Dazai is a troublemaker at school, it is not uncommon for him to be scored or even punished for doing something that is not right. But he will still do it, often Dazai get in to the fight.

One day, after he gets scored for 1 month. He came to school "Ah, do you guys miss me? Haha. I wonder if anyone wants to challenge me to a fight today" he said arrogantly. People started whispering and starting to gather, as if waiting for someone to come forward to face Dazai