P.S.What is Your Height? BTS Jimin FF

Y/N one-shot story. Jimin is your childhood pen pal. You don't really enjoy music, but today is special. It's a charity concert, Jimin is going to perform something he's never done before. You put him up to it, and now you're there to witness it and be his support. You are about to experience a very touching moment that you've never imagined ever happening to you.