Krystal is one of the high school student of SM Academy located in Seoul, South Korea. She has never been in a relationship. Krystal always asks Jonghyun, who has feelings towards her, about on how things feel like when you're in-love. Krystal thinks that Jonghyun is a great guy but there's something that stops her from falling in-love with him. One day, on way home from school, Krystal bumps into Minho, the most popular guy at their school. Within the short time talking to him, she experiences a new feeling. But what is this feeling?! Is it the thing called LOVE?