Chuuya sits at his desk at school and just stares at the wall. The lesson hasn't started yet, so he has time to think about..something. Chuuya's boredom is interrupted by the teacher, who introduces a new student to Chuuya and his classmates. Chuuya looks up and slowly realizes that this new kid is Dazai. And Dazai goes to Chuuya, clearly intending to sit at the next desk from him