「Yandere! Nagisa x Reader」
-This might be very gory for some of you, so if you're sensitive to such things then you can skip this one-shot.

"(y/n)-senpai! Can you help me with my homework?"

"Karma...I'm not your senpai.
Aren't you smart enough to answer your own homework?" You ask the red head. The said male smirks and says, "But in this class, you're top one~ I wanna learn from you sensei," He teases.

"Fine fine. Just shut your mouth." Karma smirks and ruffles your hair.
"Gaah! K-karma don't mess up my h-hair!" You said, a blush slowly creeping up to your cheeks.

"So cute~" "Shut it Akabane!"

Meanwhile, a certain bluenette saw the scene unfold with wide eyes.

'K-karma? Why is he touching my (y/n)? H-he's gonna take her away from me! I won't let that happen..(y/n) is mine. Mine only....ahaha'

ーーー

After helping the red head with his homework (which was really easy for the both of you), you and the red head just sat down on the couch. Silence filled the atmosphere.

"You have pretty eyes (y/n)-chan," Karma says. "H-huh? Thanks..?" you answered timidly.

"Really. Your eyes are beautiful. I could stare at them forever..." the red head states and locks eyes with you. 'I didn't know his eyes looked this good up close.' You thought.

Slowly, Karma felt himself leaning in. Your lips so close to touching his. His hand went at the back of your head and closed the gap.

Karma's lips were very soft and plump. Kissing him felt like bliss to you. And you wanted more. Slowly, he pulled away. His cheeks tinted with red.

"I'll call you later?" He asks and you giggled.
"Ne Karma, I want to stare into your eyes forever too."

Pecking him on his cheek, you grabbed your bag and left his house.

[Ding~dong]

"Did she forget something?" Karma wondered and opened the door. "Nagisa? What are yo- ahh!" Pain shot through Karma's body as Nagisa stabbed him in the abdomen with a knife.

"Gomen Kar-ma-kun~ I can't let my (y/n)-chan get dirty! Ahahaha," Nagisa says, pulling the knife out.

"Y-you're crazy!!" Karma says, spitting out blood. "Me? Of course I am! Hehe..crazy in love~!" The bluenette laughs madly.

Nagisa stabs him again, but this time on his thigh.
Then on his shoulder. The blunette would also grazed the knife on Karma's cheek.

Nagisa slowly brought the tip of the knife above Karma's mercury gold eyes.

"S-stop Nagisa!" The red head pleads. Not his eyes.

Ne Karma, I want to stare into your eyes forever too

"I'm sorry."

ーーー

'I haven't seen Karma for a while now...is he sick?'

You kept thinking about the red head. Her worries growing as each second pass.
Come to think of it, he never called after that.

Leaving the classroom, you decided to visit Karma's place. Ringing the doorbell, no one answered.

"Kar-hmph!"

A hand covered your mouth with some cloth. Chemicals were most likely present in the cloth which caused you to pass out.

Blue eyes met your (e/c) hues.

You were chained to a chair, your clothes were tattered and you were gagged.

Nagisa's face slowly came into view. You screamed for help but your voice was muffled. "(y/n)-chan, are you okay~?" He ask and removes the gag.

"Argh! N-nagisa, untie me please!" You say, taking in deep breathes. "Now why whould I do that if I was the one who tied you in the first place?" Your eyes widen as his words sink in.

"W-why?"

"Hihi..because..because..YOU WERE GETTING DIRTY! THOSE GUYS STARING AT YOU, CONTAMINATING MY PRECIOUS (Y/N)! Ahaha you're mine. Mine only. No one can have you~"

Tears started to well up in your eyes. How could he do this? "If you disobey me and get contaminated...This is what will happen." He placed the black box and slowly opened the lid.

Really. Your eyes are beautiful. I could stare at them forever...

You didn't know you were crying until you felt wet drops on your lap. You were screaming. It hurts but you continued to scream.

'Why? That's not his. It can't be. No no no no no'

"Oh but it is (y/n)-chan! Akabane Karma's eyes! My best friend's eyes! Those mercury gold eyes that you love oh so much~"

The eyes stared back at you. They weren't filled with mischief, love, excitement. They didn't show anything. They were lifeless and cold.

'Those don't belong to Karma LIES LIES LIES...'

There was no doubt that he was dead. The boy who you slowly fell in love with is long gone.

It made you sick to the core, you wanted to vomit.

"I'm sorry. Please don't cry!" Nagisa says and caresses your cheek.

"Just obey me and we'll be happy. Just the two of us~"

'S-someone..help me..'

"I love you (y/n)~"