Dazai Osamu

You knew Dazai back in childhood, he didn't like you, he was always teasing you, making jokes about you, doing dirty tricks, setting you up, this continued until 7th grade, after which your paths diverged.

It was Monday, you were sitting and waiting for class, the bell rang, when suddenly the teacher and a very familiar guy walked in the door. The teacher assigned a new student and you recognized Dazai. "So sit over there," the teacher said, gesturing to the empty seat next to you . Dazai came over and sat down next to you, giving you a displeased look. "-Well, well... Long time no see." he said