Lee Kikwang: Handsome boy who has bad attitude and interest in music. He’s the member of B2ST. He likes Hyosung. A son of Lee’s company owner, one of big company in Korea (Owner of school). Yang Yoseob: Cute boy, loves photography, His dream is to be a famous photographer. A member of B2ST. Likes Hyosung. A son of famous photographer, now his father is a president of art museum in Korea. Jeon Hyosung: Ordinary girl who got a scholarship from Ahyan High School and she’s a g

Yong Junhyung : an ordinary boy, has a lot interest in music, chic and cool guy. Son Naeun : a cute girl who has a crush on Junhyung. Minhyuk's childhood friend. Lee Minhyuk : owner school's son, likes Naeun. nice guy. APink

Their love comes with short time, but they believe that their love is for real. In every song that he sings, he shows her that he can’t sing and can’t live without her. But.. can they keep their love when there is decision between FRIENDSHIP & LOVE? can they keep their love until the end?