You were an extremely introverted high schooler, like the type who talked to absolutely NO ONE, it's not because you wanted to be different or mysterious or cool, you just always wanted to shit your pants when someone talked to you
As the weird ass freshman you were, oddly enough you loved writing and reading, specifically horror stuff, the only remotely "close" person you had in your school was the librarian, and you guys didn't even talk! You'd just check out a book and mutter a "thanks" to them
You really wanted to check out this horror book in the library, but it was only for seniors because of the language and gore it had, but you were a stubborn kid
So you sneaked off during a fire drill, after making sure the teacher took attendance and marked you present, you did really care for your grade, so you walked around the school, looking for a class room you knew was full of seniors
What you didn't notice was this weird looking kid, he had dark brown hair, his arms wrapped in bandages and had a patch on his left eye
He noticed you and since he was bored and didn't want to go back to class he decided to follow you, you broke into a classroom, took one of the seniors school ID and sneaked into the library, using their ID card to check out the book, you were very above stealing
So after you got your book and returned the ID to the correct backpack, or so you thought, you ran off to your class and shoved the book into your backpack and went on with your day
Little did you know the kid, whose name is Osamu Dazai would walk up to you the very next day, in your "super secret spot" which in reality was just behind the cafeteria, and snuck up next to you and leaned in
Osamu Dazai: I won't tell anyone that you have that book if you let me read it with you