your bsf was obsessed with boy band named Stray Kids but you didnt even know who were they. One day she forced you to go to the concert with you. you didnt accept it first but she insisted and said she bought v.i.p (closest to the stage) tickets. you sighed and accepted. you two at concert now, she was screaming and joining the songs but you didnt even looking at stage and studiyng books in your hands. your one hand holds the math book and other hand holds the pen. you were literally solving math in a concert. Bang Chan, Changbin, Minho and Han saw you and they all laughed silently while dancing. Hyunjin also saw you and so confused. he wasnt used to see girls who dont know him and also not even looking at the stage & solves math. You were a 4th year medical student.