Our string ( Nagisa x reader)

First day

You were walking to your Class-A when you saw a blue haired boy being bullied and you heard all the nasty things people said to you anger boiled you body and you walked towards them

You: what are you doing!!!!?

Koyama: putting a little twerp in its place

Seo: what's it to you little girl?

You grab their collars pulling them away from the boy

You: looks like you need to be taught a lesson huh?

You beat up the boys as the boy watches in awe they ran away and you turn to him with an innocent smile

You: are you okay?  if they were bigger jerks than anybody should so help me I'm gonna-

???: no it's okay but why did you help me?

You: why? they were ugly jerks that were bullying you I wasn't just gonna leave you

???: but I'm in 3-E

You: so? that doesn't mean anything people say bad stuff about you guys but I don't care

He blushed making you giggle 

You: I'm L/n Y/n nice to meet you but please call me Y/n

???: I'm Shiota Nagisa but you can call me Nagisa

You both shake hands then you hear the bell ring

You: crap! gotta go bye Nagisa-kun

You run off to class and plop yourself in your seat

Time skip

You got called to the office after school you walk in to be greeted by Koyama and Seo with the principal

Principal: is this her boys?

Seo: y-yea

Principal: Y/n why did you beat up these boys?

You: they were bullying a kid I just stood up for him

Principal: by beating these men to a pulp!? Y/n I have had enough of your senseless violence tomorrow you are going to class 3-E

You storm out the office all the way home you slam your bedroom door knowing you lived on your own like always and fall asleep on your bed

The next day

You were walking up the mountain to class 3-E you got info from Mr Karasuma that you were suppose to kill your teacher you were all for it you held your gun and knife in you bag ready to attack to see what your up against once you climb up the mountain you saw everyone outside so you stood on the stairs when some people were about to walk up somebody saw you it was a girl with green hair and hazel eyes  she stared at you both if your hair slowly blowing in the wind before she finally spoke

Kayano: Y/n?

You look down at her from the stairs and give her a closed eye sweet smile  at her

You: hi I'm Y/n it's nice to meet you

She ran towards you and bear hugged you making you nearly fall

You: uh hey do I know you?

She whispered in your ear and you widen your eyes at her words

Kayano: it's me Akari Yukimura

You: Y-Yukimura?

She squeezes you and you hug her then pull away

You: you look so different

Kayano: I know but hey call me Kayano ok

You: why?

Kayano: just call me that please

You: okay

Karma: who's the girl?

Korosensie: everyone this is Y/n welcome her with open arms

You smile and wave

You: hi it's nice to meet you I hope we can all be friends!!

You look at Korosensie and walk towards him walking in between a blond haired girl and a bit with red hair

You: so you really are an octopus cool!

You touch a tentacle and giggle then open your bag

You: Korosensie I got you something I always give my teachers

Korosensie lit up with excitement and reached in to help you

Korosensie: let me-

You pull out your gun and shoot one of his tentacle off leaving everyone shocked his tentacle grows back and you smile at him

You: sorry I wanted to see what the big deal about you was but knowing  you blew up the moon and all

Korosensie: very good Y/ n I can already tell your good with firearms

He patted your head making you smile at him

Korosensie: we're going to have lunch so you should sit and make some friends

Time skip to firearms

Kayano: Y/ n!!

You turn around and see  Kayano walking towards you with some people behind her including Nagisa

You: hey Kayano-chan!

Kayano: wanna have lunch with me and my friends?

You: sure

Kayano: that's Karma

She points to the red head and he smirks

Karma: hey

You: sup

Kayano: that's Hinano

Hinano: your good with firearms!?

You: my dad taught me I'm good at fighting and messing around with knifes

Karma: so we got ourselves a rebel cool! so how did you get here?

You: got in trouble for beating the crap out of people but this time they snitched when I was helping Nagisa

Yukiko: woah your pretty cool Y/ n!

You: I don't try

They all laugh as they eat lunch you and Nagisa talk a bit and you both developed feeling for eachother