A Year To Forget

Characters: Class 3-E Students; Koro-sensei; Irina Jelavic; Tadaomi Karasuma

Nagisa's POV

"Um... Koro-sensei, are you alright?" Kayano asked tentatively, as Karasuma and Irina were running towards us, concern and curiosity etched in their faces.

Our octopus sensei, Koro-sensei, was sitting in the ground, rubbing his round head, as he was seemingly in pain. We looked at each other as we wondered what happened to him.

Koro-sensei was usually alert, even though he was usually distracted. That is the real reason why no one, even us, can land a hit on him. But because of one little mistake in our newest assassination attempt, Koro-sensei, usual the caring and overprotective type of a teacher, had little time to save himself as he tried to save Hara and Fuwa from being hit by a falling projectile, namely a tree.

Yup, we had sacrificed a damn tree for an assassination attempt, and it backfired. I am sure that someone who planned all of this will get a load of scolding from Koro-sensei himself.

Speaking of Koro-sensei, it seems that his head was badly hit. And even though we are assassins supposed to assassinate Koro-sensei, considering he was currently down, we can't bear to even swipe a knife on him. Probably because of what he had revealed to us weeks ago.

Kayano Kaede, one of our classmates, was actually the sister of our former teacher Yukimura Aguri. Her real name is Yukimura Akari, she is an actress, and she has tentacles. She even claimed Koro-sensei killed Yukimura-sensei!

Because of that, it leads to a battle to death between Koro-sensei and Kayano, which we had found out from Itona-kun that the implanted tentacles could kill Kayano...and to end her bloodlust, I had kissed her on the lips.

I am sure I couldn't bear to look at Kayano in the eye for that.

Eventually, we found out Koro-sensei was once a human. Not only that, he was revealed to be the legendary assassin, the God of Death. Knowing he was actually a human, some of us hesitated to kill him, and instead wanting to save him, but some of us, like my bestfriend Karma, never agreed.

It leads to a 'civil war' of sorts, where our class were separated by two teams. We fought to let our voices be heard on the fate of Koro-sensei, and in hindsight, to settle the score between me and Karma.

Eventually we, the Save Team, won the battle. At the same time, my friendship with Karma has been restored like before and together, we find ways how to save Koro-sensei. The E-Class' bond became stronger than before, and we all give our thanks to our dearest Koro-sensei.

Until now, there was still no luck finding a way to save him, but we still never gave up, since March is has yet to come.

"Koro-sensei?" We all asked, as we gathered around at where Koro-sensei was sitting on the ground, dazed and confused. We all got worried for our teacher, since we had started to love him. He was an excellent and caring teacher, and it was the first time we had a teacher like that.

At a blink of an eye, Koro-sensei suddenly stood up and looked at us, his signature beady eyes narrowed, as his usual yellow turned a little grayish black, creating chills in our spines. Even Karasuma-sensei, who was the most emotionally-constipated than us, shivered at the stare and looked at Koro-sensei with apprehension. Irina-sensei looked scared, as she was holding Karasuma-sensei's arm protectively.

We all knew what that color means.

Pissed.

He must be angry at us.

Koro-sensei sighed, closing his beady eyes, as he started to speak. But what he had said next confused all of us. "Apprentice, come here! Where the heck is that kid?" he spoke in a cold voice, which was never heard in our dear happy-go-lucky teacher. Not even once. Although we already heard Koro-sensei's scary voice whenever he's pissed, his tone now was different from what we have been used to when he's angry.

Because we know that he still cared for us, even though he is angry. But now? I felt like he was a stranger.

A stranger that you were not supposed to meet.

We looked at each other as we try to figure out the words, as he spoke it in perfect English. Although we are not fluent in the foreign language, I could say I am amazed at how Koro-sensei was speaking it. And by the looks of my classmates and teachers, they were also feeling the same way.

Suddenly, Koro-sensei suddenly spoke in a language we don't recognize. We stared at him again in confusion, while Bitch-sensei was nodding to herself, even though her eyes were still as wide as saucers. It seems like Irina-sensei understood what Koro-sensei is saying.

But something made us more confused as ever.

Apprentice?

Do he mean us?

His current stduents?

Or the Reaper, his former student?

And what kind of language is that?!

"Um... Koro-sensei?" I tentatively asked, as my blue eyes looked at our teacher in apprehension. I also feel my classmates' fear, as I am good at analyzing emotions and wavelengths. Karma narrowed his eyes as he was gripping the Anti-Sensei knife tightly than ever, ready to defend himself and his friends even though he knew that he is no match for Koro-sensei. Even Karasuma and Irina-sensei was looking at Koro-sensei in apprehension, like they were ready to put their lives in front of the kids.

Koro-sensei groaned in annoyance and suddenly stared at us, his beady eyes still narrowing. His face was still grayish black, and we could see his teeth sharpening than ever. He was glaring at us like we were scums on the Earth, before turning to his usual yellow color, although we could still feel the malicious aura radiating around him.

We had all wished that we could now decode Koro-sensei's feelings right now, as he was still wearing that usual smile on his face. All year, we were trying to decode his emotions, and we got pretty good at recognizing it. But this time, the expression he was making was not familiar to all of us, as there was something mixed on it.

Malice.

Chill rises up in our spines when we all looked at Koro-sensei's beady orbs. Even I was trying not to fall down on my knees due to nervousness and fear. We still don't know why we felt that.

But we know that this is not our teacher we knew and loved.

We didn't expect what he say next.

"Who the heck is Koro-sensei?"

His voice lowered an octave as possible, as he was still glaring at us, as we stared at him with shock and confusion in our faces. Then he tried to walk towards us, as we stepped back. Emphasis on the word tried.

He suddenly fell down, yelping in surprise as he was clumsily tangled in his multiple tentacled limbs. We sweatdropped at his actions, our fear suddenly forgotten. Some of us can't contain a chuckle, as some was brave enough to try helping Koro-sensei on his feet(?).

"Are you alright, Sensei? Don't worry, we are just trying to help you," Isogai, the ever polite class representative, asked Koro-sensei, who was looking at him with an apprehensive look, before holding Isogai and Terasaka's hands. He stood up clumsily, speaking again in that strange language.

We are not dumb to infer that Koro-sensei had spouting curses and inappropriate words. It was confirmed by Irina-sensei's raised eyebrow and a little snort. For her, it was not everyday you can hear a childish yellow octopus teacher curse like a sailor, although it was in a different language.

He then looked at his tentacles and touched his round face.

"What the heck with these... Slimy tentacles?! My body! My ever handsome face!"

He had glared at his tentacles like it was an assassination target waiting to be assassinated in his hands. The tentacles slithered and shivered, as if mocking the angry Koro-sensei.

Some of us rolled their eyes in annoyance, some snorted at his comment. We can never imagine what is Koro-sensei's appearance back when he was still a human, so his outburst can be true or just the ego talking.

"Give me a mirror, brats! Immediately!" He screamed at us who were suddenly looking in surprise, as Nakamura-san, ever the brave one, rolled her eyes and grabbed her pocket mirror in her skirt pocket.

Koro-sensei grabbed the mirror and saw at the reflection of his face in the mirror, then screamed like a girl. "MY FACE! WHY AM I LIKE AN EMOJI?!"

We can't contain our laughter at this one, even Irina-sensei falls to the ground, laughing uncontrollably. Karasuma-sensei raised his eyebrow, while some of us snorted.

Koro-sensei then stared at our laughing faces, growling like a rabid animal before glaring at us, throwing a tantrum. "WHY ARE YOU LAUGHING?! STOP IT!"

When he realized that we can't stop laughing, he folded his tentacles in his chest, pouting angrily, before sighing and stared at us with a glare. "Who the heck are you, and why am I, the God of Death, the world's greatest assassin, here in this place?" Koro-sensei then spoke loudly in confusion, as he was still looking at his tentacles in disgust, then at us.

We stopped laughing (even Okano-san kicking the laughing Maehara in the gut), and stared at our octopus teacher in confusion and shock at the octopus in front of us, who was still glaring at us like he wants to kill us on the spot, then at the tree which hit Koro-sensei's head, and to each other.

Even the most simple minded could actually figure out what happened to our sensei. And one conclusion popped up in our minds, as we stared to each others' eyes, we all thought the same words.

Great. Koro-sensei has amnesia.

A/N: Welcome to Chapter 23 of Oneshots and Tentacles!

This idea of mine was actually made months ago, but decided to rewrite it and placed it here.

In this one, Koro-sensei has forgotten everything that happened after he was captured by Shiro, due to a failed assassination attempt, and that means all memories of the E-Class and Aguri Yukimura were erased in his mind.

This one was placed between the Civil War arc and the Valentine episode. And sorry that Koro-sensei is actually an OOC here.

I don't know if when I am going to update my other stories, since I have schoolwork to do, and I am currently down with damn measles.

See you on the next updates, guys!