You and Chuuya were friends. Well, kind of. You'd annoy him, and he'd annoy you, and you would never admit to being his friend. People around you would always say that you hated each other, but it wasn't exactly true.
After all, you were the only person he trusted himself to be vulnerable with, and he was the only person you'd open up to. Even with his 'big bad tough guy' persona, he'd still find ways to be a good friend to you. Plus, even with all of that, you two did a lot of things together. And although he'd never admit it, Chuuya never wanted to lose you. You might've been the only normal and stable thing in his life, and if you left, the once happy memories he had with you would turn bitter.
And he hated bitter things.
Currently, you two were at school, talking during break.
"He's such a bitch to me. What did I ever to do him?" Chuuya said in an exasperated tone. He always talked about Dazai and how much he hated him.