kim Dong Yi is an ordinary korean girl who doesn't really care about appearance. She just go to school with her hair tied up in messy bun and without make up (but she likes to use lipbalm). Her desk mate, Hwang Eun Bi is a centre of attention in school. She is just too gorgeous in Dong Yi's eyes. Everyone tend to be nice to her to get Hwang Eun Bi but she already have a crush that she adore. Dong Yi is a shy girl around guy and turned up around her best buddy. Her brother is in a popular boy group IKON.

Choi sung Min is an idol from boygroup SPEED. He has a lot of girl friends. He knows Dong Yi because they come from the same hometown. He likes Dong Yi.

Choi Jong Hyun is Dong Yi's senior in school. Dong Yi really likes him. He's very charismatic in leadership. he is the president of rap club in the school. he had produce many song that he write the lyrics himself. He also from a well known boy group Teen Top

~so basically this story is the triangle love between Dong Yi, Sung Min, and Jong Hyun (changjo)~