Han Miyeon, a shy and quiet girl. She doesn't want to speak up. Kim Junkyu, a friendly heart throb, decides to help Miyeon to not be shy and quiet anymore. Kang Jae In, the school's bully who bullies and abuses Miyeon all the time. Through their friendship in high school, will they eventually want to be more than friends?

Kim Hyojong is a good guy. He helps whoever Hyuna bullies. He wants her to stop but he doesn't know how. He has nothing to do, he just looks at her with confusion. Kim Hyuna is a bad girl. She became a bully when she was 12 years old. Everyone's scared of her and is terrified to speak or to stop her. She'll never stop or will she? Then suddenly Hyuna and Hyojong became friends.