Kyungbin is a transferred student along her two best friends(Jinhee and Nana). Everyone in her new class really like her because of her easy-talking character and her unique beauty. However, Sehun seemed always send her the cold glare whenever she accidently looked at him. Plus, he would stop talking if his friends started to get you into their conversation. At first she hated him, too. She couldn't understand how he gets annoyed at her in every way she does. After being in the same class as him for 2 weeks, she found herself fall for him day by day. Her friends know her too well and of course they've noticed about it. They almost everyday. Later, Jinhee saw Sehun sneakingly glanced at Kyunbin's face from his seat. He did that really often when Kyungbin turned to another side to talk to someone or look at anything, or when she laughed. One day, the teacher asked the two of them to partner up and they look at each other nervously.