While you were out of the classroom, your student Osamu Dazai is making a total mess together with other students, there were: Papers on the floor, the trash can was turned upside down, the lockers were messy.

To be your first day as a teacher, it is a disaster and a lack of respect...

"Who are you?"

Says Osamu Dazai staring at you, he seems to be looking for his previous Master, he thinks you might be a new student