I can't. College students need counselors to approve within three days, and they should give specific reasons, but they can't give all the reasons. Although I am an adult after entering the university, the school should also be responsible for the safety of students, and the main task is to study. Therefore, the reason for students to take time off is generally "necessary, have to go". There is no need to take time off to go to the concert, so you can't take time off to go to the concert.