Sangsang University. There are two campus belles attending this school. One is Kang Seulgi, a freshman in the Applied Music department, and the other is her senior, Park Siyoung. Before Kang Seulgi entered the university, Park Siyoung received all the attention and favor from men. She reigned as the perfect Queen Bee of the university, keeping men under her feet and enjoying a very comfortable college life. However, a year later, when Park Siyoung became a sophomore, the beautiful freshman Kang Seulgi entered her department and drew everyone's focus. Feeling her solid position wavering, Park Siyoung began to persistently bully Kang Seulgi out of immense jealousy and anger to break her down.

Thus, Park Siyoung's ridiculous rumors began to spread through the university, and those rumors shattered Seulgi's mental state. For her, every single day was precarious and terrifying. There was no place in the university where she could lean on or stay for long. Everyone in the university except herself believed the rumors; women mocked her, and men approached her with impure intentions. Once that image was branded on her, it could not be washed away. The daily bullying, carried out in absurdly creative and cruel ways, miserably tore her heart apart and began to gradually break her down.