My Insane Love Story (Yandere!Shuichi X Reader X Yandere!Kokichi)

You will be mine...
Mine and mine alone...
Forever...
And ever...
You'll never escape...
From my love...
Ever...
***
What is love? Is it an emotion? A feeling that acts upon itself? A power unseen to mankind? Maybe a desire?
To answer this question, it can be all of those things. But in some cases, it can be something completely different. A dark and evil force that can warp even the purest and innocent to become even as the twisted ones in this world.
Obsession.
And here lies a tale of obsession that world has never known.
Until today.
***
Hello everyone. My name's (y/n) (y/l/n), and this is my story on how my life turned into a living hell. It wasn't always this bad. I used to live a happy and normal life. And the worst part is that I couldn't even see my world changing, but I guess I couldn't have done much about it anyways, for my life was sealed on that day...
... The day I met those two...