Cortis and Y/N are in High school. Y/N and Keonho are friends. Keonho and Y/N have 3 classes together. Math, Chemistry and finally English for Fifth period, also for fifth period Y/N shares that class with Martin, Juhoon and Seonghyeon who are Keonho’s friends. For sixth period Y/N and Martin have a song writing class together, and for her other class Y/N has photography.