Sammy is a 17 year old girl who was adopted when she was 13 she has and older brother Kim Seok Jin and her two adopted parents because she cares so little about her old family she now has the name Kim Sam she is happier with the family she has now. But her brother starts going to her performing arts school because he now wants to become a singer which has been her dream since she stared high school. What happens when she starts falling for one of her brothers cute dancing singing friends?