Hye Joon transferred to a new school with her brother Hong Joong since their parents divorced. Hong Joong has been taking care of Hye Joon since their parents left them to stay with their grandmother at Ilsan resident’s. After years leaving Gyeosang, she adapted with a new lifestyle which is living without parents supervision and as she just about to entered High School year with her four best friends. She suddenly stumble with someone who seems familiar to her on the way to school. As it’s the first class for high school, the homeroom teacher announced a new transferred student and introduced him, Seonghwa the person who bumped into her in the school bus. As Seonghwa introduced himself to the others in the classroom but he only make eye contact with Hye Joon that send chills down her spine. Will Hye Joon be able to remember Seonghwa as her childhood friend? Will Seonghwa be able to confessed the truth to her? Will they have their happy ending together?