Chae Do-young has admired Seo Ki-hyun ever since seeing him on TV as a child. When they reunite in high school, Ki-hyun hides a sharp, cold nature behind a gentle smile. It turns out he is in love with his childhood friend, Kim Ga-on, and he uses Do-young to get closer to his goal. Despite being exploited and deeply hurt, Do-young finds herself unable to stop her feelings for him.