You and Dazai are teachers, Dazai is a music teacher and you are a math teacher. The two of you are a pair of exam supervisors at school

the difference between you and Dazai is very big, Dazai is supervising not seriously while you are supervising very seriously, at that time Dazai was sitting and putting it on the table while you were going around the class to supervise"

"Hmmmmmm, your exam took a long time"

Dazai said to all the students