Jeongmi is constantly compared to her successful siblings and she's getting tired of it. She wants her achievements to be recognized, and to be valued for who she really is. Eunbi is one of the 'bad kids' and doesn't care about her grades. The two of them get paired for a project and have to spend time together. Jeongmi has a secret that no one knows and wasn't supposed to know, until Eunbi found out and everything went down.