Park Jiah (OC), a fresh high school girl with her bubbly and overly hyperactive behaviour. She always get lots of loves and attention from others. But till now, 18 years old yet she doesn't exprience any date or romance love she always wanted like in the drama because of over-protective brother, Park Jimin. One of the member in the rookie group 'BTS'. He doesn't want any harm to reach his only sister. As a older one he promised to take care of her since their parents are not around with them so the only thing he could do is to protect her from anything that might harm her. This is why Jiah hated him a lot but still love him in other way. Her only hope is to get a way to find love. Kim Jonghyun, member of Shinee. Jiah's bias of her life, she always wanted to talk to him and now she wanted to try someting new. Instead of just being his fangirl, why not be his girlfriend? she gave herself a mission to make Jonghyun fall for her since now her brother is part of the kpop industry so there's high chance to make this mission possible. Will there be a happy ending or just another fangirl dream.