Jessica Kim is a 17 year old girl who has to move to South Korea to live near here brother, Kim Nam Joon (Rap Monster) due to the recent death of their mother. But what happens when Jessica arrives and catches the eye of the the maknae, Jeon JungKook. But enter in an ex-boyfriend who broke her heart to pursue a career in the music industry, he is no other than Mark Tuan from GOT7 and he would do anything to have her back.