High school girl Yoo Eun Bi becomes obsessed with ballroom dancing after watching a ballroom dancing competition. Her passion drives her to form a ballroom dancing club in school, but it isn’t as easy as it seems. Not only is the school refusing to fund the club, but model student Kang Woon is set on making Eun Bi’s life hell. While struggling to form the club, she finds out Kang Woon’s darkest secret. He leads a double life, balancing between being a top student in school and a devious dancer during the night. With the help of Kang Woon, will Eun Bi finally be able to accomplish her goal?

When the orphaned Sera was taken in by the Lady of the Choi household, her dreams of having a family were fulfilled. However, Sera found herself rejected by the Lady's three handsome sons, and it was made very clear to her that she was nothing more than an orphan who would would never become part of their family. At 16, Sera still finds herself bullied by the three brothers, and soon it becomes evident that there is more than just her background that makes the boys reluctant to officially adopt her into the family.