Author's Note: Hey guys! Warning to those who are not reading the manga. Anyway, I got the inspiration of writing this fanfiction from the song Goodbye Friend by Bowling for Soup. The lyrics are in italicized. Enjoy the feels trips! :)

Kayano Kaede stood in front of a dilapidated wooden building. She became teary-eyed as she silently prayed. It's been 7 years since she graduated from Kunugigaoka Junior High School. It's also been 7 years since the death of their precious teacher, Koro-sensei. Even after several years, it felt as if everything just happened yesterday.

"Hello, Koro-sensei!" Kayano smiled and said as she entered her old classroom. She started reminiscing the irreplaceable memories that occurred inside the four corners of that room.

He told everybody goodbye

He had a look in his eye
Like this could be the last time

"It's been 7 years since you bid us goodbye using that last roll call that you requested from us. You had a contented look on your face as you prepared to be assassinated. As you call each one of us, we responded to your roll call with tears and smiles painted on our faces."

I knew you were feeling down
I wish that I had been around more
Could I have changed things
Maybe I could have changed things

"I still remember the reason why I enrolled here in Kunugigaoka. It was because I wanted to seek revenge for Aguri's death. I wanted to kill you back then. I was wrong for jumping into conclusions. I didn't think that you were also deeply hurt by my sister's death. Maybe things would have changed if I didn't assume such things. Maybe." Kayano continued as she went to look outside the window.

And it's the rainy days
That mostly remind me

"Our times with you are the remarkable ones. We're always reminded by that fateful incident during rainy days," Kayano said as tears rolled down her cheeks.

Goodbye friend
I hope you found
The answers you were looking for

Kayano sighed and smiled, "I hope you've been reunited with my sister."

Goodbye friend
I don't think that you ever knew
That there was someone here
There is someone here
Who misses you

"Wherever you are, Koro-sensei, we hope that you are happy. I am glad that I was the one who gave you your name."

You were my biggest fan
Together forever and then

"You've always been very supportive to our ideal careers. Sugino-kun is now a baseball player. He's been featured in sports newspaper several times already. Manami-chan is a laboratory researcher already. She became one of the well-known scientist because of her study of the tentacle cells. Itona-kun has already reclaimed their factory and is one of the leading factories in Japan. Karma-kun is already a bureaucrat and is well-respected by the people. Yoshida's motorcycle shop and Muramatsu's ramen shop are both expanding. Sugaya-kun has his own art gallery. And now, I'm back with being an actress," she said as she sat at her former seat.

So many things I should've known
You were always there to help me along
And always there to sing my song
I wish I had told you
Man I sure hope I told you

"Lots of things have happened. I wish you're still here so that we can still share all these stories to you. We won't be in our current careers if you didn't help us. You were always there when we're weak and troubled. A simple thank you is not enough for all the things you have done for us," Kayano said as she opened one of the photo albums of Class 3-E at one of the book shelves.

And it's the rainy days
That still remind me
Yeah it's the crazy, crazy days
I need you here

"We've enjoyed each days with you, Koro-sensei. If only we could turn back time and stay in those days where laughter, adventure, and life lessons are the highlights each day. But those days have to end a day before our graduation," she said as she looked at the pictures. She can't help but cry seeing those pictures.

Selfishly I'm mad at you
For making me feel like this
I wish I could talk to you
Like I used to

"I'm kinda upset sometimes, you know. I-I wasn't able to say sorry to you for what I did. I know that you've forgiven me, but I still want to apologize to you."

And tell you that sometimes I hate you
For doing this to the people
That loved you so
They look at me like I'm supposed to know
And then I'm told

"And even though I tried to mercilessly kill you back then, you saved me twice. You removed those tentacle cells and you saved me from death when I tried fighting your former apprentice. In exchange for my life, you sacrificed yours. If my life wasn't in danger, maybe, maybe you could have regenerated your strength and live today."

So thank you for saying goodbye
And letting me know we're alright
I hope that I deserved that

"That night when you told us to hold on to your tentacles, I-I held on tightly. I don't really want you to die but we don't have a choice. After all, it's your final wish. When Nagisa aimed for your heart, our hearts were shattered as you faded into light."

Goodbye friend
I hope you found
Whatever you were looking for

"Koro-sensei, were you contented with your second chance in your life? I hope you did. I'm glad that you met my sister, that you granted my sister's wish, that you met us. You have done so much for us. We're very grateful that we had a teacher like you."

Goodbye friend
I don't think that you ever knew
Goodbye friend
I hope you found
The answers you were looking for
I don't think you ever knew
That there was someone here
There is someone here
Who misses you

"Thank you so much and I'm so sorry. I-I will continue to cherish the second life that you gave me" Kayano continued sobbing as she closed the photo album and placed it back to the book shelf.

Oh I miss you
God I miss you
I miss you

"We miss you and your life lessons, laughter, adventures, and assassination attempts. Thank you for being a part of our lives."

"Koro-sensei, I'm glad that I was part of this Assassination Classroom!" Kayano said and smiled as she wiped away her tears and walked towards the door to leave the room.

Author's Note: And that is the end of the feels trip. I hope you enjoyed the ride! :)