Sulli Choi: beautiful girl of 18, currently lives in France with his family. She knows who lived in Korea a few years ago but can not remember clearly his brother Taemin was too young to remember, after many years returns to Korea with his family, not knowing that someone has been waiting for years

Choi Minho: He studied at the National Institute of Seoul, popular in school, 18 years old, for many years waiting for a friend who made ​​a promise, is president of her class, her best friend is Krystal, when he finds that person who has waited many years trying to resume the friendship but apparently will be very difficult.

Krystal: Best friend of Minho, for 7 years, minho loves more than anyone, is 18 years old, loves to sing, leads the singing workshop school, when she meets Taemin, something born in his heart.

Taemin: Brother of Sulli, Sulli's mother married the father of Taemin in France,is 18 years old,loves his sister Sulli, feels much jealous of any man who approaches when Krystal knows she immediately fell in love, the only friend that allows this is near sulli Heechul.

Heechul: Sulli and Taemin friend has gone for more than three years with Sulli, deeply loves her, when she learns that Sulli is the follow up to Korea, is 21 years old, studied photography, ever jealous of friends except Sulli Minho something he does not like.

Friends here beginning a new story will be mainly Minsul very romantic, I welcome your criticism and comments  atte Nacho