Jung Hae Ra is a normal 18 years old girl. She has a cousin, Kim Him Chan who she treats like her own brother. Him Chan is a popular guy together with his five friends... including Hae Ra seatmate and ultimate enemy, Jung Dae Hyun. Their group was called BAP. Hae Ra always hangout with these BAP guys as Him Chan always drag her and she will always be left with Jung Dae Hyun by the other guys. To make it worse, she don't really get any idea whta fate has done to her to share the same last name