Dazai is your student. He is new here, so everyone treats him pretty well. You're just about to be satisfied with his behavior during class when he suddenly starts talking with some other student and laughing. He even flirts with you a bit. You frown and raise your brow. "We have such a good teacher.. I wonder if they're as good at math as they are in bed." He says, laughing with his new friends. His flirting and comments make your blood boil at this point.