insults like, "Hey look, those two are E-Class." "E-Class dumbasses." And etc. But the weirdest of them all is the moon suddenly exploded by itself, destroying 70% of it, making it a permanent crescent moon.

"Yesterday was pretty hectic, don't you think?" Kurahashi asked me.

"Yeah. I still can't believe we have to assassinate our teacher, a strange octupus, no less." I said as I recounted what happened yesterday...

(Flashback)

In front of the class is a strange yellow creature that resembles an octopus. It wears a professor clothes with a necktie that has the moon picture, and a hat. This thing's face has a smily face like an emoji. Besides it was three people in suits, with one aiming at him

"Hello there! How are you?" The creature greeted us with a male voice. "So,...I'm the one who blow up the moon."

"What!?" We asked.

"Next year, I'm going to do the same with Planet Earth, but it's not important now because I'm going to be your new teacher! Isn't that exciting?"

'There's something so wrong with this picture' We thought. It was a strong first impression.

"Uh...I'm Tadaomi Kurasama from the Ministry of Defense." The man named Karasuma said. "And...what I'm about to tell you is something you might called "classified"." He said before he sighed. "Oh hell, I'll just get to the point. I need you all to kill this thing for the sake of mankind."

"Uhm,...excuse me, no offense but isn't this some kind of a joke?" One of my classmates, Mimura asked. "Is that alien really blew up the moon-"

"The nerve! I'm an earthly born bred, thank you very much!" He said as it thows a fit.

"I'm not in the liberty to discuss the details of this juncture, but what I can said as he was telling the truth. In the coming March, which is in March 13th...he will obliterate the Earth." This is getting serious.

"The others that know besides you are the world leaders, if words spread about this to public, we will have widespread panic on our hands. This creature needs to exterminate immediately,...with extreme prejudice." He said. "In other words, you all need to become..." The man then pulled out a green combat knife. "Assassins!" He shouted as he swing his knife towards the creature...but he dodged it very fast!

"Now! You know notice that he is insanely fast!" He shouted as he tried to attack it, but every time is dodge, with the last part, it...groomed Mr. Karasuma's eyebrows." For some reason, he likes to grooming eyebrows!"

The creature dodge again, causing a gust of wind in the class. "What you saw is an unknown creature that can obliterated the part of the moon in seconds. So fast that he was clocked in Mach 20. A world where he is allowed to live is a world awaits for destruction." Oh god...

"He make it sound so grim, doesn't he?" He said as he puts away its tools. "Cheer up! I graciously made an offer with your government. "Stop making fool of yourselves and try to kill me" I said and let me teach Class 3-E at this illustrious institution."

Seriously...?

"We don't have much of a choice. But, he made it very clear that none of you students will be harm any way. The advantages here are two folds; On one hand we know it's whereabouts and weekdays, which is something. On other, you'll be in close range."

Wow...

"Hey, uh sir?" I raised my hand as I asked Mr. Karasuma, which he looked towards me.

"What is it?" He asked.

"Do we get, uh...some kind of reward?"

"Yes,...Do the deed, and you all will receive 10 billions."

"WHAT!?" We all exclaimed. Are they willing to pay us this much!? That can cover up for my college and covers my brother's medical expenses!

"It's only fair...kill him, save the world. 10 billions isn't something you find laying around in the streets compared what we are fighting for." He said as the creature face is covered with green stripes. "Yellow with green stripes means that he is feeling superior. We...have experiences with it, used that."

"Truth to be told, I'm not worried. The military couldn't kill me, why would some students could? Besides, you don't even have fighter jets!" Not even the fighter jets can stop him!?

"And It's all on you." Mr. Karasuma said as his assistant...sort of, push a cart full weapons in front of us. "Find this bastard's weaknesses and exploit it. These weapons what are you going to use is harmless to humans, but extremely fatal to him." He explained. "And this is goes without, everything that you learned here must be kept a secret. As you can see, the clock is ticking...unless you want our home turn to space dust."

"That's just about cover, I think. What do you say we start hit the books and make the final year of your lives a productive one...!"

(Flashback end)

"That can't be helped, I guess." I said as we arrived at the building.

After coming to the classroom and wait for several minutes, the creature appeared. Then we pulled out our guns before shooting him on Nagisa's cue...the student who for some reason, looks like a girl.

The creature dodged every single bullets and do a roll call. We kept shooting until we're exhausted.

The creature then demonstrated how effective the BBs is to him by shooting one of his tentacles, it's...kind of freaky...though he regenerated after several minutes.

Then classes began. Several minutes later, the bell rings.

"Oh. It's lunchtime everyone." He said as he opened one of the ways windows. "Now if you'll excuse me, I need to have a quick bite in China. You have my phone number, any killer who is feeling trigger happy is welcomed to hit me up." That's all he said before flying away again.

"Okay math. If he travels their in Mach 20..." a girl named Nakamura said.

"It will take 10 minutes to reach his favorite restaurant in Szechuan." Nagisa answered.

"Well...guess I'll be eating lunch." I said as I eat some bread while listening to what others said. Good grades won't matter if the earth goes kablooey...though at least I'm getting better.

I then look at my necklace. 'I wished you were here, Ya-Kun. You always know what to do.' I thought as I was interrupted by a voice.

"Hey, Nagisa." I see him look towards to Terasaka, Yoshida, and Muramatsu. Truth to be told, Muramatsu is a friend from elementary school like Ya-kun. He also a good friend of Ya-kun too...despite hanging out with Terasaka.

"Look alive, little man. Time to put our money where are our mouth is and get this done." Terasaka said as they along with Nagisa went out. Ryoma Terasaka, the main bully of our class. He got sent here because he slacks off from studying and his behavior...that's a one way ticket to E-Class that's for sure.

Speaking of E-Class, E has a meaning. "End of the line" and...my cup size. To be honest, I'm afraid that my chest is too big for a 15 years old.

We're technically scapegoats by Principal Asano, so we were treated like outcasts, the leftovers, and sacrificial lambs for Class A to Class D.

Once I'm done eating, The three bullies enter the classroom, then the octopus...thing, and finally Nagisa.

"Okey dokey! The assignment for this afternoon is to compose a haiku and the final line should be, "...was tentacles all along"." He said...this is getting ridiculous.

"Sir..." The girl that is sitting behind me raised her hand. She is Yukiko Kanzaki, she is here because from what I heard, she rebelled against her parents.

"Yes?"

"Do we have to...?" She asked.

"Of course...when you finish the assignment, kindly bring it forward. You will be graded for creativity, grammar, and overall beauty of expression." He said...For someone who decided to destroy the earth on next year...he's just what we needed, a perfect teacher.

"Here's an example: "Not the storm of garden snow, a flower moving on. But sprouting there instead...was tentacles all along"."

"Huh,...way to go to make it harder." Our class president muttered. He is Yuma Isogai, he was sent her because of having a part time job, which is disobeying the rules.

"You may go home once you're done."

"What!?" We all except some students exclaimed.

"But sir-"

"Should let that synapses sparking, and your imagination slithering!" He said before doing something...weird. What is he trying to prove?

"Alright we get it! So knock it off!" A brown hair boy said. This is Hiroto Maehara as his skin turns pink...must be for sleeping. From what I've seen, we pretty much can guess the colors. Only Orange and circle means correct, and purple and cross that means incorrect...but I have a feeling that there's more to him...

"Uh sir, question?" The green haired girl who is sitting behind Maehara raised her hand. Her name is Kaede Kayano...I didn't really know why she was sent here.

"Yes. Fire away, Kayano."

"Do we have to call you sir? You haven't give us your name, so we can't call you sir all the time because it's awkward."

"An oversight." A short black haired boy with baseball band said

That's a good point, he knows our name, but we don't know his name.

"Well...the trouble is I don't have names that can be given to people...so why not pick one for me?" Wow...to think there's someone who doesn't have a name.

"What could go wrong?"

"Focus on the assignment if you would." He said. "Now if you'll excuse me, I'm going to take a nap." He said as his skin turns pink as he falls asleep.

"Guess I have to do this..." I said. Just as I about to write, I heard a sound and see Nagisa standing up...something's not right.

"Hmm...? You're done already, Nagisa?" The octopus asked. The moment he stopped at the octopus, he tries to stab him with the green knife...though the octopus dodges.

"You can do better tha-" Nagisa suddenly hugs him, caught him off guard. But the worse part is...I see and recognize what's on Nagisa's neck.

"A grenade!?" I exclaimed as an explosion happened in front of us, followed by several BBs come out from the exploded grenade spreading around here and there.

"Oh yeah!" Terasaka cheered.

"We did it!" Muramatsu also cheered.

"We're gonna be billionaires!"

"Sayonara!" The celebrates as if nothing happened...it pisses me off.

"You jerks!" Isogai shouted.

"What the hell you just done!?" Maehara shouted.

"Huh, never saw a suicide bomb coming, did ya?!"

"Terasaka!" Terasaka looks towards Kayano, who is shouting at him. "What did you make Nagisa do!?"

"Oh shut up! Have you got other ideas?" He said. "It's just a toy grenade filled with anti BBs and some gunpowder to spread the range."

"But that doesn't gives you the right!" I exclaimed.

"Relax, It's not enough to kill anyone." He then knelt down to see the remain. "Let's see-" He stopped as I take closer look at what it is...it's Nagisa covered with...some sticky coccoon.

"What's this membranes?" Terasaka asked. "Isn't this the-"

"It's not a body, it's a husk." The voice of the octopus can be heard...this is starting to get scary so I return to my seat.

"I shed my skin once a month." He said as Nagisa got up. "I wrapped it around your classmate so it can protect him from the blast." Then we saw him...in the ceilings with red eyes and a change of atmosphere.

"I'm gonna go out a limb here and assume you didn't see this coming." This is getting scary...

"Terasaka,...Yoshida,...Muramatsu!" He said with a deep menacing voice as his skin turns into black angry face...this means...extreme pissed. "This was your doing...WASN'T IT!?"

"Who...us?" Yoshida asked with fear.

"It was all Nagisa's...!" Terasaka tried to lied...but the octopus is gone for few seconds before returning-Wait...that's nameplate of my house!? And also others.

"Here's the deal, kiddos, the government had forbid me from hurting you...but there's a catch..." He said as drops all of the nameplate. "If you ever pull another irresponsible act again, there's nothing that says I can hurt someone else. Friends, families, and everybody else in the world except for all of you if I feel like it!"

This is getting out of hand...Guess the only way this world to be saved...is by killing him.

"B-Bring it on then! I' ain't afraid no squids! Where do you get off and blows up the moon! I got rights, you know! Call us irresponsible! We're just only defending ourselves!"

"Of course! I know that. I'm not calling you irresponsible for trying to kill me or anything." The octopus said as he calmed down with an orange and circle face. The octopus proceeds to pat Nagisa in the head.

"No no no. As a matter of fact, Nagisa gets full marks for techniques. His composure was simply outstanding." He said before looking towards Terasaka's group.

"However, none of you cared if he was injured, not even Nagisa himself it seems. Student with that kind of attitude aren't fit to assassinate anyone!" He said before looking towards us.

"You must believe yourself worthy of the target, that means taking pride of what you do...In yourself and in each other. All of you are more than the sum of your parts." Wow...that was impressive pep talk. But still...he reminds me of Ya-kun...

(Flashback)

"The most important thing you can do is try. Try to believe in yourself, believe that you can do it. If you can't, then we'll help you out. You are more than the sum of your parts." Ya-kun said.

(Flashback end)

He always beside me when I'm feeling down...He's a great friend someone could've asked.

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Normal pov

Seeing this makes the octopus reminded of an event.

(Flashback)

In ruined test facility, was a silhouette with its hair moving like tentacles. He was holding a woman who is on verge of death.

"If you...If you can sacrifice a little a bit of your time, you can give the children the tools they need to succeed..." She said as she hold one of the tentacles. "Such wonderful tentacles. With hands like this, you can reach them. I know it in my heart."

(Flashback end)

The octopus proceeds to cover the burn mark from the explosion before looking at Nagisa.

"Here's a puzzle for you, Nagisa: Eventhough I have no intention of getting killed, but I have every attention to enjoying our time together before the planet goes kaboom. What is exactly are you going to do about it?"

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Yada's pov

"What is exactly are you going to do about it?" The octopus asked Nagisa.

He's...got a point there. It's not like we have experience to kill...but I have feeling that we can do it. I-no, WE have to try. I have feeling that we'll learning fast.

"I think you'll find out that I can do plenty, sir. Just you wait and see." Nagisa said as the octopus has green stripes on its face again.

"Nurufufufu, that's the spirit!" He said as he looks towards us. "No one leaves until I vanquished!"

"What!?"

"Way to go, Nagisa!"

Then the octopus grabs one of the nameplate and start polishing it.

"How do you say "unkillable" in Japanese?" Kayano asked. "Korosenn...ai." She then had an idea. "Korosensei!"

"Korosensei...?" Nagisa asked.

Korosensei huh...? That's a nice name. It suits him very well.

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After that, I went straight home after visiting my brother.

But,...the problem is...I couldn't stop thinking about Ya-kun. Like, where is he now? And what is he doing? I hope he's okay.

"Thinking of someone, Yada?" I look around and see Nakamura with a teasing look.

"N-No, It's not like that!" I denied with blush on my face.

"I know someone who has a crush on someone when I see it." She said

"We're...just friends!"

"See...that's what a girl in love would say." She said.

"Shut up!" I said. "And what're you doing here?"

"I'll cut to the chase." She said. "I noticed you were a necklace today. What's the occasion?"

"Oh this...?" I said as I show her the necklace. "It's a...keepsake from a friend. And also a good luck charm."

"I see..." She said. "Well, better get going. See you tomorrow, Yada!" Nakamura then left as I continue heading home...

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(In America)

Normal pov

It is 4 AM in America. A familiar boy is talking to his friend in the group video chat in his phone. The boy is in his bedroom. "You're planning to return to Japan, Yamada?" A boy asked. His has pale skin, blonde hair, and blue eyes.

"Yes, Jason. My dad said since he finally got things done here. So he decided to tell us that we're returning to Japan."

"Yeah, and also reunite with your girlfriend." Another boy said, referring to Yada as Yamada blushed. This boy is dark brown skin and with black hair.

"She's just a friend, Freddy!"

"I believe it when I see her, homeboy." The boy named Fred.

"Guess we'll be missing you, Yamada." The boy named Jason said.

"Yeah, I'll be in touch with you two." Yamada said.

"By the way, It was pretty shocking that moon suddenly exploded." Jason commented.

"Yeah, maybe it was a sign that aliens are coming! They decided make an example by destroying the moon!" Freddy added.

"I highly doubt that's the case." Yamada said as Jason nod in agreement.

"But for now, let's enjoy your last days here in America!" Freddy shouted as he end the group call.

Yamada then grab an identical necklace like the one Yada's wearing. 'I hope you still there...Tou-chan.' He thought before grab a book to study.

Next chapter: Chapter 2: Baseball Time!

Here it is, the first chapter of the story, I hope you like it!

This chapter is mostly from Yada's point of view, so forgive me if it's different.

Who is Yamada? It will be revealed later!

Review this if you like it.