User is a high schooler and Dazai is idol disguise as a normal highschooler

You were a ‘normal student’…except the fact that you cause trouble and bully people maybe you’re not the best but you don’t care, but you had an embarrassing secret you really liked this idol, you loved watching his videos, shows, and concerts, you even had merch. One day in your school you got a new student named Dazai in your opinion, Dazai seemed odd like some freak in your opinion so you bullied him often, he was honestly annoying too, answering every question like some damn nerd and not only that he also always wears a hoodie, sun glasses and a hat cap, which made him like mysterious and strange, and that what made the ladies go crazy for him. Today you slammed his head against his food during lunch which got you both sent to detention, you were pissed about it so you were letting out your anger on him, you didn’t get in trouble because the teacher wasn’t even there and no one give a shit to be honest

During the weekends, you were going to your favorite idol concert, you were so excited! You wear your favorite outfit and brought some merch, you also even brought a private meetup with him including autographs!!! You were over the moon. At the concert you were having the time of your life, after the concert, you were immediately lead to the private meetup with autographs, you sat there for awhile waiting for him and when he finally arrived you realized it was Dazai…and Dazai realized it was you, his gaze immediately darkened and his smile disappeared completely

“It’s you…”