(Inspiration : For some reason when I read "Yandere!Shuichi" I thought of a shy Shuichi who would stalk Y/N from afar

We would talk to him and his face would get really red, since he is a very shy boy around "Senpai Y/N"Then we talk to a friend (possibly Rantaro and Ouma) and Shuichi would kill themBut that's just how I would think of it :P)

(Highschool AU

Killing game didn't exist but Hope Peak's Academy did)

Y/N POV:

Things have been strange lately

I feel like someone is watching me but every time I look around there is no one there

This has been going on for a year, at first I thought it was my imagination, then I thought I was paranoid but this is no imagination and it's freaky

I was walking with Rantaro and Kokichi to school since they are my childhood friends

To be honest Rantaro and Kokichi are a bit overprotective due to my stalker now

I wonder who this stalker is......

"Oh, good morning Saihara-Kun!"

Saihara looked at me suprised then his face became sort of red

Saihara: g-good morning Y/N-Senpai....

Oh yeah, I'm a upperclassmen, I'm in the same class as Naegi, Maizono, Asahina, Sakura, Kirigiri, Togami, Kuwata, Chihiro, Mondo, Ishimaru, Celestia, Hifumi, Junko, Murako, Toko, Yasuhiro And Monokuma

Shuichi, Rantaro, Ouma, Maki, Kaito, Kaede, Ryoma, Kirumi, Gonta, Miu, Kiibo, Angie, Tenko, Tsumugi, Korekiyo, Himiko, Monotaro, Monokid, Monodam, and Monophanie are freshmans of the school Hope's Peak Academy

(I know they are kids on Monokuma but I want to include them in the class since they only show up in V3)

"How are you Saihara-Kun?"

Saihara: I-I'm good....

Saihara is really cute but he is really shy and quiet so you are going be the person that would need to talk to him since he cannot muster up any courage to talk due to low self esteem

Ranataro: let's go Y/N-Chan

Ouma: yeah!  The bell is going to ring soon!

"Oh shoot!  I can't be late for class, bye guys!"

I run away so I can get to class before the bells rings

In reality I was 15 minutes earlier because of Ouma and Rantaro....

Darn those two

Shuichi's POV:

Grrrr....they took her away from me again

If this's keeps going then Y/N-senpai would never love me

She barely knows me too....

Might as well go to class early since Y/N is gone

Kaito: heya sidekick!

Kaito Momota, a very positive airhead.  He is a friend but I personally find him slightly annoying

"Kaito-Kun....I'm not your sidekick...."

Kaito: yeah but if you were you would make a good one!

Maki: that's just an excuse for not knowing anything

Maki Harukawa, a quiet girl, she isn't shy just quiet.  She's like that to everyone except us

Kaito: h-hey!  That's not true!

Maki: it is, and at least I don't ask Saihara-Kun everything because I don't know anything

Kaito: Maki-roll why do you need to be so mean!?!

Maki: I'm just stating the truth

Kaede: Good morning everyone!

Kaito: Good morning Akamatsu-San!

Maki: Good morning

"Hi..."

Kaede Akamatsu, our class president....she likes me but I don't

The only person I need in my life is Y/N-Senpai...as long as I have her I am happy

Kaede: so Saihara-Kun, can we hangout today?

"Ah...Sorry Akamatsu-San...I'm busy today...my uncle wants my help on another case again"

Kaede: it's fine!  I understand

I lied, I'm just going to watch Y/N go home and wait for her to talk to me again

But Kokichi Ouma and Rantaro Amami keeps getting in the way

I can't kill them since it would make Y/N-Senpai sad

But....I do know a few things

I could blackmail them so they could stay away from Y/N-Senpai....

Yes that works...

I go and sees Rantaro running to the front because of a cellphone and I decided to follow him and hide

Rantaro: I told you to not call me when I'm at school!  I told you I am not going to do that again!  I don't want to come and do that agai—....h-how much?.....Alright, I will be there.....but only one more time.....let's meet again where we met last time, at Sisuta town?  Alright, see you tonigh.....

He ended the call and sighed

Rantaro: I cannot believe I am doing this!

Them walked away

Sounds like Enjo Kōsai but reversed

Like compensated dating

The girl would decide how far the date will go

The date might end after dinner at a restaurant or the date might end in a hotel room

But instead it's a boy, specifically Rantaro doing compensating dating

It can bring a lot of shame on him if he gets bullied then stops coming to school

That's a good way to blackmail him

I take out my notebook and wrote on the last page

'Rantaro Amami - May be engaging in compensated dating in Sisuta Town'

I see Ouma walking up to the rooftop with Rantaro after a while then I listen to their conversation

Rantaro: so what did you want to talk about?

Ouma: oh..it's just that....when I get home...my father drink a lot....after he comes into my room and......I don't wanna to talk about it

Rantaro: that sounds terrible!  What does your father do?

Ouma: I said I don't want to talk about it!

Rantaro: Okay..but remember, me and Y/N-San are here for you

Ouma: ...thank you

...abuse?  Strange, never thought that would happen

Maybe I could say he wants commit suicide from that

A letter talking about 'domestic abuse' would work

I go to the back of my notebook and write under Rantaro

'Kokichi Ouma - may be going through abuse, remember to write a letter to him saying I want to speak about domestic abuse.  Please meet me on the school rooftop at 3:40pm so he would come to the rooftop and I can push him off and make a fake suicide note'

It works

I started writing a letter on a new piece of paper then place it in Ouma's locker

Then I wait

I go to class and start taking notes

Timeskip

Shuichi's POV:

I go to the rooftop and see Ouma waiting there

I push Ouma off the roof while detaching his shoes to make it look like a suicide

Hm....let us write a suicide note for poor Ouma who fell off the roof

Did suicide because of the abuse

Poor poor boy

A fake suicide

After I create a new account and start texting Rantaro

Text = italic

*Info-Kun added Avacado_Man to the private chat group*

Info-Kun - hello

Avacodo_Man - who is this?

Info-Kun - I am Info-Kun.  A person who knows everything in the school

Avacado_Man - really?  Prove it

Info_Kun - You like a female named "Y/N L/N" and has does compensating date.  You are going to do that in Shisuta town

Avacado_Man - how do you know this?

Info_Kun - Because I know all the information in the world

Avacado_Man - what do you want from me?

Info_Kun - never talk, approach or go near Y/N L/N ever again

Avacado_Man - why?  She is my childhood friend

Info_Kun - one button to let all the information leak to everyone in the school and your family

Avacado_Man - fine

Info_Kun - good choice Rantaro Amami

*Avacado_Man is typing...*

*Info_Kun leaves the chat*

I leave the conversation with a smirk

Now Y/N is all mine...

(Do you wish for part 2?)