ConAir Integrated School is now the newest trend school in the community. They produce talented musician, painters, radio dj, cooks and chefs from all walks of life. Among them is SuperJ, 13-member boy group singers and dancers, fortunately a student of the CAIS (other singers were forced to dropped out of school in exchange of popularity). CAIS has its own music and recording company, even their own radio network only provided for residents of Con Air Estate.

Kyuhyun, the youngest of SuperJ, used to be jolly and full of life. but an accident changed him. he became serious and always thinking of the said accident though months had passed since then.

Nam SangMi, a new  student, was considered a bad child and has a history of school-hoping and was often kicked out. a trouble maker but has a secret.

What will happen if they meet? Will SangMi be able to make Kyuhyun realize good reasons to live, or will she be bad for him?