(You're Dazai in this AU)

You and Chuuya both go to the same kindergarten. You were friends and enemies, always arguing but in the end hugging.

It was another day like all the others, you sat there in the corner of the room playing with your Odasaku-Man, Chuuya ran up to you and said loudly

"Dazai!! Let's put bombs on the teacher's pants!!"