Together with her two best friends, Ji Young and Min Jung, Jae enters the famed school, Shinhwa academy through the scolarship as the very first batch of successful female scholars. Rules are really special for scholars. What will happen when Jae's autistic brother throws a fit? What will happen when Troublemaker Chen approach her? Will Kyuhyun be satisfied with just being best friends with Jae after 11 years? Will she be able to handle all the chaotic events in her life? See how she does her role as a sister, a leader among students!