Kang Rae Kyung is an all time regular highschool student. She lives with her cousin Siwon, who lives with Eeteuk, so yes, they live together. Nothing can stop her from being happy, but once in a while, there is. It's this so called Kim Kibum, whom she thinks she loves.. She's always irritated when she thinks of him. Why doesn't he love me? But one day, her friend Lee Eunhyuk brought a friend over for a movie. Lee Sungmin. She becomes friends with him, but she doesn't see him like he sees her. He loves her. What will become of the two? What will happen to Kibum?